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SECTION 00 -- GENERAL INFORMATION -- CHAPTER 1
SECTION 00 - GENERAL INFORMATION
Chapter 1 - General Information
CONTENTS
Section Description Page

Personal Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Machine Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Precautionary Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Servicing the Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operating the Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Driving the Tractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating the PTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Diesel Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Frame (ROPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Instruction Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ecology and the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Tightening Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
00 400 Lubrication and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Liquid Ballast (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Rear Tire Liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
00-1
PRECAUTIONARY
STATEMENTS
PERSONAL SAFETY
Throughout this manual and on machine decals, you will find precautionary statements (“DANGER”,
“WARNING”, and “CAUTION”) followed by specific instructions. These precautions are intended for the personal
safety of you and those working with you. Please take the time to read them.
DANGER
This word “DANGER” indicates an immediate hazardous situation that, if not avoided, will result in death
or serious injury. The color associated with Danger is RED.
WARNING
This word “WARNING” indicates a potentially hazardous situation that, if not avoided, could result in
death or serious injury. The color associated with Warning is ORANGE.
CAUTION
This word “CAUTION” indicates a potentially hazardous situation that, if not avoided, may result in minor
or moderate injury. It may also be used to alert against unsafe practices. The color associated with
Caution is YELLOW.
FAILURE TO FOLLOW THE “DANGER”, “WARNING”, AND “CAUTION” INSTRUCTIONS MAY RESULT IN
SERIOUS BODILY INJURY OR DEATH.
MACHINE SAFETY
The precautionary statement (“IMPORTANT”) is followed by specific instructions. This statement is intended for
machine safety.
IMPORTANT: The word “IMPORTANT” is used to inform the reader of something he needs to know to prevent
minor machine damage if a certain procedure is not followed.
INFORMATION
NOTE: Instructions used to identify and present supplementary information.
00-2
SAFETY
PRECAUTIONARY STATEMENTS
A careful operator is the best operator. Most accidents can be avoided by observing certain precautions. To help
prevent accidents, read the following precautions before operating this equipment. Equipment should be oper-
ated only by those who are responsible and instructed to do so.
Carefully review the procedures given in this manual with all operators. It is important that all operators be familiar
with and follow safety precautions.
THE TRACTOR 3. Keep the tractor and equipment, particularly

brakes and steering, maintained in a reliable and
1. Read the Operator’s Manual carefully before satisfactory condition to ensure your safety and
using the tractor. Lack of operating knowledge comply with legal requirements.
can lead to accidents.
4. Keep open flame or cold weather starting aids
2. Use an approved roll bar and seat belt for safe away from the battery to prevent fires or
operation. Overturning a tractor without a roll bar explosions. Use jumper cables according to
can result in death or injury. If your tractor is not instructions to prevent sparks which could cause
equipped with a roll bar and seat belt, see your explosion.
New Holland Dealer.
5. Stop the engine before performing any service
3. Always use the seat belt. The only instance when on the tractor.
the seat belt should not be used is if the roll bar
has been removed from the tractor. 6. Escaping hydraulic/diesel fluid under pressure
can penetrate the skin causing serious injury. If
4. If a front end loader is to be installed, always use fluid is injected into the skin, obtain medical
a FOPS (Falling Object Protective Structure) attention immediately or gangrene may result.
canopy to avoid injury from falling objects.
• DO NOT use your hand to check for leaks.
5. Use the handholds and step plates when getting Use a piece of cardboard or paper to search
on and off the tractor to prevent falls. Keep steps for leaks.
and platform cleared of mud and debris.
• Stop the engine and relieve pressure before
6. Do not permit anyone but the operator to ride on connecting or disconnecting lines.
the tractor. There is no safe place for extra riders. • Tighten all connections before starting the
7. Keep all safety decals clean of dirt and grime, engine or pressurizing lines.
and replace all missing, illegible, or damaged 7. Do not modify or permit anyone else to modify or
safety decals. See the list of decals in the Decal alter this tractor or any of its components or
section of this manual. functions without first consulting a New Holland
SERVICING THE TRACTOR Dealer.
1. The cooling system operates under pressure 8. The fuel oil in the injection system is under high
which is controlled by the radiator cap. It is pressure and can penetrate the skin. Unqualified
dangerous to remove the cap while the system is persons should not remove or attempt to adjust
hot. Always turn the cap slowly to the first stop a pump, injector, nozzle, or any other part of the
and allow pressure to escape before removing fuel injection system. Failure to follow these
instructions can result in serious injury.
the cap entirely.
2. Keep any type of open flame away from the 9. Continuous long-term contact with used engine
tractor and do not smoke while refueling. Wait for oil may cause skin cancer. Avoid prolonged
the engine to cool before refueling. contact with used engine oil. Wash skin promptly
with soap and water.
00-3
10. Some components of your tractor, such as 9. Pull only from the drawbar or the lower link
gaskets and friction surfaces (brake linings, drawbar in the down position. Use only a drawbar
clutch linings, etc.) may contain asbestos. pin that locks in place. Pulling from the tractor
Breathing asbestos dust is dangerous to your rear axle or any point above the axle may cause
health. You are advised to have any mainte- the tractor to upset.
nance or repair on such components carried out
10. If the front end of the tractor tends to rise when
by an authorized New Holland Dealer. However,
heavy implements are attached to the three-
if service operations are to be undertaken on
point hitch, install front end or front wheel
parts that contain asbestos, the essential
weights. Do not operate the tractor with a light
precautions listed below must be observed:
front end.
• Work out of doors or in a well ventilated area.
11. Always set the hydraulic selector lever in position
• Dust found on the tractor or produced during control when attaching or transporting equip-
work on the tractor should be removed by ment. Ensure hydraulic couplers are properly
extraction, not by blowing. mounted and will disconnect safely in case of
• Dust waste should be dampened, placed in accidental detachment of implement.
a sealed container, and marked to ensure
12. Do not leave equipment in the raised position.
safe disposal.
• If any cutting, drilling, etc. is attempted on 13. Use the flasher/turn signal lights and SMV signs
materials containing asbestos, the item when traveling on public roads both day and
should be dampened and only hand tools or night (unless prohibited by law).
low speed power tools used. 14. When operating at night, adjust lights to prevent
blinding oncoming drivers.
OPERATING THE TRACTOR
1. Before starting the tractor, apply the parking
DRIVING THE TRACTOR
brake, place the PTO lever in the “OFF” position, 1. Watch where you are going, especially at row
the lift control lever in the down position, the ends, on roads, around trees and low hanging
remote control valve levers in the neutral obstacles.
position, and the transmission in neutral.
2. To avoid upsets, drive the tractor with care and at
2. Always sit in the tractor seat when starting the a safe speed. Use extra caution when operating
engine or operating controls. Do not start the over rough ground, when crossing ditches or
engine or operate controls while standing beside slopes, and when turning corners.
the tractor.
3. To provide two-wheel braking, lock tractor brake
3. Do not bypass the neutral start switches. Consult pedals together when transporting on roads.
your New Holland Dealer if your neutral start
controls malfunction. Use jumper cables only in 4. Do not coast or free wheel down hills. Use the
the recommended manner. Improper use can same gear when going downhill as is used when
result in tractor runaway. going uphill.
4. Avoid accidental contact with the gear shift lever 5. Any towed vehicle with a total weight exceeding
while the engine is running, as this can cause that of the towing tractor should be equipped with
unexpected tractor movement. brakes for safe operation.
5. Before getting off the tractor, disengage the PTO, 6. If the tractor becomes stuck or the tires become
turn the engine off, and apply the parking brake. frozen to the ground, back up the tractor to
Never get off the tractor while it is in motion. prevent upset.
6. Do not park the tractor on a steep incline. 7. Always check overhead clearance, especially
when transporting the tractor.
7. Do not operate the tractor engine in an enclosed
building without adequate ventilation. Exhaust 8. When operating at night, adjust lights to prevent
fumes can cause death or illness. blinding oncoming drivers.
8. If the power steering or engine ceases operating,

stop the tractor immediately.
00-4
OPERATING THE PTO 6. Wipe up spilled fuel immediately.

1. When operating PTO driven equipment, shut off 7. Always tighten the fuel tank cap securely.
the engine and wait until the PTO stops before 8. If the original fuel tank cap is lost, replace it with
getting off the tractor and disconnecting the a New Holland approved cap. A non-approved,
equipment. proprietary cap may not be safe.
2. Do not wear loose clothing when operating the 9. Keep equipment clean and properly maintained.
power take-off or when near rotating equipment.
10. 1Do not drive equipment near open fires.
3. When operating stationary PTO driven equip-
ment, always place both gear shift levers in 11. Never use fuel for cleaning purposes.
neutral, apply the tractor parking brake, and 12. Arrange fuel purchases so that winter grade fuels
block the rear wheels front and back. are not held over and used in the spring.
4. To avoid injury, do not clean, adjust, unclog, or
service PTO driven equipment when the tractor SAFETY FRAME (ROPS)
engine is running.
Your New Holland tractor is equipped with a safety
5. Ensure the PTO master shield is installed at all frame. It must be maintained in a serviceable
times. Always replace the PTO shield cap when condition. Be careful when driving through doorways
the PTO is not in use. or working in confined spaces with low headroom.
DIESEL FUEL UNDER NO CIRCUMSTANCES should you:
1. UNDER NO CIRCUMSTANCES should gaso- • modify, drill, or alter the safety frame in any way.
line, alcohol, or blended fuels be added to diesel Doing so may render you liable to legal
fuel. These combinations can create an prosecution.
increased fire or explosive hazard. Such blends
• attempt to straighten or weld any part of the main
are more explosive than pure gasoline in a
frame or retaining brackets which have suffered
closed container such as a fuel tank. DO NOT
damage. Doing so may weaken the structure and
USE THESE BLENDS.
endanger your safety.
2. Never remove the fuel cap or refuel with the • secure any parts on the main frame or attach
engine running or hot. your safety frame with anything other than the
3. Do not smoke while refueling or when standing special high tensile bolts and nuts specified.
near fuel. • attach chains or ropes to the main frame for
pulling purposes.
4. Maintain control of the fuel filler pipe nozzle when
filling the tank. • take unnecessary risks even though your safety
frame affords you the maximum protection
5. Do not fill the fuel tank to capacity. Allow room for possible.
expansion.
WHEN YOU SEE THIS SYMBOL

IT MEANS:
ATTENTION!
BECOME ALERT!
YOUR SAFETY IS INVOLVED!
00-5
DECALS
If safety or instruction decals become damaged or illegible, new decals should be obtained from your New Hol-
land Dealer and placed at their original positions.
SAFETY DECALS
WARNING WARNING
WARNING: Pull Only From Drawbar

PART NO: 86532904
LOCATION: PTO Shield
WARNING
WARNING: To Jump Start

PART NO: 86532905
LOCATION: Battery Hold Down
WARNING: Before Starting

and Operating
PART NO: 86532909
LOCATION: Inside Left-Hand Fender
WARNING: Front-Wheel Drive Usage
(SuperSteert only)
PART NO: 86532902
LOCATION: Inside Left-Hand Fender WARNING
WARNING: Rotating Fan

WARNING: Lock Park Brake and Belts
PART NO: 86576391 PART NO: 86532907
LOCATION: Right Side Rear Console LOCATION: Both Sides
Below Light Switch of Radiator
00-6
INSTRUCTION DECALS
Range Selector Range Selector Position Control (Optional)
Lever Lever Lever Operating Remote
(Gear) (Hydrostatic) PART NO: Control
PART NO: PART NO:
86532912 86532896 86571897 Valve-Single
LOCATION: LOCATION: LOCATION: Spool
Left-Hand POD Top Left-Hand POD Top Right-Hand POD Top PART NO:
86532910
LOCATION:
Right-Hand POD Top
Front-Wheel Front-Wheel PTO Control PTO Control

Drive Control Drive Control Lever (Rear) Lever (Mid)
Lever Lever PART NO: PART NO:
PART NO: PART NO: 86532898 86532899
86532913 86532900 LOCATION: LOCATION:
LOCATION: LOCATION: Left-Hand POD Top Left-Hand POD Top
Left-Hand POD Top Left-Hand POD Top
(SuperSteer Only)
00-7
Differential Lock Starter Switch Flow Control Valve Engine Oil

PART NO: PART NO: PART NO: PART NO:
86532901 86400175 86532897 86532916
LOCATION: LOCATION: LOCATION: LOCATION:
Left Side Operator’s Right Console Panel Top of Flow Control Engine Oil Filler Cap
Platform (HST) Knob
Right Side Operator’s
Platform (Gear)
(Optional) (Optional)
Coupler--Extending Coupler--Retracting
PART NO:86532920 PART NO:86532919
Hyd. Manifold Operation
(See Operator’s Manual)
PART NO:
86532914
LOCATION:
Right-Hand Side of Hyd. (Optional) (Optional)
Manifold/Air Filter Cap Coupler--Extending Coupler--Retracting
PART NO:86532921 PART NO:86532922
Power Steering Fluid

PART NO:
86532903
LOCATION:
Optional)
Top of P.S. Reservoir
Operating Remote
Control Valve--
Double Spool
PART NO:
86532911
LOCATION:
Cover of 2-Spool Lubrication and
Remote Valve Maintenance Intervals
PART NO:
86400357
LOCATION:
Inside of Hood
00-8
Air Cleaner Maintenance

PART NO: 86401636
LOCATION: Air Cleaner Canister
Turn Signal
PART NO: 86400176
LOCATION: Right Console
Panel below Turn Signal
Switch
Throttle Red Reflective Tape

PART NO: FONN9N848BA PART NO: 86532998
LOCATION: Top Right Dash LOCATION: Back Rear Fender
00-9
PLEASE READ CAREFULLY: New Holland North America, Inc. is continually

For a complete list of the pre-delivery service checks striving to improve its products. We reserve the right
performed by your dealer, refer to the PRE-DELIV- to change prices, specification, or equipment at any
ERY SERVICE checklist found at the back of this time without notice.
manual. Keep one copy as your record of the service
All data given in this book is subject to production
performed. The other copy should be removed from
variations. Dimensions and weights are approximate
the manual and kept by your dealer. MAKE SURE
only, and the illustrations do not necessarily depict
THAT BOTH COPIES ARE COMPLETED AND
tractors in standard condition. For exact information
THAT YOU AND THE DEALER SIGN BOTH
about any particular tractor, please consult your New
COPIES.
Holland dealer.
A PRODUCT IDENTIFICATION PLATE is located on
the left-hand side of the transmission housing. The
numbers on the plate are important in the event your
tractor should require future service. For your
convenience, have your dealer record these
numbers in the appropriate spaces below.
50035995
00-10
ECOLOGY AND THE ENVIRONMENT

Soil, air, and water are vital factors of agriculture and 3. Modern oils contain additives. Do not burn
life in general. When legislation does not yet rule the contaminated fuels and or waste oils in ordinary
treatment of some of the substances which are heating systems.
required by advanced technology, common sense
4. Avoid spillage when draining off used engine
should govern the use and disposal of products of a
coolant mixtures, engine, gearbox and hydraulic
chemical and petrochemical nature.
oils, brake fluids, etc. Do not mix drained brake
The following are recommendations which may be of fluids or fuels with lubricants. Store them safely
assistance: until they can be disposed of in a proper way to
comply with local legislation and available
resources.
• Become acquainted with and ensure that you
understand the relative legislation applicable to 5. Modern coolant mixtures, i.e. antifreeze and
your country. other additives, should be replaced every two
• Where no legislation exists, obtain information years. They should not be allowed to get into the
from suppliers of oils, filters, batteries, fuels, soil but should be collected and disposed of
antifreeze, cleaning agents, etc., with regard to safely.
their effect on man and nature and how to safely 6. Do not open the air-conditioning system yourself.
store, use and dispose of these substances. It contains gases which should not be released
Agricultural consultants will, in many cases, be into the atmosphere. Your dealer or air
able to help you as well. conditioning specialist has a special extractor for
this purpose and will have to recharge the system
properly.
HELPFUL HINTS 7. Repair any leaks or defects in the engine cooling
or hydraulic system immediately.
1. Avoid filling tanks using cans or inappropriate
pressurized fuel delivery systems which may 8. Do not increase the pressure in a pressurized
cause considerable spillage. circuit as this may lead to a component failure.
2. In general, avoid skin contact with all fuels, oils, 9. Protect hoses during welding as penetrating
acids, solvents, etc. Most of them contain weld splatter may burn a hole or weaken them,
substances which may be harmful to your health. allowing the loss of oils, coolant, etc.
00-11
INTERNATIONAL SYMBOLS
As a guide to the operation of your tractor, various universal symbols have been utilized on the instruments, con-
trols, switches, and fuse box. The symbols are shown below with an indication of their meaning.
Thermostart Radio P.T.O. Position

starting aid Control
Transmission Draft
Alternator Keep alive N Control
KAM in neutral
charge memory
Accessory
Creeper socket
Turn signals gears
Fuel level
Implement
Turn signals Slow or socket
Automatic --one trailer low setting
Fuel shut-off
%age
Turn signals Fast or high slip
Engine speed --two trailers setting
(rev/min x 100)
Hitch raise
Front wind- Ground (rear)
screen speed
Hours recorded wash/wipe
Hitch lower
(rear)
Rear wind- Differential
Engine oil screen lock
pressure wash/wipe Hitch height
limit (rear)
Heater temp- Rear axle
Engine coolant erature control oil tem- Hitch height
temperature perature limit (front)
Heater fan Hitch disabled

Coolant Transmission
level oil pressure
Air conditioner Hydraulic and
FWD transmission
Tractor lights filters
engaged
Air filter
blocked
Remote
Headlamp FWD valve extend
main beam Parking disengaged
brake Remote
valve retract
Headlamp Brake fluid
dipped beam level Warning!
Remote
valve float
Work lamps Trailer Hazard
brake warning lights Malfunction!
See Operator’s
Manual
Stop Roof Variable
lamps beacon control
Malfunction!
(alternative
Warning! symbol)
Horn Corrosive Pressurized!
Open carefully See Operator’s
substance Manual
00-12
SPECIFICATIONS
Model TC29DA— Model TC33DA—

Hydrostatic/Gear Hydrostatic/Gear
ENGINE
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diesel Diesel
Engine Gross Horsepower . . . . . . . . . . 21.6 kw (29) 24.6 kw (33)
Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . 3 3
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 mm (3.31″) 84 mm (3.31″)
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 mm (3.15″) 90 mm (3.54″)
Displacement . . . . . . . . . . . . . . . . . . . . . 1.33 L (81.2 cu. in.) 1.50 L (91.3 cu. in.)
Compression Ratio . . . . . . . . . . . . . . . . 22.7:1 22.2:1
Firing Order . . . . . . . . . . . . . . . . . . . . . . 1-2-3 1-2-3
Low Idle Speed . . . . . . . . . . . . . . . . . . . 1000 RPM 1000 RPM
Maximum Speed:
High Idle . . . . . . . . . . . . . . . . . . . . . . . . 3040 RPM 3040 RPM
Rated . . . . . . . . . . . . . . . . . . . . . . . . . . 2800 RPM 2800 RPM
Valve Clearance (Cold):
Intake . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 mm (0.008″) 0.20 mm (0.008″)
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 0.20 mm (0.008″) 0.20 mm (0.008″)
CAPACITIES
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . 27.6 liters/ 27.6 liters/
7.3 U.S. gals. 7.3 U.S. gals.
Cooling System . . . . . . . . . . . . . . . . . . . 4.0 liters/ 4.0 liters/

4.2 U.S. qts. 4.2 U.S. qts.
Engine Crankcase:
With Filter . . . . . . . . . . . . . . . . . . . . . . . 4.0 liters/ 4.0 liters/
4.2 U.S. qts. 4.2 U.S. qts.
Rear Axle & Transmission

(Includes Hydraulics)
Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.5 liters/ 32.5 liters/
HST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.3 liters/ 33.3 liters/

Power Steering . . . . . . . . . . . . . . . . . . . . 1.6 liters/ 1.6 liters/

1.7 U.S. qts. 1.7 U.S. qts.
Front Axle Final Reduction . . . . . . . . . . 0.8 liters/ 0.8 liters/

0.85 U.S. qts. 0.85 U.S. qts.
Differential Gear Case . . . . . . . . . . . . . . . 1.4 liters/ 1.4 liters/

1.5 U.S. qts. 1.5 U.S. qts.
00-13

COOLING SYSTEM
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressurized Liquid with Pressurized Liquid with
Recirculating Bypass Recirculating Bypass
Water Pump:
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal Centrifugal
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . V-Belt V-Belt
Belt
Deflection . . . . . . . . . . . . . . . . . . . . . . . 10-15 mm (7/16″-9/16″) when 10-15 mm (7/16″-9/16″) when
9-11 kg (20-25 lbs.) thumb 9-11 kg (20-25 lbs.) thumb
pressure is applied midway pressure is applied midway
between belt pulleys between belt pulleys
Fan Diameter . . . . . . . . . . . . . . . . . . . . 340 mm (13.4″) 340 mm (13.4″)
Thermostat:
Start to Open . . . . . . . . . . . . . . . . . . . . 71°C (160°F) 71°C (160°F)
Fully Open . . . . . . . . . . . . . . . . . . . . . . 85°C (185°F) 85°C (185°F)
Radiator Cap . . . . . . . . . . . . . . . . . . . . . 0.9 bar (13 PSI) 0.9 bar (13 PSI)
ELECTRICAL SYSTEM
Alternator . . . . . . . . . . . . . . . . . . . . . . . . 12-volt, Heavy Duty, 40 amps 12-volt, Heavy Duty, 40 amps
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-volt, w/ negative ground, 12-volt, w/ negative ground,
420 cca 420 cca
Starting Motor . . . . . . . . . . . . . . . . . . . . . Solenoid Pre-Engaged Solenoid Pre-Engaged
Reduction Reduction
FUEL SYSTEM
Fuel Type . . . . . . . . . . . . . . . . . . . . . . . . Diesel Diesel
Type of Fuel
to Use if
Above 40°F . . . . . . . . . . . . . . . . . . . . . No. 2-Diesel, No. 2-Diesel,
Cetane Rating: Minimum 40 Cetane Rating: Minimum 40
Type of Fuel
to Use if
Below 40°F . . . . . . . . . . . . . . . . . . . . . No. 1-Diesel, No. 1-Diesel,
Cetane Rating: Minimum 40 Cetane Rating: Minimum 40
Injection Pump:
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . In-Line In-Line
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 21° BTDC 21° BTDC
00-14

CLUTCH
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 mm (8.46″) (HST) 225 mm (8.86″) (HST)
Dry Disc, Organic Face Dry Disc, Organic Face
215 mm (8.46″) -- 225 mm (8.86″) --
Transmission 9 x 3 Trans Transmission 9 x 3 Trans
215 mm (8.46″) -- 215 mm (8.46″) --
PTO 9 x 3 Trans PTO 9 x 3 Trans
Pedal
Free-Travel . . . . . . . . . . . . . . . . . . . . . . . 19 mm-30 mm (3/4″-1-3/16″) 19 mm-30 mm (3/4″-1-3/16″)
BRAKES
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wet Disc Wet Disc
Disc 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 mm x 118 mm Diameter 155 mm x 118 mm Diameter
(6.1″ x 4.65″) (6.1″ x 4.65″)
STEERING
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Power
Turns
Lock-to-Lock:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 3.1
SuperSteer . . . . . . . . . . . . . . . . . . . . . . 4.1 4.1
Front Wheel
Toe-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 mm-5 mm (0″-13/64″) 0 mm-5 mm (0″-13/64″)
Turning Radius w/o Brakes:

FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 2946.4 mm (116″) 2946.4 mm (116″)
SuperSteer . . . . . . . . . . . . . . . . . . . . . . 2700 mm (106.3″) 2700 mm (106.3″)
POWER TAKE-OFF
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transmission Single Clutch -- Transmission Single Clutch --
HST HST
Live, Dual Clutch -- Gear Live, Dual Clutch -- Gear
Shaft:
Rear PTO . . . . . . . . . . . . . . . . . . . . . . . 35 mm (1-3/8″) 35 mm (1-3/8″)
Mid PTO . . . . . . . . . . . . . . . . . . . . . . . . 25.4 mm (1″) 25.4 mm (1″)
Engine Speed for 540 RPM Rear
PTO Operation . . . . . . . . . . . . . . . . . . . . 2465 RPM -- 2465 RPM --
HST Transmission HST Transmission
2420 RPM -- 2420 RPM --
Gear Transmission Gear Transmission
Horsepower PTO Observed . . . . . . . . . 17.6 kw (23.6 HP) -- HST 20.1 kw (26.9 HP) -- HST
18.7 kw (25.1 HP) -- Gear 20.3 kw (28.6 HP) -- Gear
Engine Speed for 2000 RPM Mid
PTO Operation . . . . . . . . . . . . . . . . . . . . 2420 RPM -- HST 2420 RPM -- HST
2377 RPM -- Gear 2377 RPM -- Gear
HYDRAULIC LIFT SYSTEM

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Open Center Open Center
Pump Type . . . . . . . . . . . . . . . . . . . . . . . Gear Gear
Pump Capacity . . . . . . . . . . . . . . . . . . . . 7.6 U.S. gpm (29 lpm) 7.6 U.S. gpm (29 lpm)
System Relief Valve Setting . . . . . . . . . 147 bar (2133 PSI) 147 bar (2133 PSI)
00-15
TRANSMISSION SPEEDS
(Hydrostatic)
(2,800 RPM Engine (2,800 RPM Engine

Speed with 11.2 x 24 Speed with 11.2 x 24
Rear Tires) Rear Tires)
Gear Position:
Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-6.27 KPH (0-3.9 MPH) 0-6.27 KPH (0-3.9 MPH)
Mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-13.03 KPH (0-8.09 MPH) 0-13.03 KPH (0-8.09 MPH)
High . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-25.08 KPH (0-15.59 MPH) 0-25.08 KPH (0-15.59 MPH)
Reverse Low . . . . . . . . . . . . . . . . . . . . 0-4.7 KPH (0-2.92 MPH) 0-4.7 KPH (0-2.92 MPH)
Reverse Mid . . . . . . . . . . . . . . . . . . . . 0-9.77 KPH (0-6.07 MPH) 0-9.77 KPH (0-6.07 MPH)
Reverse High . . . . . . . . . . . . . . . . . . . . 0-18.81 KPH (0-11.69 MPH) 0-18.81 KPH (0-11.69 MPH)
TRANSMISSION SPEEDS
(Gear)
(2,800 RPM Engine (2,800 RPM Engine
Speed with 11.2 x 24 Speed with 11.2 x 24
Rear Tires) Rear Tires)
Gear Position:
1st . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.17 KPH (0.73 MPH) 1.17 KPH (0.73 MPH)
2nd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.73 KPH (1.08 MPH) 1.73 KPH (1.08 MPH)
3rd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.48 KPH (1.54 MPH) 2.48 KPH (1.54 MPH)
4th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.67 KPH (2.28 MPH) 3.67 KPH (2.28 MPH)
5th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.46 KPH (3.39 MPH) 5.46 KPH (3.39 MPH)
6th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.83 KPH (4.87 MPH) 7.83 KPH (4.87 MPH)
7th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.47 KPH (5.88 MPH) 9.47 KPH (5.88 MPH)
8th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.97 KPH (8.68 MPH) 13.97 KPH (8.68 MPH)
9th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.58 KPH (12.79 MPH) 20.58 KPH (12.79 MPH)
Reverse 1 . . . . . . . . . . . . . . . . . . . . . . . 1.79 KPH (1.11 MPH) 1.79 KPH (1.11 MPH)
00-16

CAST IRON WEIGHTS
Front End:
R-4 & Turf
Tires with
FWD, &
SuperSteer . . . . . . . . . . . . . . . . . . . . . . (2) weights @ 26 kg (2) weights @ 26 kg
(57 lbs.) each (57 lbs.) each
Optional (2) weights Optional (2) weights

@ 45 kg (100 lbs.) each @ 45 kg (100 lbs.) each
Ag. Tires
with FWD
(w/o SuperSteer . . . . . . . . . . . . . . . . . (2) weights @ 26 kg (2) weights @ 26 kg
Ag. Tires
with SuperSteer . . . . . . . . . . . . . . . . . . (1) weight @ 26 kg (1) weight @ 26 kg
(57 lbs.) (57 lbs.)
Rear Wheel:
R-4 Tires . . . . . . . . . . . . . . . . . . . . . . . . (4) weights (2) per wheel @ (4) weights (2) per wheel @
34 kg (75 lbs.) each 34 kg (75 lbs.) each
Turf Tires . . . . . . . . . . . . . . . . . . . . . . . --- ---
Ag. Tires . . . . . . . . . . . . . . . . . . . . . . . . (4) weights (2) per (4) weights (2) per
wheel @ 48 kg wheel @ 48 kg
DRAWBARS
Swinging/Extendible . . . . . . . . . . . . . . . Standard Standard
00-17

TIRES
FRONT:
Agricultural:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14, 4PR, R1 7-14, 4PR, R1
Turf:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 x 8.50-14, 4PR, R3 24 x 8.50-14, 4PR, R3
Industrial:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 x 8.50-14, 6PR, R4 25 x 8.50-14, 6PR, R4
REAR:
Agricultural . . . . . . . . . . . . . . . . . . . . . . . 11.2-24, 4PR, R1 11.2-24, 4PR, R1
Turf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.6-16, 4PR, R3 13.6-16, 4PR, R3
Industrial . . . . . . . . . . . . . . . . . . . . . . . . . 15-19.50, 6PR, R4 15-19.50, 6PR, R4
WHEEL BOLT TORQUES

Front Wheel—
Disc-to-Hub:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 122 N⋅m (90 ft. lbs.) 122 N⋅m (90 ft. lbs.)
Rear Wheel—
Disc-to Rim & Disc-to Axle . . . . . . . . . . 169 N⋅m (125 ft. lbs.) 169 N⋅m (125 ft. lbs.)
ROPS ATTACHING BOLT TORQUES

ROPS to Rear Axle . . . . . . . . . . . . . . . . 54 N⋅m (40 ft. lbs.) 54 N⋅m (40 ft. lbs.)
Seat Belt . . . . . . . . . . . . . . . . . . . . . . . . . . 47.4 N⋅m (35 ft. lbs.) 47.4 N⋅m (35 ft. lbs.)
00-18
GENERAL DIMENSIONS
(1)—LENGTH:
FWD:
Turf Tires . . . . . . . . . . . . . . . . . . . . . . . 2669.5 mm (105.1″) 2669.5 mm (105.1″)
Ag. Tires . . . . . . . . . . . . . . . . . . . . . . . . 2697.5 mm (106.2″) 2697.5 mm (106.2″)
R4 Tires . . . . . . . . . . . . . . . . . . . . . . . . 2677.2 mm (105.4″) 2677.2 mm (105.4″)
Turf Special (Galaxy® Tires) . . . . . . . . 2671 mm (105.2″) 2671 mm (105.2″)
SuperSteer:
Turf Tires . . . . . . . . . . . . . . . . . . . . . . . 2900.7 mm (114.2″) 2900.7 mm (114.2″)
Ag. Tires . . . . . . . . . . . . . . . . . . . . . . . . 2928.6 mm (115.3″) 2928.6 mm (115.3″)
R4 Tires . . . . . . . . . . . . . . . . . . . . . . . . 2905.8 mm (114.4″) 2905.8 mm (114.4″)
Turf Special (Galaxy Tires) . . . . . . . . . 2900 mm (114.2″) 2900 mm (114.2″)
(2)—WHEEL BASE:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1600 mm (63.0″) 1600 mm (63.0″)
SuperSteer . . . . . . . . . . . . . . . . . . . . . . . 1829 mm (72.0″) 1829 mm (72.0″)
HEIGHT:
(3)—Top of Steering Wheel:

Turf Tires . . . . . . . . . . . . . . . . . . . . . . . 1412 mm (55.6″) 1412 mm (55.6″)
Ag. Tires . . . . . . . . . . . . . . . . . . . . . . . . 1354 mm (53.3″) 1354 mm (53.3″)
R4 Tires . . . . . . . . . . . . . . . . . . . . . . . . 1400 mm (55.1″) 1400 mm (55.1″)
Turf Special (Galaxy Tires) . . . . . . . . 1417 mm (55.8″) 1417 mm (55.8″)
(4)—Top of ROPS—Folding:
w/Turf Tires—
Up Position . . . . . . . . . . . . . . . . . . . . . . 2169 mm (85.4″) 2169 mm (85.4″)
Down Position . . . . . . . . . . . . . . . . . . . 1704 mm (67.1″) 1704 mm (67.1″)
w/Ag. Tires—
Up Position . . . . . . . . . . . . . . . . . . . . . . 2230 mm (87.8″) 2230 mm (87.8″)
w/R4 Tires—
Up Position . . . . . . . . . . . . . . . . . . . . . . 2156 mm (84.9″) 2156 mm (84.9″)
w/Turf Special (Galaxy)—
Up Position . . . . . . . . . . . . . . . . . . . . . . 2173 mm (85.6″) 2173 mm (85.6″)
00-19

(5)—WIDTH:
Rear Axle—
Outside to Outside:
Turf Tires—
Dished In . . . . . . . . . . . . . . . . . . . . . . . 1463 mm (57.6″) 1463 mm (57.6″)
Dished Out . . . . . . . . . . . . . . . . . . . . . . 1529 mm (60.2″) 1529 mm (60.2″)
Ag. Tires—
Dished In . . . . . . . . . . . . . . . . . . . . . . . 1379 mm (54.3″) 1379 mm (54.3″)
Dished Out . . . . . . . . . . . . . . . . . . . . . . 1511 mm (59.5″) 1511 mm (59.5″)
R4 Tires—
Dished Out (Only) . . . . . . . . . . . . . . . . 1575 mm (62.0″) 1575 mm (62.0″)
Turf Special (Galaxy Tires)—
Dished Out (Only) . . . . . . . . . . . . . . . . 1721 mm (67.75″) 1721 mm (67.75″)
(6)—MINIMUM GROUND CLEARANCE:

Turf Tires . . . . . . . . . . . . . . . . . . . . . . . . . 300 mm (11.8″) 300 mm (11.8″)
Ag. Tires . . . . . . . . . . . . . . . . . . . . . . . . . 330 mm (13.0″) 330 mm (13.0″)
R4 Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 287 mm (11.3″) 287 mm (11.3″)
SuperSteer . . . . . . . . . . . . . . . . . . . . . . . 177.8 mm (7.0″) 177.8 mm (7.0″)
Turf Special (Galaxy Tires) . . . . . . . . . 292 mm (11.5″) 292 mm (11.5″)
50043961
00-20

WHEEL TREAD SETTINGS:
FRONT:
Agricultural:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 1102 mm (43.4″) 1102 mm (43.4″)
Turf:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 1151 mm (45.3″) 1151 mm (45.3″)
Industrial:
FWD . . . . . . . . . . . . . . . . . . . . . . . . . . . 1151 mm (45.3″) 1151 mm (45.3″)
REAR:
Agricultural 11.2 x 24 . . . . . . . . . . . . . . 1087 mm - 1217 mm 1087 mm - 1217 mm
(FWD) (42.8″-47.9″) (42.8″-47.9″)
Turf 13.6 x 16 . . . . . . . . . . . . . . 1120 mm-1184 mm 1120 mm-1184 mm
(FWD) (44.1″-46.6″) (44.1″-46.6″)
Industrial 15 x 19.5 . . . . . . . . . . . . . . 1184 mm (46.6″) 1184 mm (46.6″)
(FWD)
WEIGHT:
With ROPS:
FWD (HST) . . . . . . . . . . . . . . . . . . . . . 1124.5 kg (2474 lbs.) 1131.3 kg (2514 lbs.)
FWD (GEAR) . . . . . . . . . . . . . . . . . . . . 1060.8 kg (2304 lbs.) 1054.8 kg (2344 lbs.)
SuperSteer (HST) . . . . . . . . . . . . . . . . 1176.4 kg (2588 lbs.) 1182.6 kg (2628 lbs.)
SuperSteer (HST) . . . . . . . . . . . . . . . . 1112.7 kg (2418 lbs.) 1106.7 kg (2458 lbs.)
00-21
MINIMUM HARDWARE TIGHTENING TORQUES

IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS
INCH HARDWARE AND LOCKNUTS

SAE GRADE 2 SAE GRADE 5 SAE GRADE 8 LOCKNUTS
NOMINAL UNPLATED PLATED UNPLATED PLATED UNPLATED PLATED GR.B GR.C NOMINAL
SIZE or W/ZnCr or W/ZnCr or W/ZnCr w/GR5 w/GR8 SIZE
PLATED PLATED PLATED BOLT BOLT
SILVER GOLD SILVER GOLD SILVER GOLD
1/4 55* (6.2) 72* (8.1) 86* (9.7) 112* (13) 121* (14) 157* (18) 61* (6.9) 86* (9.8) 1/4
5/16 115* (13) 149* (17) 178* (20) 229* (26) 250* (28) 324* (37) 125* (14) 176* (20) 5/16
3/8 17 (23) 22 (30) 26 (35) 34 (46) 37 (50) 48 (65) 19 (26) 26 (35) 3/8
7/16 27 (37) 35 (47) 42 (57) 54 (73) 59 (80) 77 (104) 30 (41) 42 (57) 7/16
1/2 42 (57) 54 (73) 64 (87) 83 (113) 91 (123) 117 (159) 45 (61) 64 (88) 1/2
9/16 60 (81) 77 (104) 92 (125) 120 (163) 130 (176) 169 (229) 65 (88) 92 (125) 9/16
5/8 83 (112) 107 (145) 128 (174) 165 (224) 180 (244) 233 (316) 90 (122) 127 (172) 5/8
3/4 146 (198) 189 (256) 226 (306) 293 (397) 319 (432) 413 (560) 160 (217) 226 (306) 3/4
7/8 142 (193) 183 (248) 365 (495) 473 (641) 515 (698) 667 (904) 258 (350) 364 (494) 7/8
1 213 (289) 275 (373) 547 (742) 708 (960) 773 (1048) 1000 (1356) 386 (523) 545 (739) 1
NOTE: Torque values shown with * are inch pounds.

IDENTIFICATION
CAP SCREWS AND CARRIAGE BOLTS
SAE GRADE 2 SAE GRADE 5 SAE GRADE 8
REGULAR NUTS SAE GRADE 5 SAE GRADE 8

HEX NUTS HEX NUTS
LOCKNUTS
GRADE IDENTIFICATION GRADE IDENTIFICATION

GRADE A NO NOTCHES GRADE A NO MARKS
GRADE B ONE CIRCUMFERENTIAL NOTCH GRADE B THREE MARKS
GRADE C TWO CIRCUMFERENTIAL NOTCHES GRADE C SIX MARKS

MARKS NEED NOT BE LOCATED
AT CORNERS
GRADE A NO MARK
GRADE B LETTER B
GRADE C LETTER C
GRADE IDENTIFICATION
00-22
MINIMUM HARDWARE TIGHTENING TORQUES

IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS
METRIC HARDWARE AND LOCKNUTS

CLASS 5.8 CLASS 8.8 CLASS 10.9 LOCKNUT
NOMINAL CL.8
SIZE UNPLATED PLATED UNPLATED PLATED UNPLATED PLATED W/CL8.8
W/ZnCr W/ZnCr W/ZnCr BOLT
M4 15* (1.7) 19* (2.2) 23* (2.6) 30* (3.4) 33* (3.7) 42* (4.8) 16* (1.8)
M6 51* (5.8) 67* (7.6) 79* (8.9) 102* (12) 115* (13) 150* (17) 56* (6.3)
M8 124* (14) 159* (18) 195* (22) 248* (28) 274* (31) 354* (40) 133* (15)
M10 21 (28) 27 (36) 32 (43) 41 (56) 45 (61) 58 (79) 22 (30)
M12 36 (49) 46 (63) 55 (75) 72 (97) 79 (107) 102 (138) 39 (53)
M16 89 (121) 117 (158) 137 (186) 177 (240) 196 (266) 254 (344) 97 (131)
M20 175 (237) 226 (307) 277 (375) 358 (485) 383 (519) 495 (671) 195 (265)
M24 303 (411) 392 (531) 478 (648) 619 (839) 662 (897) 855 (1160) 338 (458)
NOTE: Torque values shown with * are inch pounds.

IDENTIFICATION
HEX CAP SCREW AND CARRIAGE BOLTS
CLASSES 5.6 AND UP
MANUFACTURER’S IDENTIFICATION
PROPERTY CLASS
HEX NUTS AND LOCKNUTS

CLASSES 05 AND UP
MANUFACTURER’S IDENTIFICATION
PROPERTY CLASS CLOCK MARKING
00-23
LUBRICATION AND MAINTENANCE

Op. 00 400
LUBRICATION
Adequate lubrication and maintenance on a regular
schedule is vital to maintaining your equipment. To
ensure long service and efficient operation, follow the
lubrication and maintenance schedules outlined in
this manual. The use of proper fuels, oils, grease and
filters, as well as keeping the systems clean, will also
extend machine and component life.
IMPORTANT: Always use genuine New Holland

replacement parts, oils and filters to ensure proper
operation, filtration of engine and hydraulic systems.
See your New Holland dealer for additional oil
quantities.
00-24
Lubricant Type and Description Part Number Container Size

Engine Oil AMBRA SUPER GOLD SSL ENGINE OIL SAE 10W--40 86994335 2.5G / 9.46L
AMBRA SUPER GOLD HSP ENGINE OIL SAE 10W 86641050 5G / 18.93L
AMBRA SUPER GOLD HSP ENGINE OIL SAE 10W--30 9613313 1QT / .946L
86641052 1G / 3.785L
9613314 2.5G / 9.46L
9673508DS 5G / 18.93L
AMBRA SUPER GOLD HSP ENGINE OIL SAE 30 9613286 1QT / .946L
86641043 1G / 3.785L
9613289 2.5G / 9.46L
86641044 5G / 18.93L
AMBRA SUPER GOLD HSP ENGINE OIL SAE 40 9624812DS 55G / 208.2L
AMBRA SUPER GOLD HSP ENGINE OIL SAE 15W--40 86641081 1QT / .946L
86641082 1G / 3.785L
86641084 2.5G / 9.46L
86641083 5G / 18.93L
AMBRA SUPER GOLD HSP ENGINE OIL SAE 20W--50 86994337 5G / 18.93L
AMBRA AUTO SUPREME SAE 5W--30 9673589DS 1QT / .946L
AMBRA AUTO SUPREME SAE 10W--30 86641101 1QT / .946L
Transmission Oil AMBRA MULTI TRAN 86639558 1G / 3.785L
86639559 2.5G / 9.46L
86639560 5G / 18.93L
F200 Cold Weather Use 86523625DS 1G / 3.785L
86523626DS 5G / 18.93L
AMBRA MULTI TRAN SSL 86994339 2.5G / 9.46L
AMBRA MULTI BIO S 86994341 2.5G / 9.46L
Hydraulic Oil AMBRA MULTI G 134 9624655DS 1QT / .946L
9624656DS 1G / 3.785L
9624450 2.5G / 9.46L
9624451 5G / 18.93L
F200 Cold Weather Use 86523625DS 1G / 3.785L
86523626DS 5G / 18.93L
AMBRA HYDROSYSTEM 46 HYD FLUID 86109085 5G / 18.93L
ATF Oil AMBRA HYDRODEX 3 ATF 9613304 1QT / .946L
9613312 2.5G / 9.46L
Gear Oil AMBRA HYPOIDE 90 GEAR LUBE 9613295 1QT / .946L
9613294 2.5G / 9.46L
86994348 16G / 60.6L
AMBRA HYPOIDE 140 GEAR LUBE 87027134* 1QT / .946L
87027135 2.5G / 9.46L
86994351 16G / 60.6L
AMBRA TRANSAXLE FLUID 86994352 5G / 18.93L
AMBRA HYPOIDE SSL GEAR LUBE 86994354 1QT / .946L
Grease AMBRA GR--9 MULTI--PURPOSE GREASE 9613310 TUBE -- 14 OZ.
AMBRA HI--TEMP GREASE 9861804DS TUBE -- 14 OZ.
AMBRA CORN HEAD GREASE 94107DS TUBE -- 14 OZ.
AMBRA GR 75 MD GREASE 87400001 TUBE -- 14 OZ.
AMBRA GR 1000 SYNTHETIC GREASE 86994355 TUBE -- 14 OZ.
LIMITED SLIP ADDITIVE B96606
Brake Fluid BRAKE LHM FLUID ( Mineral Based Oil) 86541699DS 1QT / .946L
Coolant ESE--M97B18--D, Ethylene Glycol Coolant Concentrate FGCC2701DS 1G / 3.785L
Propylene Glycol Concentrate FGCC2711DS 1G / 3.785L
00-25
LIQUID BALLAST (OPTIONAL) Tires should never be filled beyond 75%. At 75% full,
It is a common practice to add weight to the tractor by the liquid will come to the valve stem when the valve
filling the rear tires with liquid. A calcium chloride stem is at its highest point at the top of the wheel.
(CaCl2) and water solution is recommended due to
its low freezing point and greater density (weight per TIRE PRESSURE
gallon) than pure water. Tire pressure must be considered when adding
weights, implements, or attachments to the tractor or
Never exceed the total recommended weight for the damage to the tractor may occur.
tractor. Because special equipment is required to fill
the tires, consult your New Holland Dealer. The chart below outlines tire inflation pressures.
FRONT TIRE INFLATION PRESSURES
Tire Type Tire Size Inflation Pressure
Agricultural:
FWD 7-14, 4PR, R1 0.6-1.8 bar (8-26 PSI)
Turf:
FWD 24 x 8.50-14, 4PR, R3 0.6-15 bar (8-22 PSI)
25/10.50LL x 15 - 6PR, R3 0.6 bar (8 PSI)
Industrial (R4) 25 x 8.50-14, 6PR, R4 0.6-2.2 bar (8-32 PSI)
REAR TIRE INFLATION PRESSURES
Agricultural 11.2-24, 4PR, R1 0.8-1.2 bar (12-18 PSI)
Turf 13.6-16, 4PR, R3 0.8-1.0 bar (12-14 PSI)
41/18LL x 16.1, 6 PR, R3 0.4 bar (6 PSI)
Industrial (R4) 15-19.50, 6PR, R4 0.8-1.4 bar (12-20 PSI)
NOTE: Do not underinflate or overinflate tires. Do not exceed maximum inflation pressure listed.
REAR TIRE LIQUID

Ballast Weights (Per Tire) 600 g/5 lbs. Gal Solution/CaCl2
Tire Type Tire Size Approximate Added Weight
Agricultural 11.2 x 24, 4PR, R1 115 Kg (253 lbs.)
Turf 13.6 x 16, 4PR, R3 151 Kg (333 lbs.)

41/18LL x 16.1, 6PR, R3 NA
Industrial (R4) 19.50 x 15, 6PR, R4 152 Kg (334 lbs.)
00-26
SECTION 10 - ENGINE - CHAPTER 1
SECTION 10 - ENGINE
Chapter 1 - Engine Systems
CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Engine Bolt Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Engine Fuel System Bolt Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Metric Bolt Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compression Test and Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Description of Operation -- General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cylinder Head and Valve Train Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cylinder Block Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Fuel Injector and Glow Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Oil Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Temperature Sending Switch and Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Fan, Water Pump and External Oil Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Head Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Rocker Arm Shaft and Support Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10 101 Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Valve Tappet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Fuel Shutoff Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Timing Gear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10-1

10 106 Timing Gears and Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10 102 Oil Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Oil Suction Pipe and Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Connecting Rods, Bearings, Pistons and Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10 103 Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Backplate and Oil Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Crankshaft and Main Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
10 101 Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Valve Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Inspection and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Valve Guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Valve Springs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Rocker Arms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Push Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Cylinder Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
10 105 Pistons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Disassembly and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Piston Rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
10-2

Connecting Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Connecting Rod Bearing Oil Clearance Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Pistons, Rings and Connecting Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
10 103 Main Bearing and Thrust Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Removal and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Crankshaft Bearing (Bushing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Crankshaft Main Bearing and Thrust Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Port Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10 106 Timing Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Camshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10 103 Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
10 102 Timing Gear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Front Oil Seal and Steering Pump Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
10 103 Crankshaft and Bearing Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Rear Oil Seal and Backplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
10 105 Pistons and Connecting Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Oil Suction Pipe and Suction Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10-3

Oil Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10 106 Camshaft and Camshaft Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
10 106 Idler Gear, Oil Pump and Injection Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Timing Gear Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Crankshaft Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Fuel Injection Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Power Steering Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
10 101 Head Gasket Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
10 106 Valve Clearance Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Head Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Water Pump and Cooling Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
External Oil Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Glow Plug and Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Fuel Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
10 218 Fuel Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Alternator and Temperature Sender Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Exhaust Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10-4

10 304 Description of Operation -- Engine Lubrication System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
10 206 Oil Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Construction and Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10 304 Oil Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Installation and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Engine Oil Pressure Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Oil Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Oil Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
10 400 Description of Operation -- Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Radiator Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
10 402 Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10 402 Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10 414 Cooling Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
10 406 Radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
10 402 Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
10 402 Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
10-5
SPECIFICATIONS
GENERAL TC29DA TC33DA

Net Engine DIN in Kw(Hp) 21.3 (28.6) 24.0 (32.3)
Gross Engine in Kw(Hp) 21.6 (29.0) 24.6 (33.0)
PTO in Kw(Hp)
w/9 x 3 18.7 (25.1) 21.7 (29.1)
w/HST 17.6 (23.6) 20.1 (26.9)
Engine Model J843 N843
Number of Cylinders 3 3
Bore x Stroke in mm (in.) 84 x 80 (3.31 x 3.15) 84 x 90 (3.31 x 3.54)
Displacement in L(In3) 1.33(81.2) 1.50(91.3)
Compression Ratio 22.7 22.5:1
Rated Speed in rpm 2800 2800
Muffler Location Under Hood Under Hood
Firing Order 1-2-3 1-2-3
Low Idle Speed in rpm 1000 1000
High Idle Speed in rpm 3040 3040
Cylinder Arrangement In-line Vertical In-line Vertical
Valve Arrangement Overhead Overhead
CYLINDER BLOCK TC29DA TC33DA
84 - 84.019 84 - 84.019
Bore Standard in mm (in.)
(3.307 - 3.308) (3.307 - 3.308)
Bore Maximum in mm (in.) 84.2 (3.315) 84.2 (3.315)
Head Surface Warp Standard in mm (in.) 0.05 (0.002) 0.05 (0.002)
Head Surface Warp Maximum in mm (in.) 0.12 (0.005) 0.12 (0.005)
10-6
CYLINDER HEAD TC29DA TC33DA

Head Ward in mm (in.)
Standard 0.05 (0.002) 0.05 (0.002)
Maximum 0.12 (0.005) 0.12 (0.005)

Valve Seat Width in mm (in.)
1.2 - 1.8 1.2 - 1.8
Standard (0.047 - 0.071) (0.047 - 0.071)
Maximum 2.5 (0.098) 2.5 (0.098)

PISTON TC29DA TC33DA
Valve Seat Sink in mm (in.)
0.85 - 1.15 0.85 - 1.15
Standard (0.0334 - 0.0453) (0.0334 - 0.0453)
Maximum 1.8 (0.071) 1.8 (0.071)

Valve Angle 45° 45°
Diameter in mm (in.)
83.948 - 83.963 83.948 - 83.963
Standard (3.3050 - 3.3056) (3.3050 - 3.3056)
Minimum 83.7 (3.2593) 83.7 (3.2593)

Bore Clearance in mm (in.)
0.088 - 0.106 0.088 - 0.106
Standard (0.0034 - 0.0041) (0.0034 - 0.0041)
Maximum 0.3 (0.0118) 0.3 (0.0118)

Piston Pin Bore in mm (in.)
24.999 - 25.003 27.999 - 28.003
Standard (0.984 - 0.9843) (1.10231 - 1.1025)
Maximum 25.0 (0.0985) 28.02 (1.1031)

Piston Pin Clearances in mm (in.)
--0.001 +0.007 --0.002 +0.008
Standard (0 - 0.0002) (--0.00008 +0.0003)
Maximum 0.02 (0.0008) 0.02 (0.0008)
10-7
PISTON PIN TC29DA TC33DA

Diameter in mm (in.)
24.996 - 25.0 27.996 - 28.0
Standard (0.984 - 0.9843) (1.1022 - 1.1024)
Maximum 24.98 (0.9834) 27.97 (1.1012)

Pin-to-Bushing Clearance in mm (in.)
0.01 - 0.25 0.01 - 0.25
Standard (0.0004 - 0.001) (0.0004 - 0.001)
Maximum 0.08 (0.0031) 0.08 (0.0031)

PISTON RING END GAP TC29DA TC33DA
1st Compression in mm (in.)
0.2 - 0.35 0.2 - 0.35
Standard (0.008 - 0.014) (0.008 - 0.014)
Maximum 1.0 (0.03937) 1.0 (0.03937)

2nd Compression in mm (in.)
0.20 - 0.40 0.20 - 0.40
Standard (0.008 - 0.016) (0.008 - 0.016)
Maximum 1.0 (0.03937) 1.0 (0.03937)

Oil Ring in mm (in.)
0.20 - 0.40 0.20 - 0.40
Standard (0.008 - 0.016) (0.008 - 0.016)
Maximum 1.0 (0.03937) 1.0 (0.03937)

PISTON RING COMPRESSION RING
TC29DA TC33DA
TO GROOVE SIDE CLEARANCE
1st Compression in mm (in.)
0.07 - 0.11 0.07 - 0.11
Standard (0.0027 - 0.0043) (0.0027 - 0.0043)
Maximum 0.25 (0.010) 0.25 (0.010)

2nd Compression in mm (in.)
0.04 - 0.08 0.04 - 0.08
Standard (0.0015 - 0.0031) (0.0015 - 0.0031)
Maximum 0.25 (0.010) 0.25 (0.010)

Oil Ring in mm (in.)
0.02 - 0.06 0.02 - 0.06
Standard (0.0008 - 0.0024) (0.0008 - 0.0024)
Maximum 0.15 (0.006) 0.15 (0.006)
10-8
PISTON RING WIDTH TC29DA TC33DA

1st Compression in mm (in.) 1.97 - 1.98 1.97 - 1.98
(0.077 - 0.078) (0.077 - 0.078)
2nd Compression in mm (in.) 1.47 - 1.48 1.47 - 1.48
(0.058 - 0.059) (0.058 - 0.059)
Oil Ring in mm (in.) 2.97 - 2.99 2.97 - 2.99
(0.1169 - 0.1177) (0.1169 - 0.1177)
CONNECTING ROD TC29DA TC33DA
Rod Twist in mm (in.)
Standard 0.08 (0.003) 0.08 (0.003)
Maximum 0.2 (0.008) 0.2 (0.008)

Rod Bend in mm (in.)
Standard 0.05 (0.002) 0.05 (0.002)
Maximum 0.15 (0.006) 0.15 (0.006)

Rod Side Play in mm (in.)
0.1 - 0.3 0.1 - 0.3
Standard (0.004 - 0.012) (0.004 - 0.012)
Maximum 0.7 (0.028) 0.7 (0.028)

Crankshaft Bearing Clearance in mm (in.)
0.035 - 0.085 0.035 - 0.085
Standard (0.001 - 0.003) (0.001 - 0.003)
Maximum 0.2 (0.008) 0.2 (0.008)

CRANKSHAFT TC29DA TC33DA
Journal Diameter in mm (in.)
57.597 - 57.97 67.951 - 67.97
Standard (2.282 - 2.282) (2.675 - 2.6759)
Minimum 57.4 (2.259) 67.4 (2.654)

Crankpin Diameter in mm (in.)
43.96 - 43.97 51.964 - 51.975
Standard (1.730 - 1.731) (2.0458 - 2.0463)
Minimum 43.4 (1.708) 51.4 (2.0236)

Runout in mm (in.)
0.03 (0.0012) 0.02 (0.0008)
Standard
0.06 (0.0024) 0.05 (0.002)
Maximum
10-9
CAMSHAFT TC29DA TC33DA

Cam Height - Valve mm (in.)
34.45 - 35.01 34.45 - 35.01
Standard (1.356 - 1.378) (1.356 - 1.378)
Minimum 34.0 (1.339) 34.0 (1.339)

Bend in mm (in.)
Standard 0.03 (0.001) 0.03 (0.001)
Maximum 0.1 (0.004) 0.1 (0.004)

Cam Height - Fuel mm (in.)
42.94 - 43.06 42.94 - 43.06
Standard (1.691 - 1.695) (1.691 - 1.695)
Minimum 42.8 (1.685) 42.8 (1.685)

VALVES TC29DA TC33DA
Stem Diameter - Intake in mm (in.)
6.955 - 6.97 6.955 - 6.97
Standard (0.2738 - 0.2744) (0.2738 - 0.2744)
Minimum 6.89 (0.271) 6.89 (0.271)

Stem Diameter - Exhaust in mm (in.)
6.94 - 6.95 6.94 - 6.95
Standard (0.273 - 0.274) (0.273 - 0.274)
Minimum 6.84 (0.269) 6.84 (0.269)

Guide Clearance - Intake in mm (in.)
0.03 - 0.06 0.03 - 0.06
Standard (0.001 - 0.002) (0.001 - 0.002)
Maximum 0.2 (0.008) 0.2 (0.008)

Guide Clearance-Exhaust in mm (in.)
0.04 - 0.065 0.04 - 0.065
Standard (0.002 - 0.003) (0.002 - 0.003)
Maximum 0.25 (0.010) 0.25 (0.010)

Valve Margin in mm (in.)
0.925 - 1.075 0.925 - 1.075
Standard (0.0364 - 0.0423) (0.0364 - 0.0423)
Maximum 0.5 (0.0197) 0.5 (0.0197)

Valve Lash in mm (in.) 0.2(0.008) 0.2(0.008)
Valve Spring-Free Height in mm (in.)
Standard 35 (1.378) 35 (1.378)
Minimum 33.5 (1.319) 33.5 (1.319)
10-10
VALVES TC29DA TC33DA

Valve Spring-Squareness in mm (in.)
Standard 1.2 (0.047) 1.2 (0.047)
Maximum 2.0 (0.070) 2.0 (0.070)

Valve Spring-Compressed Height in mm (in.)
Standard @ 8.1Kg (17.86Lb) 30.4 (1.20) 30.4 (1.20)
Maximum @ 7Kg (15.43Lb) 30.4 (1.20) 30.4 (1.20)

Valve Timing-Intake
Open Before TDC 10° 10°
Close After BDC 46° 46°

Valve Timing-Exhaust
Open Before TDC 46° 46°
Close After BDC 16° 16°

PUSH RODS TC29DA TC33DA
Length in mm (in.) 177.6 - 178 205.1 - 205.9
(6.992 - 7.008) (8.075 - 8.106)
Diameter in mm (in.) 6.3 (0.248) 6.3 (0.248)

ROCKER ARM TC29DA TC33DA
Shaft Diameter in mm (in.)
11.65 - 11.668 14.95 - 14.968
Standard (0.4587 - 0.4594) (0.5886 - 0.5893)
Minimum 11.57 (0.456) 14.87 (0.585)

Shaft to Rocker Clearance in mm (in.)
0.032 - 0.068 0.032 - 0.068
Standard (0.0013 - 0.0027) (0.0013 - 0.0027)
Maximum 0.2 (0.008) 0.2 (0.008)
10-11
LUBRICATION SYSTEM TC29DA TC33DA

Relief Valve - Opening Pressure in Bar(Psi) 2.4 - 3.4 (35 - 50) 2.4 - 3.4 (35 - 50)
Rotor to Vane Clearance in mm (in.)
0.1 - 0.15 0.1 - 0.15
Standard (0.004 - 0.006) (0.004 - 0.006)
Maximum 0.25 (0.010) 0.25 (0.010)

Rotor to Cover Clearance in mm (in.)
0.1 - 0.15 0.1 - 0.15
Standard (0.004 - 0.006) (0.004 - 0.006)
Maximum 0.20 (0.008) 0.20 (0.008)

Rotor to Case Clearance in mm (in.)
0.14 - 0.22 0.14 - 0.22
Standard (0.006 - 0.009) (0.006 - 0.009)
Maximum 0.30 (0.12) 0.30 (0.12)
10-12
COOLING SYSTEM ALL MODELS

Type of System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressurized liquid w/recirculating by-pass
Water Pump:
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V-belt
Belt Deflection (tension) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 to 10 mm (0.197 to 0.394 in.) when
5 kg - (11 lbs.) is applied
midway between pulleys
Fan Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340 mm (13.4 in.)
Thermostat:
Starts to Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C (180°F)
Fully Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95°C (203°F)
Radiator Cap Pressure

Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9 bar (13 psi)
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ethylene glycol and water in a 50/50 mixture
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.6 Liters (5.9 Qts.)
10-13
ENGINE BOLT TORQUE SPECIFICATIONS

Tractor Model TC29DA/TC33DA
Engine Model J843/N843
Connecting Rod Cap Nuts 49 – 54 N⋅m
(36 – 40 ft. lbs.)
Main Bearing Retaining Bolts 49 – 54 N⋅m
(36 – 40 ft. lbs.)
Relief Valve Assembly 55 -- 69 N⋅m
(43 – 51 ft. lbs.)
Crankshaft Main Bearing Holder Bolts
Rear Main (Socket Head Bolts) 25 – 29 N⋅m

(18 – 22 ft. lbs.)
Center Main (Hex Head Bolts)
49 – 54 N⋅m
(36 – 40 ft. lbs.)
Engine Rear Mounting Plate 12 – 17 N⋅m
(9 – 12 ft. lbs.)
Flywheel Retaining Bolts 69 – 78 N⋅m
(51 – 58 ft. lbs.)
Engine Front Plate 9 – 12 N⋅m
(6 – 9 ft. lbs.)
Crankshaft Pulley Nut 274 – 333 N⋅m
(202 – 246 ft. lbs.)
Cylinder head Bolt 98 – 103 N⋅m
(72 – 76 ft. lbs.)
Rocker Arm Assembly 27 – 39 N⋅m
(20 – 29 ft. lbs.)
Rocker Arm Locknut 12 – 16 N⋅m
(9 – 12 ft. lbs.)
Oil Tube Banjo Bolt 10 – 13 N⋅m
(7 – 9 ft. lbs.)
Oil Pressure Switch 14 – 20 N⋅m
(11 – 14 ft. lbs.)
Rocker Cover Bolts 7 – 12 N⋅m
(6 – 9 ft. lbs.)
Glow Plugs 15 – 20 N⋅m
(11.1 – 15 ft. lbs.)
Cooling Fan Bolts 9 – 13 N⋅m
(6.5 – 9.4 ft. lbs.)
ENGINE FUEL SYSTEM BOLT TORQUE SPECIFICATIONS

Tractor Model TC29DA/TC33DA
Engine Models J843/N843
Delivery Valve Holder 39 – 44 N⋅m
(29 – 32.5 ft. lbs.)
Injector Assembly 59 – 69 N⋅m
(43 – 51 ft. lbs.)
10-14
METRIC BOLT TORQUE SPECIFICATIONS
Coarse Thread Fine Thread

Bolt Grade Foot Newton Foot Newton
Size No. Pitch (mm) Pounds Meters Pitch (mm) Pounds Meters
4T, 4.8 3.6--5.1 4.9--6.9
M6 7T, 8T, 8.8 1.0 6.1--8.3 8.3--11.3
10T, 11T 8.6--11.6 11.7--15.7
4T, 4.8 9.4--12.3 12.7--16.7 11.2--14.9 15.2--20.2
M8 7T, 8T, 8.8 1.25 16.7--21.0 22.6--28.4 1.0 19.6--25.3 26.5--34.3
10T, 11T 21.0--26.8 28.5--36.3 22.4--29.7 30.4--40.2
4T, 4.8 18.8--24.6 25.5--33.3 21.0--26.8 28.5--36.3
M10 7T, 8T, 8.8 1.5 32.5--41.3 44.1--55.9 1.25 36.2--46.3 49.0--62.8
10T, 11T 39.8--51.3 54.0--69.6 42.7--54.2 57.9--73.5
4T, 4.8 27.5--34.8 37.3--47.1 31.8--40.5 43.1--54.9
M12 7T, 8T, 8.8 1.75 48.5--61.5 65.7--83.3 1.25 54.9--69.4 74.5--94.1
10T, 11T 68--85.6 92--116 73.1--93.7 99--127
4T, 4.8 46.3--59.3 62.8--80.4 51.4--64.4 69.7--87.3
M14 7T, 8T, 8.8 2.0 76.8--97.4 104--132 1.5 85.6--109 116--148
10T, 11T 102.6--129 139--175 110--136 149--185
4T, 4.8 63.5--81.2 86--110 67.2--84.9 91--115
M16 7T, 8T, 8.8 2.0 110--136.5 149--185 1.5 116--142 157--193
10T, 11T 151.3--188 205--255 162--199 220--270
4T, 4.8 83.4--104 113--141 96.7--120 131--163
M18 7T, 8T, 8.8 2.0 145--174 196--236 1.5 169--206 230--280
10T, 11T 203--246 275--333 220--270 299--367
4T, 4.8 106--133 144--180 126--155 171--211
M20 7T, 8T, 8.8 2.5 177--214 240--290 1.5 203--245 275--333
10T, 11T 268--252 363--341 293--358 397--485
10-15
SPECIAL TOOLS
Tool No. Description

FNH00120 Adapter -- Compression Tester
FNH02154 Compression Test Gauge Assembly
FNH00117 Port Block Installer
FNH11097 Port Block Remover
FNH00011 Oil Pressure Test Fitting
Micrometer, Outside 0-1 inch
Micrometer, Inside 3/4-1 inch
Micrometer, Inside 2-3 inch
Micrometer, Inside 1-2 inch
COMPRESSION TEST AND TOOLS

Compression test is performed through the glow plug
ports. The test adapter tool, 1, is equipped with quick
coupler ends for easy installation of the hose and
gauge.
1
The procedures to perform a compression test are as
follows:
1. Remove the wire lead from the fuel injection

pump solenoid.
2. Remove the glow plug electrical wire and wire
connector from top of the glow plugs.
1
3. Remove all of the glow plugs.
IMPORTANT: Be sure all the glow plugs are
removed before starting the compression tests.
4. Install the adapter Tool No. NH 00120, hose and

gauge assembly in each port and crank the engine
until pressure stabalizes. The gauge should read
29.5 bar (427 psi) plus or minus 3.5 bar (50 psi).
NOTE: It may be necessary to remove some injector
fuel lines to install the adapter tool.
NOTE: There should not be more than 3.5 bar (50 psi)
variation between the cylinders.
5. When all three cylinders have been tested, rein- 2

stall the glow plugs and electrical connections.
10-16
DESCRIPTION OF OPERATION -- GENERAL INFORMATION
This chapter describes the engine overhaul and

repair procedures of the Models TC29DA and
TC33DA tractors. Repair procedures are essentially
the same for all models except as noted in the repair
procedures.
The tractors are equipped with three-cylinder in-line
engines. They are all four cycle, overhead valve,
liquid cooled engines. The engines are identified by
a code, 1, cast into the lower right side of the cylinder 1
block.
2
NOTE: Numeric value, 2, under the Engine Code
indicates displacement of the engine in liters.
Engine Tractor Engine Power

Identification Model Hp (Kw)
J843 TC29DA 29 (21.6)
N843 TC33DA 33 (24.6)
3
10-17
CYLINDER HEAD AND VALVE TRAIN

COMPONENTS
The cylinder head incorporates the valve assem-
blies, rocker arms, rocker shaft, push rods, and
lifters. A swirl chamber located between the injector
assembly and the main combustion chamber of the
cylinders provides improved starting and greater fuel
efficiency. Initial combustion starts in the precombus-
tion chamber and as the expansion occurs a strong
swirl pattern is created in the main combustion
chamber for more complete combustion of the
air-fuel mixture. The air intake manifold is built in the
cast aluminum valve cover on all these engines.
The breather valve is located on the valve cover. The

valve opens when the crank housing pressure rises
and the gas runs away to the intake manifold. The
gas flows into the cylinder and is exhausted as
exhaust fumes. The exhaust manifold is bolted on
the left-hand side of the cylinder head on each of the
models. Cylinder heads have integral valve guides.
Standard size valves only are used. Figure 4
provides a cut-away front view of an engine.
CYLINDER BLOCK ASSEMBLY

The cylinder block assembly contains the pistons,
connecting rods, crankshaft, timing gears, and
engine oil pump. The crankshaft is supported on four
main bearings. The front bearing is positioned in a
bore in front of the block. The second, third, and
fourth bearings are split liners located in holders
bolted to the block. The camshaft is supported on two
ball bearings located on each end of the block.
Figure 5 provides a cutaway side view of the engine.
NOTE: Due to Pollutant Regulations, some of parts

relating to Engine exhaust (cylinder block, over size
piston etc.) are not available for spares as an
individual part.
If necessary, replace with long block assembly.
10-18
20043767
20043768
10-19
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTION

Engine does not develop Clogged air cleaner Inspect and replace air cleaner if
full power necessary
Fuel line obstructed Check for crimped fuel line. Inspect
fuel filter for cleanliness
Improper injection timing Repair/ replace components as
required
Improper nozzle injection pressure Check injection timing
and angle Inspect for proper injection pressure
an angle
Low cylinder compression Check engine compression
Insufficient fuel injection Repair at authorized shop
Improper valve lash adjustment Adjust valves to correct tolerances
Burned, worn or sticking valves Inspect and replace as necessary
Blown head gasket Replace head gasket
Worn or sticking piston rings Overhaul as necessary
Faulty engine stop solenoid Replace stop solenoid
Low oil pressure Engine oil level low Fill to proper level
Wrong grade of oil Replace with correct grade oil
Clogged oil pump filter Change oil and filter
Faulty oil pressure relief valve Replace relief valve
Worn oil pump drive shaft gears
gears, or Inspect oil system and components
components.
broken oil pipe Replace defective components
Excessive main or connecting rod Replace bearings or shaft if
bearing clearances necessary
Oil pump axial clearance not properly Check pump clearance and shim as
set needed to proper tolerance
Engine will not stop Faulty engine stop solenoid Replace the stop solenoid
Faulty starter switch Replace starter switch
Low cylinder compression Burned, worn or sticking valves Replace valves
Bent valve stem Replace valves
Broken or weak valve spring Replace valve spring
Blown cylinder head gasket Replace head gasket
Worn or sticking piston rings Replace piston rings
Scored piston Replace piston
Poor engine idling Improper injection timing Correct the injection timing
Air in injection pump Purge air from the system
Improper governor adjustment Adjust the governor
10-20

Oil pressure warning light Bulb burnt out Replace the bulb
fails to operate
Oil pressure sensor is faulty Replace oil pressure sensor
Warning light circuit faulty Replace warning light circuit
Engine knocks Diluted or thin oil Change engine oil and filter
Insufficient oil supply Check engine oil level
Low oil pressure Inspect lube system for restrictions
Worn crankshaft thrust bearing Replace relief valve
Excessive flywheel runout Replace thrust bearing
Excessive connecting rod or main Replace flywheel
bearing clearance Replace bearings
Seized bearing Replace bearing and affected
component if necessary
Clogged oil passage Clean out oil passages
Bent or twisted connecting rod Replace connecting rod
Crankshaft journals out of round Rework or replace crankshaft
Excessive piston to cylinder bore Replace piston with long block
clearance assembly
Excessive piston ring side clearance Replace piston rings
Broken or damaged ring Replace piston ring
Excessive piston pin clearance Replace piston pin or bushing
Seized piston Replace piston and, if necessary,
engine block
Piston pin retainer loose or missing Replace retainer
Improper valve lash adjustment Adjust valve lash to specification
Worn valve lifter Replace valve lifter
Excessive timing gear backlash Replace all timing gears
Excessive oil consumption Engine oil level too high Remove excess oil
Leakage in cylinder head gasket Replace head gasket
Oil loss past the pistons and rings Replace piston rings
Worn, broken, or sticking piston rings Replace piston rings
Cl
Clogged
d return
t hole
h l off oilil ring
i Unclog
U l return
t oilil hole
h l and
d replace
l
rings
Worn valves, guides, or seals Replace valves, guides, or seals
Leakage past oil seals and gaskets Replace leaking seals and gaskets
External oil leaks from engine Locate leaks and repair
10-21

Engine overheats Insufficient amount of coolant in the Fill coolant to proper level
radiator
Hose connection leaking or collapsed Tighten hose connection or replace
hose hose
Radiator leakage Locate leak and repair or replace
radiator
Loose, worn, or broken V-belt Adjust V-belt tension or replace belt
Radiator fins bent or clogged Straighten out and clean fins
Radiator cap not sealing Replace radiator cap
Thermostat operating improperly Replace thermostat cap
Insufficient amount of oil Fill to proper level
Water pump operating improperly Replace water pump
Improper valve clearance Adjust valve clearance to specification
Restriction in exhaust system Remove restriction
Improperly installed cylinder head Reinstall head gasket in proper
gasket position
Rust and/or scale clogged water ports Backflush cooling system
Extended engine idling Shutdown engine during extended
idling periods
Temperature gauge fails to Faulty temperature sender Replace temperature switch
reach normal operating
temperature Faulty thermostat Replace thermostat
Faulty temperature gauge Replace temperature gauge
10-22

Engine does not start Faulty starter switch Replace switch
Insufficient charging or complete Check battery and charging system.
discharge of battery
Lack of fuel Fill fuel tank
Air mixed in fuel system Inspect fuel system for tightness
Clogged fuel filter Replace fuel filter
Irregular or faulty fuel supply Replace fuel supply
Glow plug not heating Replace glow plug
Improper lubricating oil viscosity Replace lube oil
Clogged air cleaner Replace air cleaner
Faulty engine stop solenoid Replace solenoid
Burned out fuse Replace fuse
Excessive exhaust smoke Air cleaner dirty or restricted Replace air cleaner
Excessive fuel delivery Adjust fuel delivery
Engine stops while Lack of fuel in fuel tank Fill fuel tank
operating
Clogged fuel filter Replace filter
Air mixed in fuel system Inspect for air leaks
Faulty engine stop solenoid Replace solenoid
Burned out fuse Replace fuse
Undesirable exhaust color Unsuitable fuel Replace fuel
(black or light grey)
Excess injection Adjust injection
Faulty engine component Replace as required
Over loading Decrease load
Clogged air filter Replace filter
Undesirable exhaust smoke Excess engine oil Drain oil to proper oil level
(white or pale)
Improper lubricating oil viscosity Replace oil with specified viscosity
Faulty injection timing Adjust injection timing
10-23
OVERHAUL
ENGINE
Preparation
1. Turn coolant tap bolt, 1, counterclockwise to 1
drain fluid. Remove the radiator assembly. See
“Radiator Removal”, discussed later in this
section.
50020330
6
2. Remove the air cleaner assembly, 1, along with
the air cleaner hoses.
20020231
7
3. Remove bolts, 1, for final removal of air cleaner
assembly.
10-24
4. Remove the exhaust muffler, 1, and manifold
assembly, 2. Loosen bolt, 3, and bolt, 4,
Figure 10, to remove exhaust muffler. Loosen six
bolts, 5, to remove exhaust manifold.
3 2
19988039
10
FUEL INJECTOR AND GLOW PLUG 5 4
Removal
1. Clean all dirt and oil from the injectors and
surrounding areas.
2. Disconnect the fuel lines, 1, from the injectors
and cap all openings. 3
3. Remove the injector fuel leak-off line, 3. 2
4. Remove the injector assemblies, 2.
1
5. Remove the glow plug bus connector, 5, and
remove the glow plugs, 4.
11
10-25
OIL PRESSURE SWITCH

Removal 1
Remove the oil pressure switch, 1.
12
TEMPERATURE SENDING SWITCH AND 1
ALTERNATOR 2
Removal
1. Remove the temperature sending switch, 1, from
4
the front of the cylinder head.
2. Loosen the alternator mounting bolts, 2, and
remove the V-belt, 3, from the drive pulley.
3. Disconnect the alternator wires from the back of
alternator, 4.
4. Remove the alternator mounting bolts, 2, and
remove the alternator. 3
2
13
FAN, WATER PUMP AND EXTERNAL OIL
TUBE
Removal
1. Remove the fan and water pump assembly. See
“Fan Removal” and “Water Pump Removal”
discussed later in this section.
2. Remove the external oil transfer tube banjo bolt, 1
1, from the front of the cylinder head.
19988040
14
10-26
HEAD COVER
2
Removal
3 1
Remove the retaining bolts, 1, cap nuts, 2, and seal
washers, 3. Remove the head cover, 4, with gasket, 5.
20043769
15
ROCKER ARM SHAFT AND SUPPORT
BRACKET
Removal
Remove the bolts, 2, and nuts, 3. Remove the rocker
arm shaft and support bracket as an assembly, 1, and
2
3
gasket, 4. 2
1
NOTE: Alternately loosen the rocker support bolts a
turn at a time to prevent distorting the rocker shaft.
20043770
16
10-27
Op. 10 101
1 2
CYLINDER HEAD
Removal
1. Remove the valve stem caps, 1, and push
rods, 2.
NOTE: Keep all valve components in separately
marked containers for re-assembly in their original
location.
2. To remove the cylinder head, remove the cylinder

3
head bolts, 3, by alternately loosening a half turn
at a time to prevent warping the head.
17
VALVE TAPPET
Removal
Remove the valve tappets, 1, from the machined
bore in the cylinder block.
18
FUEL SHUTOFF SOLENOID
Removal
Remove the wire connector and unscrew the fuel
shutoff solenoid, 1.
19
10-28
TIMING GEAR COVER

3
Removal
1. Drain the engine crankcase oil.
1
2. Remove the crankshaft pulley.
3. Remove fuel shut off solenoid from engine block.
2
4. Loosen the four injection pump mounting bolts, 2
2, and raise the injection pump, 3, enough to
remove the spring pin, 1, and separate the
governor link from the control rack. Remove the
injection pump.
20
5. Remove the power steering pump reservoir tank
dipstick-filler cap, 2. 2
20020231
21
6. Remove the reservoir drain plug, 3, and drain the
hydraulic fluid out of the reservoir tank, 1, into a
suitable container.
3
19988041
22
10-29
7. Loosen the hose clamp, 2, on the suction tube,
3, and remove the suction hose from the steering 3 2
pump, 5. 4
8. Remove the pressure tube, 1, from the bottom of
the steering pump.
9. Remove the through bolts, 4, and remove the
steering pump from the front cover. Cap the lines
and pump openings.
1 5
19988042
23
10. Remove retaining nut, 1. Pull crankshaft pulley,
2, off of crankshaft, 3.
3
2
24
11. Remove the retaining bolts, 1, and lift the cover,
2, off the locating dowels. 1
25
10-30
Op. 10 106
TIMING GEARS AND CAMSHAFT
Removal 1
1. Remove retaining ring, 1, and remove the idler
gear, 3, and oil pump assembly, 2.
26
2. Remove the two bolts, 1, securing the keeper
plate, 3. One must be accessed using the access
hole, 2, in the cam gear.
2
3. Slide the camshaft and gear out of the camshaft 3
bore.
1
50043771
27
Op. 10 102
OIL SUMP
Removal
1. Remove the oil sump retainer bolts, 1.
2. Remove the oil sump and discard gasket.
28
10-31
OIL SUCTION PIPE AND STRAINER

2
Removal
1. Remove the two retaining bolts, 1.
3
2. Remove the oil strainer, 2, and rotate the oil
suction pipe, 3, out of its bore. Remove from the
front side of the block.
1
29
CONNECTING RODS, BEARINGS,
PISTONS AND RINGS
1 2
Removal
1. Remove the two bolts, 1, retaining the
connecting rod caps, 2.
2. Remove the connecting rod caps and lower half
of connecting rod bearing.
3. If necessary, remove any ridge from the top of the
cylinder bores using a suitable ridge reamer.
30
4. Push the piston and connecting rod out of the
cylinder block.
5. Replace the connecting rod cap to the piston
assembly it was removed from. Keep together in
cylinder sequence.
31
10-32
Op. 10 103
FLYWHEEL
Removal
1. Loosen the flywheel retaining bolts.
2. Using a brass drift and hammer, tap the end of
the crankshaft, 1, to loosen the flywheel, 2, from
the shaft.
2 1
32
BACKPLATE AND OIL SEAL
Removal
1. Remove the backplate retaining bolts and
remove the backplate.
2. Remove the rear oil seal, 1.
33
CRANKSHAFT AND MAIN BEARINGS
Removal
1. Remove the crankshaft bearing holder retaining
bolts, 1. 1
2. Slide the crankshaft and main bearing assembly
through the rear of the engine.
34
10-33
Op. 10 101
CYLINDER HEAD
Disassembly
1. Clean the cylinder head and remove any carbon
deposits from around the valve heads. 2
4
2. Use a valve spring compressor and remove the
1 3
valve spring retainer locks, 1, spring, 2, and
spring retainer, 3, from each valve, 4.
3. Remove the valves and place the valve
components together in separately marked
containers for reassembly in their original
position. 35
Inspection and Repair
1. Clean all carbon deposits from the combustion
chamber and valve ports using a wire brush and
scraper.
2. Clean all dirt and residue from the gasket surface
using care not to scratch or nick the machined
surface.
3. Clean the cylinder head in solvent and air dry.
4. Inspect the head for cracks or damage in the
following areas: 2 1
-- Valve ports
-- Valve seats, 2
-- Prechamber, 3
-- External cracks in the water jackets, 1
5. Inspect the gasket surfaces for scratches or

nicks, which could cause leakage.
6. Examine the core hole plugs for rust or signs of
leakage. If a plug shows signs of damaging rust 3
or leakage, replace all plugs in the head.
36
7. Inspect the prechamber for carbon deposits and
looseness. Remove any carbon deposits found.
If prechamber is found to be loose, cylinder head
may be warped.
10-34
8. Use a straight edge and a feeler gauge and
check the cylinder head for warp lengthwise,
crosswise, and diagonally.
37
VALVE SEATS 1
Examine the valve seats and surface the seat if
damaged. Valve seat grinding requires that the seat
be ground to the correct width and properly
positioned. A valve that extends too deep into the 2
combustion area will result in valve burning. If the
valve is recessed too deep into the head it will cause
a rapid build-up of carbon deposits.
1. Check the seat for surface defects. Use a 45°

stone if necessary to reface. Grind away only 3
enough material to provide a smooth even seat.
38
1. Correct Valve Seat Width and Location
2. Correct Valve Head Margin N843 0.7 - 1.0 mm
(0.027 - 0.039I)
3. 45° Valve Seat Angle
2. Check the seat width. If necessary, use a 15° 150° 3

stone to lower the seat contact point and use a
75° stone to raise the seat contact point. 90° 1
NOTE: Refacing the seat should always be 30° 2
coordinated with refacing of the valve to ensure a
compression tight fit.
0.5 mm
(0.020 in.) min.
39
1. Seat angle - 45° Stone
2. Lower Seat Location - 15° Stone
3. Raise Seat Location - 75° Stone
10-35
VALVES
Inspection and Replacement
1. Clean all deposits from the valves using a soft
wire brush. Inspect the condition of the valves
2
and discard any that are badly burned, cracked,
or bent.
6 5
4
3
40
1. Margin Too Thin
Min. 0.5 mm (0.02I)
2. Bent Valve
3. Pitting
4. Indented
5. Wear or Nicking
6. Burned
2. Using a micrometer, measure the valve stem at

points “A,” “B” and “C.” A B C
A B C
41
3. If inspection indicates that the valve may be
reused, the valve should be ground.
4. After grinding the valve and seat, check to ensure
the seat contacts the center of the valve face. 1
Using Prussian Blue, lightly coat the valve seat, 2
place the valve in position and rotate the valve
slightly while holding a light pressure against the
valve. If the blue is transferred to the center of the
valve face, the contact is correct.
42
1. 45° Angle Seat
2. Minimum Valve Margin
10-36
5. If Prussian Blue is not available, mark the valve
face or seat, 1, with a soft lead pencil. Rotate the
valve slightly in the seat. The penciled lines will
be broken at the seat contact area.
43
VALVE GUIDES 1
Thoroughly clean the valve guides before attempting
to check internal wear.
1. Using a telescoping gauge and micrometer,

measure the valve guide bore at the top and
bottom wear points, 1.
1
44
2. Determine the valve stem to valve guide
clearance, 1, by subtracting the valve stem
diameter from the valve guide diameter. Replace
valves if the clearance, 1, is more than 0.2 mm
(0.008I), intake valves, or 0.25 mm (0.010I),
exhaust valves.
3. Replace the cylinder head if excessive clearance
is determined and the valves have met all 1
specified measurement requirements. See
“Specifications,” discussed later in this section.
45
10-37
VALVE SPRINGS
1. Place the valve springs on a flat surface.
Measure the free length of the spring and
squareness. Replace springs that do not meet
the following specifications (all models):
Max. Out of Square Min. Free-Length
2.0 mm (0.079I) 33.5 mm (1.319I)
2. Place the springs in a suitable spring load tester

and measure the spring load rating. Replace
springs that do not meet the following specifica-
tions (all models): 46
Standard Maximum
8.1 kg (17.86 lbs.) 7 kg (15.43 lbs.)
at 30.4 mm (1.197I) at 30.4 mm (1.197I)
ROCKER ARMS
Inspection and Replacement 1
1. Setscrew 4. Spring
2. Rocker Arm 5. Rocker Arm Shaft 5
3. Shims 6. Plug
6
1. On Model TC29DA, remove setscrew, 1, that
secures the rocker arm, 2, to the support. 3
2. On Model TC29DA, remove the plug, 6, from the
rear of the rocker shaft support.
3. On Model TC29DA, thread an 8 mm bolt into the
rear end of the rocker shaft and slowly withdraw 2
the rocker shaft while at the same time removing 4
the rocker arms and springs. On Model TC33DA,
this will be done on the front end. 20043772 TC29DA Only
4. Inspect the rocker arms and shaft for wear or 47
damage. Check the adjusting screws for
damaged threads or excessive wear.
5. Check the valve stem contact area for pitting or
excessive wear. Slight wear patterns may be
removed using a fine grit oil stone.
2
3
4
20043773 TC33DA Only
48
10-38
6. Using an outside micrometer, measure the wear
points, 1, on the rocker shaft. Replace the rocker
shaft if the wear at any point exceeds 0.2 mm
(0.008I).
NOTE: On TC29DA Models, the lube holes, one set
on bottom of rocker shaft at set screw hole and one
lube delivery hole is 90° from the set screw hole.
On TC33DA Models, the lube holes, one set on the

bottom of rocker shaft at 170° from the oil pressure
check hole.
50043774
49
7. Using a telescoping gauge and micrometer,
measure the inside of the rocker arm. Replace
rocker arms having a bore diameter exceeding
11.57 mm (0.456I). Replace the rocker shaft
and/or rocker arm if the rocker arm to shaft
clearance exceeds 0.2 mm (0.008I).
NOTE: Rocker arms have no bushings and only one
lube hole.
50
PUSH RODS
1. Check the push rods for straightness by rolling on
a flat surface. Replace rods that are bent.
2. Inspect the ends of the push rods for excessive
wear. If any push rod is worn, the corresponding
lifter and rocker arm should also be inspected for
excessive wear.
10-39
CYLINDER HEAD
Assembly
1. Insert each valve in the guide from which it was
removed and lightly lap the valve to be sure of an
even seat around the valve face. Remove the
valve and remove all traces of lapping
compound.
2. Install new intake valve seals on the valve guides
using a suitable driver.
3. Using a spring compressor, assemble the
valves, springs, retainers, and keepers.
CYLINDER BLOCK
Inspection
1. Inspect the cylinder block top face for cracks,
damage, and warping in the same way as for the
cylinder head. Replace the cylinder block if warp
is greater than 0.12 mm (0.005I).
2. Visually inspect the cylinder bore. There should
be no scoring, rust, or corrosion.
3. Using a telescoping gauge in line with the
crankshaft, measure the inside diameter of the
top of the bore (approximately 1.0 mm [0.39I]
Model TC29DA and 1.5 mm [0.59I] Model
TC33DA below the top of the block).
4. Repeat this measurement at right angles to the
crankshaft at the same distance.
5. In line with the crankshaft at the bottom of the
bore, measure (approximately 100 mm [3.9I]
Model TC29DA and 117 mm [4.6″] Model
TC33DA from the top of the cylinder.
6. Repeat this measurement at right angles to the
crankshaft at the same distance. 51
7. If any of the measurements taken indicate worn or
damaged cylinder bores, the cylinders must be
bored and oversize pistons installed, or replace
the block. Pistons are available in 0.5 mm
(0.020I) and 1.0 mm (0.40I) oversize. Bore and
hone the cylinder to obtain a piston wall clearance
of 0.038 - 0.064 mm (0.0015 - 0.0025I).
NOTE: If the cylinder bore measures 85.19 mm
(3.354I) replace the block.
10-40
Op. 10 105
PISTONS
Disassembly and Inspection
1. Remove the piston rings using a piston ring tool.
52
2. Remove the wrist pin, 1, retaining rings and drive
the wrist pin out of the piston using pin remover
Tool No. NH 01585, 2.
1
53
3. Wash the pistons and connecting rods in a
suitable solvent and air dry.
4. Using a groove cleaner, remove the carbon
deposits from the ring grooves. Be careful to
avoid cutting any metal from either side or the
bottom of the grooves.
54
10-41
5. Inspect the piston ring lands for excessive wear.
Use a new ring, 1, and feeler gauge, 2, to check
1
the ring side clearance. Replace pistons having
a ring side clearance exceeding the following
dimensions: 2
Compression Ring Oil Control Ring

0.25 mm (0.010I) 0.15 mm (0.006I)
55
6. Using a micrometer, check the piston diameter at
90 degrees from the wrist pin bore. Replace
pistons that are worn to less than the following
dimensions:
Model Wear Limit

All 83.7 mm (3.3I)
56
7. Using a telescoping gauge and a micrometer,
measure the piston pin bore and the wrist pin
diameter. Replace piston and/or wrist pins that
exceed the following limits:
Bore Diameter: 28.0 mm (1.102I)
Pin Diameter: 27.98 mm (1.101I)
Clearance: 0.02 mm (0.0008I)
In some instances the wrist pin diameter may be

equal to or slightly larger than the wrist pin bore.
This interference fit is normal.
57
10-42
PISTON RINGS
1. Position the piston rings, 1, one at a time, in the 2
cylinder to the lowest point of travel. Use an 1
inverted piston to square the ring in the bore.
2. With a feeler gauge, 2, measure the ring gap.
The ring is shown at the top of its travel for clarity.
3. Replace worn rings with end gap clearance in
excess of 1.0 mm (0.039I).
58
CONNECTING RODS
1
1. Check the connecting rods for damage and 2
alignment. Place each rod in an alignment fixture
to check for bent or twisted condition.
2. Straighten or replace rods that are bent or twisted
more than the following dimensions: 3
Max. Bend: 0.15 mm (0.0059I)
per 100 mm (3.94I)
Twist: 0.2 mm (0.0078I)
per 100 mm (3.94I) 2 BENT ROD
1
3
TWISTED ROD
59
1. Alignment Fixture
2. Gauge
3. Connecting Rod
10-43
3. Using a telescoping gauge and a micrometer,
measure the inside diameter of the connecting 1
rod wrist pin bushing.
4. Replace bushings measuring more than the
following:
Model Max. Inside Diameter

TC29DA 25.0 mm (0.984I)
3
TC33DA 28.0 mm (1.1024I)
2
60
1. Hole Gauge
2. Micrometer
3. Connecting Rod
5. Remove and install the connecting rod wrist pin

bushings using a suitable driver and press a new
bushing into the rod bore.
6. Ream and hone the bushing to the following 1
finish size.
2
Pin to Bushing Clearance 3
Std. Max.
0.010 - 0.025 mm 0.08 mm
(0.00039I - 0.00098I) (0.0031I)
61
1. Press
2. Connecting Rod
3. Bushing Driver
7. When installing a new piston pin bushing, use the

hole in the rod and drill a lube hole in the new
bushing.
62
10-44
8. Install the connecting rod on the crankshaft and
measure the play in shaft direction. If the play is
more than 0.7 mm (0.028I) replace the
connecting rod. 1
63
1. Side Clearance Check
0.7 mm (0.028I) Max.
CONNECTING ROD BEARING OIL

CLEARANCE CHECK 2
1. Remove oil or foreign matter from the bearing 1
and crankshaft.
2. Cut a piece of plastigauge, 1, to the same width
as the bearing. Place it on the crankshaft. Avoid
the oil hole.
3. Install the rod cap and torque to 49.0 - 53.9 N⋅m
(36.2 - 39.8 ft. lbs.).
4. Remove the rod cap and measure the width of
the flattened plastigauge using the plastigauge START FLATTENED
scale.
64
5. The width of the widest flattened plastigauge is 1. Plastigauge
the minimum clearance and the width of the 2. Bearing Clearing Check
narrowest plastigauge is the greatest clearance.
Select the proper size bearing liners to obtain the
correct clearance. See “Specifications” later in
this section.
10-45
PISTONS, RINGS AND CONNECTING ROD

Assembly
2
1. Assemble the pistons and connecting rods with

the matching marks, 1, on the rods on the same
side as the trade name “SHIBAURA,” 2,
embossed on the inside of the piston skirt. Install
the piston pin, and retaining rings.
65
2. Using a suitable ring expander tool, install the
piston rings positioning the ring gaps at
approximately 120 degrees from each other.
Install the bottom (oil ring) first as follows:
Put the expander ring, 1, into position in its
groove.
Put the outer oil ring, 2, into position in its groove.
Adjust the outer oil ring gap, so it is diametrically 1
opposite to the joint of the expander ring.
2
10044359
66
10-46
Op. 10 103
MAIN BEARING AND THRUST WASHER
Removal and Inspection
1
1. Remove the two retaining bolts from the bearing
holders, 1.
2. Remove the bearing holders and bearing liners,
2. 2
3. Position a piece of plastigauge across the full
width of the bearing liners.
4. Install the bearing holder and tighten the bolts to
49.0 - 53.9 N⋅m (36.2 - 39.8 ft. lbs.).
NOTE: Do not permit the bearing holder to rotate,
even the slightest amount.
3
5. Remove the bearing holders and measure the
width of the flattened plastigauge using the
gauge printed on the plastigauge package.
6. Replace components or grind the crankshaft to
the next oversize bearing as required to obtain
the correct clearance. See “Specifications” later
in this section.
7. Check the thrust washer for wear, poor contact,
burning, or other defects. Using a micrometer
measure the washer thickness. If washer
thickness is not within allowable limits or found to 67
be defective, the washers must be replaced. 1. Holder
2. Main Liner
3. Thrust Bearing
Standard Thickness: 2.95 mm-3.0 mm
(0.116I-0.118I)
Allowable Limit: 2.8 mm (0.11I)
CRANKSHAFT
Inspection 1 2
1. Inspect the crankshaft gear teeth for wear or
1 2
damage and replace if necessary.
A
B B
68
A. Taper Readings: 1 vs. 2
B. Out-of-Round Readings: A vs. B
10-47
2. Using a dial indicator, measure the crankshaft
journals for size, runout, and tapper.
2 2
3. The amount of tapper in a journal is the difference
in the measurements taken at points 1 and 2 on 1 1
a journal.
4. The amount of out-of-round in a journal is the
difference in the measurements taken at 90°
points on the journal.
NOTE: The smallest reading taken at any one of the
readings indicates the size of the journal. See
“Specifications” for wear limits and repair recommen-
dations.
69
NOTE: Undersize bearings are available in 0.25 -
0.50 mm (0.010- 0.020I) for both main and crankpin
journals. See “Specifications” for wear limits and
bearing usage.
5. Mount the crankshaft in a set of V-blocks and

measure the amount of runout using a dial
indicator.
6. Straighten or replace crankshafts that exceed
runout specifications. See “Specifications,”
CRANKSHAFT BEARING (BUSHING)

Inspection
1. Check the bearing (bushing) for peeling, melting,
seizure, or poor contact.
2. Using a telescoping gauge and micrometer, 1 2
measure the oil clearance between the bearing 3
4
(bushing) and the crankshaft journal.
3. Measure the inside diameters at positions 1 and
2. At each position, measure in both directions 3
and 4. The oil clearance can be obtained by
subtracting this value from the maximum
crankshaft journal diameter.
70
4. If the oil clearance exceeds 0.2 mm (0.0078I)
replace the bearing (bushing) or grind the
crankshaft journal. In this case, use an
undersized bearing (bushing).
10-48
Replacement CYLINDER
1. Remove the bearing from the front of the cylinder CLINCH BLOCK
15
block housing using a bushing driving tool to 12.5
prevent damage.
2. Inspect the bushing housing for marks,
scratches, or damage.
FRONT SIDE
3. The bushing should be smoothly pressed into the
correct depth by using a bushing driving tool,
aligning the oil hole, and direction of bushing.
• Press the bushing into the cylinder block
from the engine front side. 1
NOTE: Do not press the bushing into the cylinder ALIGN
block from the opposite side.
71
NOTE: The correct pressing side is chamfered, etc.,
to allow smooth operation.
• Lubricate the outer surface of the bushing.

• Align the oil hole, 1, of the housing and
bushing.
• Press the bushing into the housing until the
correct depth by using a bushing driving tool.
4. Confirm the housing and bushing oil holes are in
alignment.
CRANKSHAFT MAIN BEARING AND

1 1 1
THRUST WASHER
Assembly
1. Install the bearing holders, 1, along with their
liners. The rear bearing is also assembled along
with the thrust bearing halves, one located on
each side of the bearing. Be sure the bearing
holders are correctly positioned on the shaft with
the chamfered edge facing forward.
2. Torque the bearing holder retaining bolts to 49.0
- 53.9 N⋅m (36.2 - 39.8 ft. lbs.). 2
3
72
1. Bearing Holder
2. Thrust Bearing
3. Holder Chamfer (Stepped)
10-49
PORT BLOCK
Removal
4
NOTE: The oil pump shaft and port block assembly

is a press fit in the block.
1. Using special Tool No. NH11097, 3, place the

collars in the grooves of the port block assembly.
2. Align the set screws, 2, of the puller, 3, with the
counterbores in the collars and tighten.
3 2
3. Using a sliding hammer, 1, remove the port block.
1
4. Remove plate, 4, from the block.
73
Installation
1. Using special Tool No. NH00117, 2, insert the
threaded guide pins, 1, into the cylinder block. 1
2. Assemble the oil pump shaft to the port block
using nut and washer.
3. Insert the port block assembly into the installer
and place on the guide pins.
4. Using a suitable driver, install the port block
assembly. The installer must bottom against the
engine block when fully positioned.
2
NOTE: Plate, 4, Figure 73 must be removed from
engine block for proper installation of the port block. 74
Op. 10 106
TIMING GEAR
Inspection
1. Check the timing gears for wear and damage on
the contact area. Replace if any defect is found.
2. Measure the backlash of gears with a feeler
gauge or dial indicator. If the allowable limit is
exceeded, replace all timing gears.
Standard Allowable Limit

0.08 mm (0.003I) 0.25 mm (0.010I)
75
10-50
CAMSHAFT
8
Disassembly 6
4 5
1. Remove the slider, 1, from the camshaft gear.
2. Using a gear puller, remove the gear assembly, 3 2
2, spacer, 3, spacers, 4, spacer gear, 5, bearing,
6, and key, 8, from the camshaft, 7.
7
1
76
Inspection
1. Place the camshaft in a set of V-blocks and check
the runout using a dial indicator, 1. 1
2. Replace or straighten the camshaft if the runout
is greater than 0.1 mm (0.004I).
3. Using a micrometer, measure the height of the
camshaft lobes.
4. Replace the camshaft if any of the cam lobes are
worn to less than the following dimensions:
Valve Lobe: 33.7 mm (1.326I)
Injection Pump Lobe: 41. mm (1.646I)
77
Assembly
5
1. Install bearing, 1, two spacers, 2, spacer gear, 3, 1
and spacer, 4. 2
3
NOTE: The spacer gear, 3, serves as a spacer only.
There is no other purpose for this gear. 4 6
2. Insert key, 5, into key slot on shaft and press the

gear assembly, 6, over the shaft onto the key.
78
10-51
Op. 10 103
FLYWHEEL
1. Inspect the ring gear for cracked, broken,
chipped, or worn gear teeth. If found damaged,
replace the ring gear.
2. If necessary, remove the starter ring gear using
a hammer and chisel to crack the ring gear.
3. To reinstall a new ring gear, heat the new ring
gear to 120 - 150°C (245 - 300°F) from the inside
only. Be careful not to overheat the ring gear
teeth. Use a temperature sensitive crayon to 79
mark the inside of the ring gear. Quench the ring
gear quickly to obtain a good shrink fit onto the
flywheel.
Op. 10 102
TIMING GEAR HOUSING
2
The timing gear housing, 3, contains the front oil seal,
1, power steering seal, 4, and the governor linkage
assembly, 2. See Section 2, “Governor Assembly”,
3
for governor linkage repair and replacement
procedures.
4
1
80
FRONT OIL SEAL AND STEERING PUMP
SEAL
Replacement
1. Remove the front oil seal, 1, from the timing gear
cover, 3, and insert a new oil seal in its place. 3
2. Remove the steering pump seal, 2, located on
the front of the timing gear cover, and replace
with a new seal.
2
81
10-52
Op. 10 103
1
CRANKSHAFT AND BEARING HOLDER
Installation
1. Install the crankshaft with bearing holders
through the rear of the cylinder block.
2. Align the threaded holes on the bearing holders
with the bolt holes in the cylinder block.
3. At the flywheel end install the two socket head hex
bolts, at each center bearing install the hex head
bolt. Torque the socket head bolts to 24 - 31 N⋅m
(18 - 22 ft. lbs.). Torque the hex head bolts to 49
- 54 N⋅m (36 - 40 ft. lbs.). 82
4. Using a dial indicator, measure the crankshaft 1. Bearing Holder Bolts
end float (thrust).If the thrust is not within the
allowable limit, remove the crankshaft and check
the thrust washers.
Standard Thrust Allowable Limit

0.1 - 0.4 mm 0.5 mm
(0.004 - 0.016I) (0.020I)
83
REAR OIL SEAL AND BACKPLATE
Installation
1. Install the rear oil seal, 1, over the rear of the
crankshaft.
NOTE: The rear oil seal is a press fit retained by the
backplate.
1
2. Apply liquid gasket sealer to the backplate
attaching bolts,install the back and tighten the
back plate bolts to 14 - 18 N⋅m (10 - 13 ft. lbs.).
84
10-53
FLYWHEEL
Installation
1. Fit the flywheel, 2, to the crankshaft, 1, and align
the bolt holes.
2. Install the flywheel retaining bolts and tighten to
58 - 68 N⋅m (43 - 50 ft. lbs.).
2 1
85
Op. 10 105
1
PISTONS AND CONNECTING RODS
Installation
1. Coat the bearing faces, pistons, and piston rings
with clean engine oil. Slide the piston rings to
permit a sufficient amount of oil to be applied in
the grooves.
2. Set the piston ring gaps 90 degrees apart from
each other. Do not position these gaps toward
the piston pin or the right angle of the pin.
3. Using a piston ring compressor, 1, insert the
pistons in the cylinders with the prechamber side 86
of the piston facing the injection pump side. The
connecting rod marks should also face the
injection pump side.
NOTE: Install the pistons from the front to the rear in
order.
4. Install the connecting rod caps, 2, making sure

the rod and cap matching marks align. Tighten 1
the connecting rod cap screws, 1, to 49 - 54 N⋅m 2
(36 - 40 ft. lbs.).
NOTE: After installation, ensure the crankshaft
moves freely. Ensure the axial play of 0.1 - 0.3 mm
(0.004- 0.012I) is provided.
87
10-54
OIL SUCTION PIPE AND SUCTION

STRAINER
Installation
1. Install a new O ring on the suction pipe and rotate
the suction pipe into its bore.
2. Install the suction strainer over the suction pipe
and align the bolt holes.
NOTE: If suction strainer bolt holes do not align, the
suction pipe is either too far into its bore or not in far
enough. Adjust as needed.
3. Install the strainer retaining bolts and tighten to

88
8.8 - 12.9 N⋅m (6.5 - 9.5 ft. lbs.).
OIL SUMP
Installation
1
1. Apply a thin coat of gasket sealer to the oil sump

sealing area.
2. Install a new gasket, the oil sump and the
retaining bolts. Tighten the retaining bolts, 1,
diagonally and evenly.
89
10-55
Op. 10 106
CAMSHAFT AND CAMSHAFT GEAR
2
Installation 4
3
1. Install the front plate, 4, and gasket on the
mounting dowels and tighten the retaining bolts.
2. Carefully insert the camshaft into its bore so as
not to damage the bearings or bearing surfaces.
3. Align the retaining plate, 3, to the block bolt holes,
2, and install the retaining bolts, 1. Tighten the
bolts to 8.8 - 12.9 N⋅m (6.5 - 9.5 ft. lbs.). 1
50043771
90
Op. 10 106
IDLER GEAR, OIL PUMP AND INJECTION 4
TIMING
1
Installation
1. Install the thrust washer, on the idler gear shaft. 5
2. Align the timing marks, 1, on the idler gear, 3,
crankshaft gear, 5, and the camshaft gear, 4.
3. Complete the installation of the oil pump and 3
adjust axial clearance. See “Oil Pump Installation
and Adjustment” discussed later in this section. 2
50043776
NOTE: Do not turn the crankshaft until the timing
gear cover is installed. 91
NOTE: Number 3 piston (cylinder next to the

flywheel) will be at top dead center when timing
marks align.
TIMING GEAR COVER

1
Installation
1. Install new cover gasket.
2. Insert the governor linkage through the block.
3. Rotate the oil pump cover to position the spring
pin hole, 2, Figure 91, to align with spring pin in
timing cover.
4. Install cover locating pin in the oil pump cover
plate.
5. Install the cover retaining bolts, 1.
92
10-56
CRANKSHAFT PULLEY
1
Installation 3
1. Align the keyway, 1, on the crankshaft pulley, 2, 2
and the crankshaft, 3. Push the pulley onto the
shaft.
2. Install the retaining nut, 4, and torque to 274.4 - 4
333.2 N⋅m (202.5 - 245.9 ft. lbs.).
93
FUEL INJECTION PUMP
Installation 2
1. Insert the injection pump, 2, and shim in position
in the block. Connect the injection pump control
rack and governor link with the snap pin, 1.
2. Push the injection pump, 2, onto its mounting 3
studs, 3, and install the retaining nuts and bolts. 3
1
94
POWER STEERING PUMP
3 2
Installation 4
1. Mount the power steering pump, 5, in position on
the timing gear cover, 6, with its four retaining
bolts, 4.
2. Attach the pressure tube, 1, to the bottom of the
steering pump, 5.
3. Install the suction line, 3, on the suction tube and
tighten the hose clamp, 2.
6 1 5
19988042
95
10-57
Op. 10 101
HEAD GASKET SELECTION
During assembly, the ultimate engine compression
ratio is established by the thickness of the head
gasket used. For service replacement, head gaskets
of different thickness are available. The correct head
gasket must be selected based upon the amount the
piston protrudes above the face of the block when at
top dead center. The correct head gasket usage is
determined as follows:
1. Position each of the pistons at top dead center

and, using a dial indicator, determine the
distance each piston projects above the face of 96
the block.
NOTE: Measure each of the pistons while holding a
slight down pressure on the piston. Use the
dimension taken from the cylinder which has the
greatest projection and select a head gasket as
indicated in the following chart.
NOTE: The variation in the amount of protrusion

among all pistons must be within 0.1 mm (0.004 in.).
Model Measurement Value Head Gasket Part No. Installed Thickness

All 0.5 - 0.7 mm (0.019 - 0.027I) 111147491 t = 1.3 mm (0.51I)
All 0.7 - 0.8 mm (0.027 - 0.038I) 111147501 t = 1.4 mm (0.55I)
CYLINDER HEAD
Assembly 1
1. Install the valve tappets, 1.
97
10-58
2. Select the proper head gasket and place it on the
block with the side marked with the last four digits 11 13
of the part code no. up. 9
5
3. Tighten the head bolts in the sequence as 1
shown. Tighten first to half torque value, then
3
7
to the final torque specification of 88 - 94 N⋅m
(65 - 69 ft. lbs.). 2
4. Install the push rods and valve stem caps in their 4
original location. 12
5. Install the rocker shaft support assembly onto 8 6
the head and tighten the bolts to 20 - 25 N⋅m 14 10
(14.5 - 18 ft. lbs.).
98
Op. 10 106
1 2
VALVE CLEARANCE ADJUSTMENT
1. Adjust the rocker arm to valve clearance. Be sure
the tappet is in its lowest position before making
the adjustment. To be sure the tappet is in its 3
lowest position, bring the piston to top dead
center on the compression stroke (both valves
closed).
2. Loosen the nut and adjust the clearance of both
the intake and exhaust valves to 0.2 mm (0.008I)
with the adjusting screw.
99
1. Adjusting Screw
2. Locknut
3. Valve Clearance 0.2 mm (0.008″)
HEAD COVER
3
Installation 2
1. Install a new gasket, 4, and position the head
cover, 1, over the rocker arms.
2. Install the head cover retaining bolts, 2, and cap
nuts, 3, tighten to 12 - 16 N⋅m (9 - 19 ft. lbs.). 1
20043777
100
WATER PUMP AND COOLING FAN
Installation
Install the water pump and fan assembly. See “Water
Pump Installation” and “Cooling Fan Assembly
Installation” discussed later in this section.
10-59
EXTERNAL OIL TUBE

Installation
Connect the external oil tube to the cylinder head and
on side of engine block. Tighten the banjo bolt, 1, to
9 - 12 N⋅m (7 - 9 ft. lbs.).
NOTE: The banjo bolt has oil port holes drilled in it. 1
Do not use a standard bolt in its place.
19988040
101
GLOW PLUG AND CONNECTOR
2
Installation
1. Install the glow plugs, 1, and torque to 15 - 20 N⋅m
(11 - 14.5 ft. lbs.).
2. Install the glow plug connector, 2.
102
FUEL INJECTOR
Installation
Install the fuel injectors, 1, and torque to 60 - 69 N⋅m
(55 - 51 ft. lbs.).
103
10-60
Op. 10 218
2 4
FUEL PIPING 2
Installation
1. Install the fuel return line, 4, on the ejectors, 2,
and injector pump, 3.
3
2. Install the injection piping, 1, and torque to 15 -
24 N⋅m (11 - 18 ft. lbs.).
104
ALTERNATOR AND TEMPERATURE
2 1
SENDER SWITCH
Installation
1. Install the temperature sender switch, 1, and
torque to 15 - 20 N⋅m (11 - 14.5 ft. lbs.). 4
2. Install the alternator with its mounting bolts, 2,
snug.
3. Install the V-belt, 3, adjust to 10 - 15 mm (7/16 -
9/16I) deflection tension, and tighten the
alternator bolts.
4. Connect the wiring to the back of the alternator 3
at location 4.
2
105
EXHAUST MANIFOLD
Installation
Install the exhaust manifold, 2, gasket and muffler, 1.
106
10-61
DESCRIPTION OF OPERATION -- ENGINE LUBRICATION SYSTEM
Op. 10 304 passes through drilled passages in the crankshaft to

The oil pump assembly is located within the idler gear the three connecting rod bearings. The remaining
at the front of the block, below and to the left of the portion of the oil flow is directed through the external
crankshaft as viewed from the front of the engine. tube to the rocker arm assembly. Oil flows from the
The oil pump is driven by the crankshaft gear. external tube into a passage in the rocker arm
bracket to the rocker arm shaft. Oil leakage from
Oil is picked up from the sump through the suction clearance between the rocker arms and the shaft
strainer and intake tube and drawn into the lower side overflows in the valve cover and lubricates the valve
drilling in the block to the oil pump (refer to stems, push rods, and tappets. The relief valve is
Figures 102 and 103). Oil from the pump flows mounted on the side of the engine block and
through passages in the block, past the relief valve, intersects the main oil passage. When the oil
through the oil filter and returns to the main oil gallery pressure exceeds the rated pressure, oil is bypassed
in the area of the drilled bolt located on the side of the through the relief valve directly to the sump. The
block. Oil flow in the main oil gallery extends to the cylinder walls, pistons, and piston pins are splash
four main bearings. Oil flow to the main bearings lubricated by the crankshaft.
10-62
2
5
1
20043778
107
1. Oil Pump 4. Oil Pressure Switch
2. Relief Valve 5. Suction Strainer
3. Oil Filter
10-63
MODEL TC29DA AND TC33DA OIL FLOW CHART
NO. 3 NO. 2 NO. 1
NO. 3 NO. 2 NO. 1
108
10-64
Op. 10 206
1
OIL FILTER
Construction and Function
These engines utilize a cartridge type filter.
Pressurized oil flow from the pump enters from 1, and
is filtered by a full flow filter before discharge through 2
2. When the full flow filter is clogged, the safety valve,
3, opens to bypass the oil.
109
Maintenance
The oil filter must be replaced every 100 hours of 7
operation. When installing a new filter, coat its face
with clean oil. Hand tighten only. 6
5
4
Op. 10 304 3
2 9
OIL PUMP 1
Removal 8
1. Drain the engine oil and remove the spin-on type
oil filter.
2. Drain the radiator and remove the cooling fan 110
and water pump assemblies. See “Cooling Fan
Removal” and “Water Pump Removal” dis-
cussed later in this section.
3. Remove the timing gear cover. See “Timing Gear
Cover Removal” discussed earlier in this section.
4. Remove the retaining ring, 1. Remove the idler
gear, 8, and oil pump assembly, 1 through 9.
Inspection
1. Check for excessive wear on the pump cover, 5,
and the port block. If port block requires
replacement, see “Port Block Removal” dis-
cussed earlier in this section.
2. Inspect the pump shaft and rotor, 6, for excessive
wear or scratches.
10-65
3. Measure the rotor to vane clearance. Replace CLEARANCE
the components as required, if clearance is not
within specified tolerances.
Std. Max.
0.01 - 0.15 mm 0.25 mm
(0.004 - 0.006I) (0.010I)
111
Installation and Adjustment
1. If the port block assembly was removed, install a 7
new port block assembly. “See Port Block
6
Assembly Installation” discussed earlier in this
5
section.
2. Install the thrust washer, 9, and align the set 4
3
marks on the idler gear, 8, crankshaft gear, and 2
camshaft gear, and install the idler gear on the
9
1
port shaft. 8
3. Install the rotor, 6, and spring, 7.
4. Install the oil pump cover, 5, shim, 4, spring, 3,
and collar, 2. Secure the assembly to the shaft
with the retaining ring, 1. 112
5. Using a dial indicator, 1, measure the axial

movement of the collar, 6. The standard 6
clearance is 0.15 - 0.22 mm (0.006 - 0.009I) and 2
1
the maximum allowable is 0.30 mm (0.012I). 4
Install or remove shims, 5, (PN SBA-199286340) 5
as needed to obtain the standard clearance
value. 3
6. Install the water pump and cooling fan assembly.
See “Water Pump Installation” and “Cooling Fan
Installation” discussed later in this section.
7. Install the timing gear cover. See “Timing Gear
Cover Installation” discussed earlier in this
section.
8. Refill the radiator to its proper coolant level.
113
9. Replace the engine oil filter and fill the sump with 1. Dial Indicator
oil. 2. Spring
3. Idler Gear
4. Oil Pump Cover
5. Shim
6. Collar
10-66
ENGINE OIL PRESSURE CHECK

2
1. Disconnect the sending lead, 2, and remove the 1
oil pressure sending unit, 1.
114
NOTE: Main gallery access port, 1, located next to
the relief valve, 2, and external oil tube, 3. 2 1
3
115
2. Install the oil pressure test fitting No. NH00011,
1, and test gauge, 2. Start the engine and 2
observe gauge indicator. Gauge should indicate
between 0.98 - 1.47 bar (14.22 - 21.33 psi) at low
idle and 2.45 - 2.94 bar (35.5 - 42.6 psi) at high
idle.
NOTE: Pressure test should be with engine at
1
normal operating temperature.
3. If the gauge did not indicate the oil pressure

within specified tolerances at low and high idle,
troubleshoot the lube oil system. See “Trouble-
shooting” discussed later in this section.
116
10-67
OIL PRESSURE RELIEF VALVE

1
Removal
Unscrew the oil pressure relief valve, 1, and remove
from the block.
NOTE: Pressure test should be with engine at

normal operating temperature.
Installation
Install a new O ring seal over the relief valve and screw
the valve into the block. Tighten to 58.8 - 68.6 N⋅m
(43.4 - 50.6 ft. lbs.).
117
OIL CONSUMPTION
Log oil consumption as follows:
1. Change the engine oil and filter. Use the oil

specified in the loader operator’s manual.
2. Run the engine for 2 minutes.
3. Check the dipstick and add oil, if required, so the
level is at the full mark.
4. Fill the fuel tank with fuel.
5. Record fuel consumption in liters (gallons), oil
added in liters (gallons), and hour reading.
Record fuel and oil use for 100 hours of
operation, which is the recommended oil change
interval. Check the dipstick before running the
engine each day.
The maximum allowable oil consumption is 0.8%.

The following table gives examples:
Fuel Consumption, Liters (Gallons) Oil Consumption, Liters (Quarts) Percentage

189.27 L (50 gal.) 1.5 L (1.6 qts.) 0.79 %
378.54 L (100 gal.) 3.03 L (3.2 qts.) 0.80 %
757.08 L (200 gal.) 6.06 L (6.4 qts.) 0.80 %
If the oil consumption is greater than 0.8% of the fuel

consumption, oil usage is excessive. A sample
calculation for oil consumption follows:
Quantity of Oil in Liters (gallons)
% consumption = × 100
Quantity of Fuel in Liters (gallons)
Assume 0.25 Liters (0.07 gallons) oil is added for 50

Liters (13.2 gallons) fuel.
0.25 L 0.07 gallons
% consumption = × 100 or × 100
50 L 13.2 gallons
% consumption =0.5%
10-68
DESCRIPTION OF OPERATION -- COOLING SYSTEM
Op. 10 400 is closed only a small amount of coolant is permitted

The cooling system is the recirculating bypass type to flow through the thermostat bypass to the radiator
with a full length water jacket for each cylinder cast to effect a faster warm-up. When the thermostat is
into the block. The coolant is drawn from the bottom open, the coolant flows from the water outlet
of the radiator by the water pump and passes around connection to the top tank of the radiator for
the cylinders and into the cylinder head. Refer to maximum cooling.
Figure 113.
Cooling occurs as the coolant passes down through
The thermostat is located in the front of the cylinder the radiator cores which are exposed to the air flow
head and thermostatically controls the flow of coolant created by the fan as air is drawn through the
from the engine to the radiator. When the thermostat radiator.
10-69
RADIATOR THERMOSTAT
RADIATOR CAP
AIR FLOW
WATER PUMP
FAN
118
10-70
MAINTENANCE COOLANT
The coolant is a permanent type ethylene-glycol
WARNING base antifreeze and should be used all year.
The cooling system operates under pressure
which is controlled by the radiator cap. It is Drain and flush the cooling system every twelve
dangerous to remove the cap from a hot engine months and replace the coolant with fresh antifreeze
or while the engine is running. Always shut the and pure water.
engine off and allow it to cool before removing
the radiator cap. When removing the cap, use a After the coolant has been drained from the radiator
thick cloth to cover the cap and slowly turn the and block, flush the system by placing a water hose
cap to the first stop to allow pressure to escape in the radiator filler neck. With the drain open and the
before removing the cap completely. system full of water, start the engine and run it until
the water flowing from the drain is clear. Stop the
Clean the cooling system to remove rust, sludge, and engine and allow the system to drain, then replace
other foreign material by using a coolant system the coolant with new 50/50 mixture antifreeze and
cleaning solvent. In severe cases, pressure flushing pure water.
may be required. A pulsating or reverse flow flushing
will more effectively loosen and remove foreign RADIATOR CAP
material than a steady flushing in normal direction of The radiator cap acts to pressurize the cooling
coolant flow. If pressure flushing is to be used, always system, as a pressure relief valve and also acts as a
remove the thermostat and make sure the head bolts vent valve. The pressure valve permits a limited
are tightened properly. pressure buildup in the cooling system as the coolant
heats up. This increased pressure increases the
boiling point of the coolant. If excess pressure builds
up in the system, the pressure relief valve will open
until the pressure returns to the proper level, 0.9 bar
(13 psi).
When the engine is shut off and the coolant cools, a

vacuum condition is created in the system. A vent
valve in the radiator cap opens to permit outside air
pressure to enter the system when this condition
exists.
10-71
Op. 10 402
THERMOSTAT
The thermostat, 1, is located between the coolant
outlet on the engine and the radiator. In this position
the thermostat is able to sense the coolant
temperature in the engine and regulate the flow of
coolant to the radiator. When the engine is cold, only
1
a small amount of coolant flows to the radiator
through the thermostat bypass. As the engine warms
up, the thermostat opens to allow sufficient coolant
flow to the radiator to maintain a constant engine
temperature.
119
Op. 10 402
WATER PUMP 1
The water pump, 1, is an impeller attached to a shaft
which is belt driven by the engine crankshaft. The
impeller circulates water by centrifugal force.
Coolant entering the pump housing from the radiator
through the lower hose is thrown outward against the
housing with sufficient force to cause a circulating
action.
120
Op. 10 414
COOLING FAN
A seven-blade cooling fan, 1, is belt driven by the
engine crankshaft and is mounted on the water pump
shaft. The cooling fan is positioned behind the
radiator to draw air over the radiator cooling fins. To
increase and concentrate the volume of air flowing
through the radiator, a shroud is positioned around
the fan.
121
10-72
OVERHAUL
Op. 10 406
RADIATOR
Removal 1
1. With the hood open, remove the tractor side
panels.
2. Drain the radiator, 1, and engine coolant taps, 2,
in a clean container. Remove the radiator cap to
assist draining.
50043781
122
50020330
123
3. Disconnect the battery leads, 1, and battery hold

down bracket, 2, to remove the battery.
124
10-73
4. Loosen the lower radiator hose clamp, 1, and
remove the hose, 2, from the radiator.
1 2
125
5. Remove the air cleaner inlet tube, 1, by loosening
clamp, 5. 1 2
6. Loosen the upper radiator hose clamp, 4, and
3
remove the upper hose, 3.
7. Remove the radiator top brace, 2.
5
4
126
8. If equipped with HST cooler, 1, remove the cooler
mounting bolts, 2, from the sides of the radiator,
3, and slide the cooler forward, away from the
radiator.
3
1
127
10-74
9. Remove the bottom support bolts and insulators,
2, from the frame, 3, and remove the radiator and 1
shroud assembly, 1.
128
1. Inspect the radiator fins and be sure they are free
from obstruction.
2. Check the radiator for signs of coolant leakage
and repair as required.
Installation
1. Place the radiator assembly in position on the
engine frame and tighten the mounting bolts.
2. If equipped with HST cooler, 1, place the cooler
in position on the radiator and tighten the
mounting bolts, 2.
1
129
3. Install the radiator top brace, 2.
1
4. Install the air cleaner inlet tube, 1, with clamp, 5.
5. Install the upper radiator hose, 3, and tighten the
hose clamp, 4. 3
2
5
4
130
10-75
6. Install the lower radiator hose, 2, and tighten the
hose clamp, 1.
1 2
131
7. Install the battery and hold down bracket, 2, then
connect cables, 1. 1
8. Replace the coolant with 50/50 mixture anti-
freeze and pure water.
9. Install the radiator cap. Start the engine and run
for several minutes and check the hose
connections for any leakage.
132
10-76
Op. 10 402
1
WATER PUMP
Removal
1. Remove the radiator assembly. See “Radiator
Removal” discussed previously in this section.
2. Loosen the alternator mounting bolts, 1, and
adjusting bracket and remove the drive belt, 2.
2
1
133
3. Remove the attaching bolts, 4, cooling fan, 1, fan
holder, 2, and pulley, 3.
4
1
134
4. Remove the bypass hose, 1, and lower radiator
hose, 2, from the water pump, 3. 7
5. Remove the water pump retaining bolts, 8, and 1
remove the water pump, 3, and gasket, 5, from
engine.
6 3
6. Remove the water pump mounting plate, 4, and
gasket, 6.
4
5
2
8
135
1. Bypass Hose
2. Lower Radiator Hose
3. Water Pump
4. Mounting Plate
5. Gasket
6. Gasket, Mounting Plate
7. Retaining Bolt, (Mounting Plate)
8. Water Pump Retaining Bolt
10-77
Inspect the water pump for indications of coolant 7
leakage from around the pump shaft. If coolant 1
leakage is evident, or if the water pump is noisy when
running, replace the water pump.
6 3
Installation
1. Install the water pump mounting plate, 4, and 4
new gasket, 5. 5
2. Install the water pump, 3, and new gasket, 6, and 2
tighten the retaining bolts, 7 and 8.
8
3. Install the bypass hose, 1, and lower radiator
hose, 2, on the water pump and tighten the hose 136
clamps.
4. Install the pulley, 3, fan holder, 2, and cooling fan,

1, and tighten the attaching bolts.
3
2
137
5. Install the drive pulley and adjust the alternator
drive belt tension to obtain a deflection, 1, of 5 -
10 mm when 5 kg (11 lbs.) is applied between the
pulleys and tighten the alternator mounting bolts.
6. Install the radiator assembly. See “Radiator
Installation” discussed earlier in this section.
138
10-78
Op. 10 402
THERMOSTAT
Removal 1
1. Remove the radiator cap.
2. Open the radiator drain tap, 1, and collect the
coolant in a clean container.
50043781
139
3. Remove the radiator hose, 6, and bypass hose,
7, from the thermostat housing, 2. 5 6
8
4. Remove the retaining bolts, 8, and remove the
thermostat cover, 5, gasket, 4, thermostat, 3, and
gasket, 1. 4
3
1
2
7
140
10-79
2 1
1. Place the thermostat, 3, in a container filled with
a 50/50 mixture of antifreeze and water. Insulate 3
the thermostat from the bottom of the container.
2. Place a high temperature thermometer, 1, in the
coolant mixture and heat the container.
3. Use a 0.08 mm (0.003I) feeler gauge, 2, to
determine when the thermostat begins to open.
4. Note the coolant temperature at which the
thermostat starts to open and when it is fully
opened.
5. Replace the thermostat if it fails to open at the 141
specified temperature.
Thermostat opening temperature:
Start to open: 82°C (180°F)
Fully open: 95°C (203°F)
6. Thoroughly clean the gasket mating surfaces
before installing thermostat.
Installation
6
1. Attach gasket, 1, and thermostat housing, 2, to 5
8
the engine block.
2. Place the thermostat, 3, in position in the 4
thermostat housing, 2. 1
3. Install the gasket, 4, and thermostat cover, 5, and 3
tighten the retaining bolts, 8. 1
4. Install the radiator hose, 6, and bypass hose, 7, 2
on the thermostat housing, 2, and tighten the
7
hose clamps.
5. Close the radiator drain and refill the radiator with
50/50 mixture of antifreeze and pure water. 142
6. Install the radiator cap and start the engine and
run for a few minutes to check for any leakage.
10-80
SECTION 10 - ENGINE
Chapter 2 - Fuel System
CONTENTS

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Fuel Injection Pump Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Troubleshooting -- General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Troubleshooting -- Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Troubleshooting -- Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
10 242 Description of Operation -- Injection Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Effective Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10 244 Fuel Variation Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Delivery Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Injection Quantity Adjustment Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 244 CTD (Compact Timing Device) Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 214 Delivery Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
10 214 Injection Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Timing and Governor Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10 230 Original Pump and Drive Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
New Pump or Drive Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Spill-Timing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Bleeding the Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Fuel Setting -- Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Fuel Screw/High Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 230 Description of Operation -- Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
10-1

10 218 Description of Operation -- Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Assembly and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Engine Breather Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10-2
SPECIFICATIONS
Injection Pump TC29DA TC33DA

Pump Manufacturer Assembly # Zexel Zexel
104134 -- 3070 104134 -- 3050
Type In -- Line In -- Line
Timing (Before TDC) 22 -- 24° 21 -- 23°
Timing 3.837 – 4.534 mm 3.895 – 4.655 mm
(Piston Height at Injection: Start BTDC) (0.1510 – 0.1785 in.) (0.1533 – 0.1833 in.)
Injection Nozzle
Nozzle Type Throttle Throttle
Needle Valve Diameter (All Models) 0.4 mm (0.0157 in.) 0.4 mm (0.0157 in.)
Pintle Diameter (All Models) 1.0 mm (0.039 in.) 1.0 mm (0.039 in.)
Injection Pressure 118 bar (1706 psi) 147 bar (2150 psi)
Spray Angle 4° 4°
Service Adjustments
Idle Speed 1000 -- 1100 rpm 1000 -- 1100 rpm
Max. No – Load Speed 2975 – 3025 rpm 2975 – 3025 rpm
Torque Specification TC29DA TC33DA
Delivery Valve Holder 39.2 – 44.1 N⋅m 39.2 – 44.1 N⋅m
(28.9 – 32.5 ft. lbs.) (28.9 – 32.5 ft. lbs.)
Injector Assemble 59 – 69 N⋅m 59 – 69 N⋅m
(43 – 51 ft. lbs.) (43 – 51 ft. lbs.)
10-3
FUEL INJECTION PUMP SPECIFICATIONS
FUEL INJECTION PUMP (Field Check)

Use the following standards when checking/adjusting the fuel injection pump.
Standards for Injection Pump Adjustment

Model of Engine:
J843 Model TC29DA
N843 Model TC33DA
Pump Assembly
TC29DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 104134-3050
SHIBAURA Code No. 131017700
TC33DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 104134-3050
SHIBAURA Code No. 131017700
Standards for Adjusting the Injection Pump:

Rotating direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clockwise when observed from the front
Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NP-DN4PDN117
Nozzle holder
TC29DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105148-1170
TC33DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105148-1210
Nozzle valve opening pressure

TC29DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 bar (1706 +/-- 71 psi)
TC33DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 bar (2150 +/-- 71 psi)
Injection pipe
TC29DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 mm (0.079″) × 6 mm (0.236″) O.D.
× 340 mm (13.4″) length
TC33DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 mm (0.079″) × 6 mm (0.236″) O.D.
× 370 mm (14.5″) length
Fuel oil flow pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.193 bar (2.8 psi)
Test oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Light oil
SPECIAL TOOLS
Injector Nozzle Tester . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH01721
Injector Adapter Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH01728
10-4
TROUBLESHOOTING -- GENERAL
CONDITION CAUSE REMEDY

Fuel not reaching injection point Fuel shutoff valve closed Open the fuel shutoff valve
Restricted fuel filter Check and flush the fuel filter clean
Faulty fuel stop solenoid Check fuel stop solenoid. See

“Fuel Stop Solenoid”, Section 55
Air in fuel system Check for air leaks on the suction

side of system. Bleed the fuel
system
Fuel leakage Check the condition of the fuel lines

and connections for tightness or
possible damage
Fuel reaching nozzles but engine Low cranking speed Check cranking
will not start
Incorrect throttle adjustment Check throttle control or travel
Incorrect pump Check pump timing
Fuel Leakage Check all fuel lines for leakage or

possible damage
Faulty injectors See “Troubleshooting - Fuel

Injectors” later in this section
Low compression Check for air leaks on the suction

system
Engine hard to start Low cranking speed Check cranking
Incorrect throttle adjustment Check throttle control or travel
Restricted fuel filter Check and flush fuel filter clean
Contaminated fuel Check for water in fuel
Low compression Check engine compression. See

“Engine Compression Test”,
Section 10
Air in fuel Check for air leaks on the suction

side of system. Bleed the fuel sys-
tem
10-5

Engine starts and stops Low cranking speed Check cranking
Restricted air intake Check for restrictions in the air in-

take

tem
Engine overheating Check cooling system
Erratic engine operation (surge, Fuel leakage Check all fuel lines for leakage or
misfiring, poor governor regula- possible damage
tion)
Fuel starvation Check and flush clean restricted
fuel lines

tem
Faulty or sticking injector nozzles See “Troubleshooting - Fuel

Incorrect engine timing Check for improper valve adjust-

ment or faulty valve
Sticky hose cone Check nose cone for proper opera-

tion. Lubricate or replace if nose
cone is binding on end of camshaft.
Engine does not develop full power Incorrect throttle adjustment Check for insufficient throttle
or speed movement
Incorrect Maximum no-load speed Check maximum no-load speed

adjustment
Fuel starvation Check and flush clean restricted

fuel lines and filter

tem
Incorrect timing Check pump timing

tem

10-6

Engine emits black smoke Restricted air intake Check for restrictions in the air in-
take
Engine overheating Check cooling system
Incorrect timing Check pump timing
Faulty injectors See “Troubleshooting - Fuel


system

Pump fails to deliver fuel to all in- Blocked fuel lines to pump Remove fuel lines and flush or re-
jectors place
Air in system Check for air leaks on the suction

system
Control rod seized in “OFF” posi- Repair or replace control rod

tion
Pump fails to deliver fuel to one in- Air in fuel line to injector Bleed fuel line
jector
Plunger spring broken Replace spring
Plunger seized Repair or replace barrel and plung-

er assembly
Delivery valve seized Repair or replace delivery valve
Badly scored plunger and barrel Replace plunger and barrel

assembly
Governor fails to maintain maxi- Control spring broken Replace control spring
mum or minimum no-load fuel de-
livery Governor weights seized Repair or replace weight assembly
and/or camshaft
Governor weight carrier broken Replace weight assembly
Nose cone seized Replace nose cone and/or camshaft
Pump link spring broken Replace spring
10-7
TROUBLESHOOTING -- FUEL INJECTORS

Nozzle does not “buzz” while in- Needle valve stuck Check needle valve for carbon
jecting build-up and binding
Excessive fuel leakage Check valve and valve seat for

scores or other indications of leak-
age
Nozzle damage Inspect faces and tighten nozzle

retaining nut
Nozzle leakage Needle valve worn Replace nozzle assembly
Blocked nozzle assembly Check for carbon or foreign matter

on faces of nozzle and nozzle hold-
er. Flush, clean, or replace.
Loose nozzle retaining nut Inspect faces and tighten nozzle

retaining nut
Nozzle opening pressure incorrect Incorrectly adjusted nozzle retain- Check retaining nut for looseness
ing nut
Damaged nozzle or seized needle Replace nozzle assembly

valve
Blocked nozzle orifice Check orifice for carbon or foreign

matter. Flush clean or replace.
Nozzle seat leakage Nozzle incorrectly seated Check for carbon or foreign matter
on faces of nozzle and nozzle hold-
er. Flush, clean, or replace.
Sticking or binding needle valve Repair or replace nozzle assembly
10-8
TROUBLESHOOTING -- GOVERNOR

Sluggish governor response Nose cone binding on camshaft. Replace or lubricate nose cone on
end of camshaft.
Fuel rack binding in injection pump. Lubricate rack with penetrating oil
or submerse rack mechanism in
automatic transmission fluid. Re-
pair or replace injection pump.
Governor weights binding on pivot Repair governor assembly.

pins.
Linkage arm between governor Straighten or replace linkage arm

linkage and injection pump rubbing assembly.
on cylinder block.
Binding of throttle arm pivot shaft. Lubricate or replace throttle arm

shaft.
Engine runs away (excessive Nose cone stuck at “in” position. Replace nose cone or check cam-
speed) shaft for binding.
Linkage arm between governor Repair or replace linkage arm as-

linkage and injection pump stuck. sembly.
Fuel rack stuck in full fuel position. Lubricate or repair injection pump.
Engine will not develop rated Fuel screw adjusted too far into en- Contact New Holland representa-
speed gine block. tive for adjustment.
Fuel rack stuck in low fuel position. Lubricate or repair injection pump.
Engine speed surging Broken dampener spring on link- Replace dampener spring.
age arm.
Damaged governor spring. Replace governor spring.
Worn linkage. Inspect and repair linkage as

needed.
10-9
9
1 10
5 11
7 12
13
8 14
1
1. Five-Sided Bolt 6. Plunger Barrel 11. Eye Bolt
2. Sleeve Flange 7. Control Sleeve 12. Plunger
3. Delivery Valve Spring 8. Tappet 13. Control Rack
4. Delivery Valve Seat 9. Delivery Valve Holder 14. Plunger Spring
5. Delivery Valve 10. Pump Housing
DESCRIPTION OF OPERATION -- INJECTION PUMP

Op. 10 242
The injection pump is mounted in the engine’s cylin- plunger, the fuel oil pressure increases. The fuel oil
der block. It does not have a camshaft, but is driven then raises the delivery valve, 5, and is delivered
by the engine’s camshaft. Plunger, 12, movement is through the injection pipe to the nozzle holder. When
constant, being raised by tappet, 8, and returned by the fuel oil pressure exceeds the force of the nozzle
the plunger spring, 14, as the engine rotates. The spring’s set force, fuel is injected into the engine’s
plunger barrel’s, 6, suction and discharge port opens combustion chamber in the form of a fine spray.
onto the pump housing’s fuel oil chamber, which is al-
ways filled with fuel. The plunger further ascends, and when the plunger
helix meets the plunger barrel’s suction and dis-
When the plunger descends, fuel oil is sucked into charge port, fuel delivery ends (at the same time in-
the plunger barrel, and when the plunger reaches it’s jection from the nozzle ends). The delivery valve is
lowest point, the suction of fuel oil stops. then closed by the set force of the delivery valve
spring so that fuel oil is no longer delivered, even
The plunger then ascends, and when the plunger though the plunger continues to ascend.
barrel’s suction and discharge port is closed by the
10-10
EFFECTIVE STROKE
The effective stroke is from the moment that the
plunger barrel’s suction and discharge port is closed
by the end of the plunger (beginning-of-injection) un-
til the suction and discharge port meets the plunger
helix (end-of-injection). The effective stroke can be
altered by rotating the plunger. Accordingly, the rela-
tionship between injection quantity and effective
stroke is proportional.
20000731
2
Op. 10 244
4 2
FUEL VARIATION MECHANISM
As well as pressurizing the fuel oil, the injection pump 5
also functions to vary the fuel injection quantity.
A control sleeve, 1, is installed around the plunger

barrel, 2, and a flange, 3, on the bottom of the plung-
er, 4, is inserted into a groove in the control sleeve.
Teeth on the control sleeve are engaged with teeth
on the control rack, 5, so that movement of the control
rack results in rotation of the plunger and, conse-
1 3
quently, variation of the fuel injection quantity.
Non Delivery Partial Delivery Maximum Delivery
10-11
DELIVERY VALVE
The delivery valve assembly consists of the delivery 1
valve and the valve seat.
When the force of the high-pressure fuel oil delivered 2

by the plunger exceeds the force of the delivery valve
spring, 1, the delivery valve, 2, opens and fuel oil is
delivered through the injection pipe to the nozzle Retraction
holder. Stroke
After injection, the injection pipe retains a degree of

residual pressure adequate for the subsequent injec-
tion. The delivery valve prevents the reverse flow of
this fuel oil in the injection pipe to the plunger side. If
the residual pressure is too high, then the flow of fuel 5
oil will not be properly cut after injection.
By allowing the fuel oil in the injection pipe to retract

an amount equal to the piston’s retraction stroke, the
delivery valve improves the ability of the nozzle to cut
injection, as well as preventing dribbling.
Delivery Valve (for variable retraction pistons)

As can be seen in Figure 6, the delivery valve’s pis-
ton has been chamfered.
As delivered fuel escapes from this chamfer at low

speeds, valve lift is smaller than that of the standard
delivery valve. This results in a smaller retraction
stroke and therefore a residual pressure appropriate
for the subsequent injection can be retained in the in-
jection pipe. t : Retraction piston
diameter “shaved”
At high speeds, however, the throttling effect of the amount
chamfer causes a decrease in the quantity of fuel es- 20032732
caping and an end to the effect of the chamfer. The
delivery valve then operates in the same way as the 6
standard delivery valve.
Damping Valve Equipped Delivery Valve Holder
The delivery valve holder equipped with a damping
valve functions to prevent cavitation in the injection
pipe, irregular injection, and secondary injection dur-
ing high-speed operation.
When high-pressure fuel is delivered from the plung-

er, the delivery valve is opened. Because the damp-
ing valve is also opened at the same time, most of the
fuel oil flows past the outside of the damping valve to
the nozzle. After injection, however, as the damping
valve closes more quickly than the delivery valve,
fuel oil can only flow through the damping valve’s
small orifice. Because of this the delivery valve seats
more slowly, preventing any sudden decrease in the
pipe’s in-line pressure.
At the same time pressure wave surges in the pipe 20032733

are suppressed, enabling stabilized injection.
7
10-12
INJECTION QUANTITY ADJUSTMENT

MECHANISM
The plunger barrel is fixed to the sleeve flange by a
pin.
Because the plunger barrel also rotates when the

sleeve flange is rotated, the relationship between the
positions of the plunger helix and the plunger barrel’s
suction and discharge port changes, as does the ef-
fective stroke.
For example, when a right-hand helix plunger’s

sleeve flange is rotated clockwise, the effective 20032734
stroke is increased, thereby increasing the fuel injec-
tion quantity. 8
Op. 10 244
CTD (COMPACT TIMING DEVICE) 2
MECHANISM
NOTE: The CTD (Compact Timing Device) mecha-
nism is installed on the tractors to reduce noise,
smoke, and exhaust gas emission etc.
When the plunger, 1, descends, fuel oil is sucked into

the barrel, 2, and when the plunger reaches its lowest
point, the suction is finished.
1
SUCTION
9
In case of the standard plunger, the plunger then as-
cends, and when the barrel’s main port, 3, is closed 4
by the plunger, the fuel oil pressure increases, and
3
the fuel delivery starts.
CTD type plunger, 4, (the barrel has sub port, 5), 5

whether the fuel delivery starts or not is determined
by the engine’s rev speed. When the engine’s rev
speed is low, the delivery does not start, because the
sub port is still opened, and fuel oil pressure does not
increase. But, when the engine’s rev speed is high,
the sub port’s diameter is so small that it can be con-
sidered as being closed. For this reason, fuel oil pres- DELIVERY START (HIGH SPEED)
sure increases and the delivery starts.
10
10-13
The plunger further ascends, and when the barrel’s
sub port, 5, is closed by the plunger, the fuel oil pres-
sure increases and the delivery starts, regardless of
the engine’s rev speed. 5
DELIVERY START (LOW SPEED)
11
The plunger further more ascends, and when the
plunger main, 6, lead meets the barrel’s main port,
the fuel oil pressure decreases, and the fuel delivery
ends.
DELIVERY END
12
The fuel injection pump, 1, is a constant stroke type
pump and has one pumping element for each cylin-
der. The injection pump operates at one-half engine
speed.
13
10-14
Op. 10 214
DELIVERY VALVES
Located above each pumping element is a delivery 1 2 3 4
valve assembly. The delivery valve consists of a de-
livery valve holder, 1, spring, 2, piston and stem as-
sembly, 3, operating within a cylindrical guide, 4,
which terminates in a conical seat. The lower part of
the stem has four vertical flutes which accurately lo-
cate within the guide while permitting fuel to pass.
Above the flutes is a piston which is a lapped fit in the
bore of the valve guide.
The delivery valve serves as a non-return valve and

also as a means of rapidly reducing the fuel pressure 14
in the injector line when injection ceases. Rapid pres-
sure reduction is required to be sure injector needle
valve “snaps” shut to prevent fuel “dribble”, a condi-
tion which can cause carbon formation on the injector
tip.
10-15
4
1
3 2
A. Valve Closed B. Valve Open C. Valve Closing
15
1. Piston 3. Conical Seat
2. Valve Guide 4. Spring
The delivery valve operates as follows: Position C: The helical groove has uncovered the in-
let port and released the fuel pressure. The delivery
Position A: The pump plunger is at the bottom of the valve spring, aided by the high pressure still existing
stroke and the inlet ports are uncovered, so the barrel in the pipeline, forces the delivery valve to close rap-
and delivery guides are filled with fuel. As the fuel is idly.
at low pressure, the delivery valve is retained on the
seat by spring pressure. During closing, the piston portion of the valve return-
ing into the guide increases the volume of the injector
Position B: The plunger has risen and closed both line by the volume of this part of the valve.
inlet ports, pressurized the fuel and the injection pro-
cess begins. The pressurized fuel overcomes the This sudden increase in the volume of the injector
spring tension, lifting the delivery valve off its seat un- line causes a rapid collapse of pressure and allows
til the piston is clear of the guide, permitting fuel to the injector needle valve to “snap” shut.
pass to the injector.
10-16
Op. 10 214
2
INJECTION PUMP
Removal
1. Remove the fuel injection lines, 1, by loosening
nuts, 2, on the injectors and nuts, 3, on the
injector pumps. Cap all openings to prevent
contamination.
1
16
2. Disconnect the throttle control cable, 1, from the
timing gear cover lever, 2.
2
17
3. Disconnect the fuel inlet line, 1, on the injection
pump by loosening bolt, 2. Disconnect the engine
fuel stop solenoid lead, 3, then unscrew the 1
solenoid, 4, from the fuel injection pump housing.
2
3
4
18
10-17
4. Remove the injection pump mounting nuts and
bolts. Raise the pump and remove the spring pin,
3, and separate the governor link, 2, from the
pump control rack, 1, Figure 20. 3
5. Remove the injection pump.
NOTE: If there are shims between the pump
mounting flange and the engine block, carefully
remove the shims and retain for installation.
2
19
Repair
If an injection pump is suspected of being faulty, it
should be tested and repaired by an authorized
Diesel Service Station only.
NOTE: During tractor warranty period, if injection

pump is diagnosed as faulty, replace injection pump.
Do not repair.
20
10-18
Installation
6
Installation generally follows removal procedures in
reverse.
1. Attach pump rack to governor linkage. 2

2. Install injection pump assembly into engine
housing.
1
3. Install fuel solenoid, 4, into rear of injector
housing and connect lead, 3. 5
4. Connect fuel inlet line, 1, by tightening bolt, 2.
5. Install injector lines, 5, by tightening nuts, 6, at 3
the injectors and nuts, 7, at the pump.
4 7
If the pump is being replaced or if the timing is
unknown, proceed to “Timing and Governor
Adjustment,” discussed later in this section. 21
After installation bleed air from the fuel system. See

“Bleeding the Fuel System,” discussed later in this
section.
10-19
TIMING AND GOVERNOR ADJUSTMENT
Op. 10 230
ORIGINAL PUMP AND DRIVE
COMPONENTS
Installation
1
NOTE: The engine stop solenoid must be removed
before installing the pump.
1. Position the injection pump in the block using the

original shim gasket, 1, or a new one of the same
thickness.
22
2. Connect the governor link, 2, to the pump control
rack, 1, and secure with spring pin, 3.
23
NOTE: Check the control rack, 1, for any binding
conditions by moving the pump control lever back
and forth.
3. Install the pump mounting nuts and bolts and

tighten to 13 - 17 N⋅m (10 - 13 ft. lbs.).
4. If necessary to verify pump timing, spill-time the
pump as outlined in “Spill-Timing Procedure,”
24
10-20
NEW PUMP OR DRIVE COMPONENT

Installation
NOTE: The engine stop solenoid must be removed
before installing the pump.
1
1. Position the pump in the block using a new shim
gasket, 1, of 0.5 mm (0.020″) thickness.
25
2. Connect the governor link, 2, to the pump control
rack, 1, and secure with the spring pin, 3.
26
NOTE: Check the control rack, 1, for any binding
conditions by moving the pump control lever back
and forth.
3. Install the pump mounting bolts and tighten to

13 - 17 N⋅m (10 - 13 ft. lbs.).
4. Spill-time the pump. See “Spill-Timing Proce-
dure,” discussed later in this section.
27
10-21
SPILL-TIMING PROCEDURE
3 2
1. Remove the head cover, 1, from the top of the
engine, by loosening bolts, 2, and cap nuts, 3.
2. Find top dead center of the No. 1 cylinder (No. 1
cylinder is the closest to the engine fan). No. 1
cylinder must be on the compression stroke. 1
(Intake and exhaust rocker arms will be loose.)
20043777
28
3. Remove the rocker arm housing and rocker arm
assembly, 1, from the engine. 1
20043779
29
4. Remove the keepers and spring from No. 1
cylinder intake valve, 1. 1
30
10-22
5. To verify true top dead center of piston travel,
install a dial indicator, 2, on the valve stem (No. 2
1 cyl.), 1. Be sure the valve stem is sitting on top
of the piston. Rotate the crankshaft until the
indicator needle reverses direction. The point the 1
needle reverses direction is true top dead center.
31
6. Verify that the timing mark on the crankshaft
pulley is in line with the “TOP” mark on the timing
scale. If the mark on the crankshaft pulley is not
in line with the “TOP” mark, verify piston top dead
center by repeating step 5. If the pulley mark is
slightly off, remark the pulley and proceed.
NOTE: Color the timing mark on the crankshaft
pulley and appropriate marks on the timing scale to
increase visibility.
7. Reinstall the valve spring, keepers, rocker arm

assembly, housing and valve cover.
32
8. Shut off the fuel supply at shutoff valve, 1, to the
injection pump at the fuel filter, 2. 1
33
10-23
9. Remove the No. 1 injection line, 1.
1
34
10. Remove the delivery valve piston, 1, from the No.
1 delivery valve.
35
11. Reinstall the holder, 1, with spring into the
injection pump and tighten securely. Insert a
small diameter wire down through the holder, 1,
and bend a hook on the end of the wire to hold the
spring, washer, and the valve in the holder, while
re-installing in the injection pump. Remove the
wire just prior to the holder being seated in the
pump.
36
10-24
12. Fabricate a spill tube, 1, from a discarded
injection line and install the tube on the No. 1 port
on the injection pump.
13. Remove the fuel shutoff solenoid from the
injection pump.
37
14. Rotate the crankshaft counterclockwise (viewed
from the front of the engine) approximately 40°.
38
15. Turn on the fuel supply at shutoff valve, 1, to the
injection pump at the filter, 2. Fuel should flow out 1
of the spill tube on the No. 1 cylinder port.
16. If installed, remove the engine stop solenoid.
17. Place governor lever, to full throttle position.
NOTE: The rack must be completely open and
accurately match timing, for CTD pump. 2
39
10-25
18. Rotate the crankshaft clockwise. When the TC29DA 20° -- 22°
timing mark on the crankshaft pulley is in line with TC33DA 21° -- 23°
the below degree marks on the scale, fuel should
stop flowing from the spill tube.
Engine/Model Degree
J843/TC29DA 22 -- 24° BTDC
N843/TC33DA 21 -- 23° BTDC
40
19. If fuel does not stop flowing at the appropriate
timing mark, the injection pump timing must be
adjusted by adding or removing shims, 2, located
between the injection pump, 1, and the engine
block, 3.
20. Adding shims will retard the pump timing and 3
removing shims will advance the pump timing.
NOTE: A shim thickness of 0.1 mm (0.3937″) will
change the pump timing by 1.16 degree on Model
TC29DA and 0.96 degree on Model TC33DA. 1
21. Assemble all components that were removed
2
from the engine and fuel system.
41
BLEEDING THE FUEL SYSTEM

Bleed the fuel system after any of the following
conditions:
1. When a new filter is installed.

2. After the tractor has run out of fuel.
3. When any of the fuel lines have been
disconnected.
4. When the injection pump has been removed.
10-26
Bleeding Procedure
1. Ensure adequate fuel is in the fuel tank and the
fuel shutoff valve is open.
2. Open the bleed screw, 1, on the injection pump.
1
42
3. Set the throttle, 1, in the full open position and
crank the engine for a few seconds to allow the
air to be expelled from the injector lines.
43
4. If the engine does not start, loosen the injector
lines at the injectors, 1, one at a time while 1
cranking the engine.
5. Be sure all lines are properly torqued when
completed.
44
10-27
FUEL SETTING -- ADJUSTMENT
FUEL SCREW/HIGH IDLE

The correct adjustment is required to reset to the
original production setting to ensure the engine will
be within the certified emission limits.
NOTE: EPA engine is certified to EPA emission

legislation.
No one is permitted to adjust the fuel flow rate more

than the max figure of submitting for power setting.
Adjustment only made by New Holland Area Service

Managers, due to EPA emission regulations.
45
Contact New Holland representative for adjust-
ment of fuel setting, 1, on high speed idle, 2.
10-28
DESCRIPTION OF OPERATION -- GOVERNOR
Op. 10 230
The governor assembly is mounted on the forward A 2
end of the camshaft. To disassemble and assemble 1
the governor assembly, see “Governor Case
Disassembly” and “Governor Assembly Case,”
discussed in Section 1.
As the engine speed increases the throttle arm, 1,

contacts the fuel screw adjuster at contact point A,
B
and the high-speed idle stop screw at B. During the
engine speed increase tension is placed on the
governor spring, 2.
46
As engine speed increases the four governor
weights, 1, pivot outward and push on the slider
cone, 2. The weights and slider cone are located on
the end of the camshaft. 1
1 2
50043780
47
The slider cone, 2, (fig. 47) contacts the governor
linkage arm, 1, at contact pad, C. As the cone moves
forward it pushes the linkage arm, 1, forward, which
is connected to the injection pump rack assembly. 1
When the injection pump rack moves forward the fuel
delivery is decreased and the engine speed
decreases.
C
48
10-29
As the engine speed decreases the governor
weights, 1, pivot inward allowing the slider cone, 2,
to move rearward.
As the slider cone, 2, moves rearward, the governor

1
linkage arm, 1, allows the fuel injection pump rack to
move rearward to the full fuel position and the engine
speed increases.
1 2
50043780
49
Engine speed depends upon several factors. The
throttle setting determined by governor spring
tension. The pressure exerted by the slider cone on
the governor linkage, and positioning of the injection 1
pump rack.
All the governor linkage parts are located inside the

engine timing gear cover, 1. To inspect or replace any
of the governor linkage parts, the timing gear case
and injection pump must be removed from the
engine. As discussed earlier in Section 1.
50
10-30
9 3
10 8
7 6
3 1
4
2
15
16 11
13 12
14
51
1. Timing Gear Cover (Case Assembly) 9. Throttle Arm
2. Linkage/Spring Lever Assembly 10. O Ring
3. E-Snap Ring 11. Throttle Lever
4. Spacer Washer 12. Linkage Pivot Shaft
5. Dampener Spring 13. O Ring
6. Linkage Arm 14. E-Snap Ring
7. Spring Holder Stay 15. Throttle Cable Stay
8. Governor Spring 16. Throttle Cable Stay Spring
GOVERNOR
Disassembly
1. Remove injection pump and timing gear cover 4. Remove E-ring, 14, from the outside end of
from the engine as discussed in the Engine linkage pivot shaft, 12. Pull pivot shaft, 12, out of
section. the timing case. Inspect O ring, 13, on shaft.
Replace if damaged.
2. Remove the timing gear cover, 1, from the front
of the engine. Remove throttle lever, 11, from the 5. Remove linkage arm assembly, 6, from the
outside end of throttle arm, 9. timing cover, 1. Remove governor spring, 8, and
dampener spring, 5, from the linkage. Check
3. Remove E-ring, 3, from throttle arm, 9. Push arm
spring holder arm, 7, making sure it pivots freely.
into timing cover until. There is enough space to
Confirm that spacer washer, 4, is installed
remove governor spring, 8. Remove governor
between arm and arm base. Also make sure the
spring, from throttle arm, 9. Now, remove throttle
E-ring, 3, is installed in the groove of spring
arm from timing cover. Inspect O ring, 10, that is
holder arm. Check all pivot points, slot and pin
on the arm. Replace the O ring if it is damaged.
locations for any signs of wear. Replace the
Remove throttle cable stay, 15, from timing gear
linkage/spring lever assembly, 2, if wear is
cover, 1.
present.
10-31
15
2 1 5
10
6 3
11
4
2
12
14
13
9 7 8
52
1. Governor Spring 9. E-Snap Ring
2. Throttle Arm 10. O Ring
3. Linkage Arm 11. E-Snap Ring
4. Spacer Washer 12. Throttle Cable Stay
5. E-Snap Ring 13. Throttle Lever
6. Spring Holder Stay 14. Throttle Cable Stay Spring
7. O Ring 15. Dampener Spring
8. Linkage Pivot Shaft
Assembly spring is installed from the outside of the arm. Once

the spring is installed, push the rest of throttle arm
1. Install governor spring, 1, onto throttle arm, 2.
into the case. Insert E-ring, 11, into the groove of
NOTE: Spring is installed onto front spring holder the throttle arm.
arm with spring inserted from the inside of the arm.
4. Install throttle cable stay, 12, onto timing gear
cover. Install throttle lever, 13, onto the throttle
2. Place linkage arm assembly, 3, into case. arm, 2. Align the slot, A, in the throttle lever, with
NOTE: Check that spacer washer, 4, is installed the groove, B of the throttle arm, Figure 55.
between spring holder arm and base. Confirm E-ring, Retain lever to arm by tightening clamp bolt and
5, is installed into groove of spring holder arm, 6. nut. After the clamp bolt is tightened, pivot throttle
lever back and forth to check if all the linkage
The shaft is orientated with tapered end towards pivots freely. Install throttle cable stay spring, 14,
outside of case. With O ring, 7, installed and the to throttle lever, 13, and throttle cable stay, 12.
shaft lubricated, insert pivot shaft, 8, into case. 5. Install dampener spring, 15, onto linkage arm
Install shaft through linkage arm, 3, until O ring is and timing cover. The long leg of the spring is
in the cover. Install E-ring, 9, onto shaft, then inserted into the timing cover.
push shaft into case until E-ring touches case.
NOTE: When installing timing case onto engine
3. Install throttle arm, 2, with O ring, 10, from the
block, make sure dampener spring stays in retaining
inside of the case, until the O ring engages into the
hole of case.
case. Install other end of governor spring, 1, into
the slotted hole of the throttle arm. This end of the
10-32
NOTE: Make sure dowel, 1, aligns with guide hole,
2, on the oil pump cover. Chapter 1 -- Engine.
53
2
50043776
54
NOTE: The aligning of the slot, A, in the lever with the
groove, B, in the arm properly indexes the lever and
attaching cables to the internal linkage.
B
A
55
10-33
DESCRIPTION OF OPERATION -- INJECTORS
Op. 10 218
Pintle type injectors are used in all engine 1
2
applications. The injectors have a 1.0 mm (0.039″)
single orifice and are set at 148 bar (2150 psi) for 3
TC33DA; and 118 bar (1706 psi) for TC29DA. The
pressure adjustment is made by adding or deleting 4
shims, 5, from the top of the injector pressure
adjusting spring. The pintle type injectors have an 5
injection angle of 4°. The injector pipes are of the 6
same length for each cylinder to help keep the 8
injection intervals in time. 7
Each injector consists of a nozzle assembly, 9, a 9 10

nozzle holder/ nut, 10, and injector needle valve
regulating spring, 6, spacer, 8, push rod, 7, injector
body, 4, leak off-line, 2, washer, 3, and nut, 1.
56
The engine injection function is to inject fuel into a
1. Nut
pressurized cylinder in a fully atomized condition
2. Leak-Off Line
which provides efficient combustion with minimum
3. Washer
amount of smoke.
4. Injector Body
5. Shims
6. Spring
7. Push Rod
8. Spacer
9. Nozzle Assembly
10. Nozzle Nut
Fuel from the injection pump enters the injector fuel

inlet, 1, and passes down through a drilling in the 1
nozzle holder and body, 2, to the needle valve seat, 4.
To provide lubrication of the injector, a small amount 3

of fuel is permitted to leak up between the needle
valve and the nozzle body. The excess fuel rises to
the top of the injector and returns to the fuel tank
through the injection return line, 3. 2
4
Injector Assembly
57
10-34
The fuel, pressurized by the injection pump, lifts the
needle valve off the seat against the action of the
spring pressure, B. The fuel is then forced, in the
atomizing state, through the 1 mm (0.039″) orifice in
the nozzle tip, C. When pressure from the injection
pump drops, the needle valve snaps back onto its
seat under pressure from the spring, A.
A B C
58
A. Nozzle Closed
B. Nozzle Initial Opening
C. Nozzle Fully Opened
INJECTORS
Removal
1. Clean all dirt, oil, and grease from the injectors,
2, and surrounding areas.
2. Disconnect the fuel lines, 1, from the injectors, 2, 3
and cap all openings. 2
3. Remove the fuel leak-off line, 3.
59
4. Remove the injectors, 1, and sealing washers, 2.
60
10-35
Disassembly
1
1. Loosen and remove the nozzle nut, 10, from the 2
nozzle body, 9, being careful not to drop or 3
damage the nozzle.
2. Remove the nozzle assembly, 9, spacer, 8, push 4
rod, 7, spring, 6, and shim(s), 5.
5
3. Clean the nozzle body and needle and check the 6
nozzle for any burn or score marks. Check the
needle seat for evidence of fuel leakage or 7 8
carbon deposits.
4. Correct fuel leakage at the seat using a polishing 9 10
stick and polish the seat area.
5. Inspect the upper and lower contact surfaces of
the nozzle holder and spacer to assure a clean
contact surface area. 61
1. Nut
6. Clean the nozzle spray orifice hole using a 1.0 2. Leak-Off Line
mm (0.040″) wire in a pin vice. 3. Washer
4. Injector Body
5. Shims
6. Spring
7. Push Rod
8. Spacer
9. Nozzle Assembly
10. Nozzle Nut
Assembly and Adjustment

1
Clean all parts in clean fuel oil and assemble
while still wet. 2
1. Install shim(s), 5, spring, 6, push rod, 7, spacer,
8, and nozzle assembly, 9, in the injector body, 4. 3
2. Install the nozzle nut, 10, and tighten to 29 - 4
33 ft. lbs. 5
3. Check and adjust the injector pressure setting 6
using injector nozzle tester No. NH01721 and
adapter fitting No. 23622. Adjust the pressure 7
setting to 148 bar (2150 psi) for TC33DA; and
118 bar (1706 psi) for TC29DA, adding or 8
removing shims, 5. 10
62
1. Nut
2. Leak-Off Line
3. Washer
4. Injector Body
5. Shims
6. Spring
7. Push Rod
8. Spacer
9. Nozzle Assembly
10. Nozzle Nut
10-36
50043786
63
ENGINE BREATHER VALVE
1. When the gas (created by combustion) passes
through the piston ring, the gas is called
“blow-by-gas”.
2. When the crankcase pressure is less than 25 mm
Aq., the valve closes and the blow-by-gas is
trapped in the crankcase.
3. The blow-by-gas flows into the oil mist separator
and when crankcase pressure increases to
approximately 25 mm Aq. the valve opens. The
valve opening allows blow-by-gas to pass into
the intake manifold and be burned with the
aspirated air.
4. Therefore, the pressure inside of the crankcase
must be maintained from 25 to 100 mm Aq. so
that the blow-by-gas can not be discharged into
the air.
5. EPA Tier 2 requires the internal breather systems
for all naturally aspirated engines except the
turbocharged engines.
10-37
The breather valve, 1, is located atop the head cover.
Under the breather valve housing, is a diaphragm,
that allows the engine to recirculate combustion 1
gases, when the crankcase pressure builds.
Removal
1. Remove the four screws, 2, and pull breather
valve, 1, from head cover.
50043783
64
The breather valve consists of the following: Cover,
1, Spring, 2, Spring Retainer, 3, Diaphragm, 4.
NOTE: The breather valve must be replaced as an 2 3

assembly, not by individual pieces.
1 4
50043784
65
Installation
1. Place breather valve, 1, onto head cover. Make
sure vent hole, 2, is toward the front of the tractor, 1
for easy access and fasten with four bolts, 3.
IMPORTANT: Always keep small vent hole, 2, free of 2
oil and other debris, as to allow the crankcase, to vent
properly.
50043783
66
10-38
TROUBLE SHOOTING
Engine emitting a bluish smoke Excessive blow by gases of engine. Replace piston rings, hone cylinder
Possible worn piston rings or walls to seat new rings.
scored cylinder walls.
Engine breather valve is stuck in Replace engine breather valve

“OPEN” position. Valve diaphragm diaphragm.
is damaged allowing valve not to
close.
Oil mist separator mesh screens Replace oil mist separator mesh
allowing oil to enter intake manifold screens.
damaged or missing separator
mesh screens.
Engine seals leaking oil Excessive crankcase pressure. Inspect diaphragm for damage or
High pressure caused by breather contamination. Replace diaphragm
valve not opening. if necessary.
Vent hole in valve body plugged. Remove valve body from engine
and clean vent hole.
10-39
10-40
SECTION 18 -- CLUTCH -- CHAPTER 1
SECTION 18 - CLUTCH
Chapter 1 - Clutch
CONTENTS

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Description of Operation -- Single Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
HST Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Free-Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Single Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Release Lever Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Description of Operation -- Double Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 x 3 Gear Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Free-Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PTO Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Double Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Double Clutch Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Servicing Clutch-Related Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Clutch Pilot Bearing (9 x 3 Transmission Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
18-1

Clutch Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Clutch Release Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Clutch Linkage Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Clutch Cross Shaft Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Clutch Pedal Bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
18-2
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

1. Excessive clutch pedal 1. Worn clutch disc. 1. Replace disc.
free-play or loss of adjustment 2. Clutch linkage out of 2. Adjust linkage.
reserve. adjustment.
2. Clutch noisy when free. 1. Defective release bearing. 1. Replace bearing.
2. Defective clutch pilot bearing. 2. Replace bearing.
3. Clutch slipping. 1. Incorrect pedal free-play. 1. Adjust free travel.
2. Worn disc facings. 2. Replace disc.
3. Clutch pressure springs weak 3. Overhaul or install new clutch
from overheating. assembly.
4. Clutch fails to engage 1. Defective clutch disc. 1. Replace disc.
smoothly. 2. Defective pressure plate 2. Replace pressure plate
assembly. assembly.
3. Worn clutch pilot bearing. 3. Replace bearing.
4. Defective flywheel. 4. Replace flywheel. See
“Flywheel Removal/Assembly”
procedures, Section 1.
5. Difficulty in engaging gears. 1. Pedal free travel out of 1. Adjust pedal free travel.
adjustment.
2. Damaged or out of adjustment 2. Repair, replace, or adjust
release levers. release levers.
6. Pedal will not return 1. Broken clutch pedal return 1. Replace spring.
completely to release position. spring.
18-3
SPECIFICATIONS
MODEL TC29DA HST MODEL TC33DA HST MODEL TC29DA -- 9 x 3

TC33DA -- 9 x 3
ITEM SINGLE CLUTCH SINGLE CLUTCH DOUBLE CLUTCH
No. of Clutch Plates 1 (2 Facings) 1 (2 Facings) 2 (4 Facings)
Facing:
Outside Diameter 215 mm (8.46″) 225 mm (8.86″) 215 mm (8.46″)
225 mm (9.86″) Trans
215 mm (8.46″) PTO > TC33DA
Inside Diameter 130 mm (5.12″) 150 mm (5.90″) 150 mm (5.90″)
Thickness 3.2 mm (0.1259″) 3.2 mm (0.1259″) 3.2 mm (0.1259″)
Height of Release Lever 54 +/-- 0.6 mm 35.5 +/-- 1.0 mm 96.5 +/-- 0.7 mm
(2.3″ +/-- 0.0197″) (1.40″ +/-- 0.04″) (3.80″ +/-- 0.276″)
Clearance Between 0.50 - 0.1 mm 0.50 - 1.00 mm 0.050 - 0.1 mm
Driveshaft and Clutch Disc (0.0078 - 0.0039″) (0.0078 - 0.0137″) (0.0028 - 0.11″)
Allowable Clearance Limit 0.6 mm (0.0236″) 0.6 mm (0.0236″) 0.25 mm (0.0098″)
Clearance Between 0.050 - 0.1 mm 0.2 - 0.35 mm 0.050-0.1 mm
Driveshaft and Clutch Disc (0.0019 - 0.0039″) (0.0019 - 0.0039″) (0.0019 - 0.0039″)
in the Rotational Direction

Clearance Between 0.025 - 0.1 mm 0.025 - 0.1 mm 0.025 - 0.1 mm
Retainer and Hub (0.009 - 0.0039″) (0.009 - 0.0039″) (0.009 - 0.0039″)
Length of Release Hub 1.28″ 1.28″ 1.28″
Return Spring (32.5 mm) (32.5 mm) (32.5 mm)
Thickness of Clutch Disc 8.6 mm (0.34″) 8.0 mm (0.315″) 8.1 mm (0.32″)
Main and PTO
Allowable Limit 7.2 mm (0.28″) 7.2 mm (0.28″) 7.2 mm (0.28″)
Depth of Clutch Rivets 1.2 mm (0.0472″) 1.2 mm (0.0472″) 1.2 mm (0.0472″)
Allowable Limits 0.3 mm (0.012″) 0.3 mm (0.012″) 0.3 mm (0.012″)
Height of Release Lever 54 mm (2.13″) 35.5 mm (1.40″) 96.5 mm (3.80″*)
from Flywheel Surface
Allowable Limit 53.2 - 54.8 mm 34.5 - 36.5 mm 35.8 - 37.2 mm
(2.09 - 2.16″) (1.36 - 1.44″) (3.77 - 3.83″)
Deflection of Clutch Disc Max. 1.0 mm (0.039″) Max. 1.0 mm (0.039″) Max. 1.0 mm (0.039″)
Standard Clutch Pedal 19 - 30 mm 19 - 30 mm 19 - 30 mm
Free-Play (0.79 - 1.18″) (0.79 - 1.18″) (0.79 - 1.18″)
Flywheel Surfacing 1.27 mm 1.27 mm 1.27 mm
Maximum Limit (0.050″) (0.050″) (0.050″)
18-4
SPECIAL TOOLS
Gauge—Lever height adjustment single clutch TC29DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH 01300

Gauge—Lever height adjustment double clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH 01267
Alignment arbor—TC29DA single clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH 00091
Alignment arbor—TC33DA single clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH 01260
Alignment arbor—TC29DA--TC33DA double clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FNH 00077
BOLT TORQUES
Flywheel Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 - 96 N⋅m (43.4 - 51 ft. lbs.)
Clutch Mounting Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22.6 - 28.4 N⋅m (16.6 - 21 ft. lbs.)
18-5
DESCRIPTION OF OPERATION -- SINGLE CLUTCH
HST TRANSMISSION
3
A single disc clutch is standard equipment on the 2 4 5
Model TC29DA and TC33DA tractors equipped with
HST drive transmission.
1 6
1
1. Clutch Pressure Plate
2. Clutch Disc
3. Flywheel
4. Clutch Release Bearing
5. Hub
6. Return Spring
The clutch assembly consists of the clutch pressure

plate, 1, clutch disc, 2, flywheel, 3, clutch release 1
4 5
bearing, 4, hub assembly, 5, and return spring, 6.
3
The clutch disc is a dry organic type assembly, which 6
is mechanically operated. The clutch disc is installed 2
between the flywheel and the pressure plate
assembly. The clutch pressure plate is attached to
the flywheel with six bolts.
In the engaged position, the spring-loaded pressure

plate presses the clutch disc into contact with the
engine flywheel. The power flow from the engine is
transmitted by the friction between the clutch disc
linings and the surface of the flywheel and the clutch 2
pressure plate.
18-6
8
5
9
10
6
7
3
3
The clutch pedal assembly is connected by an After a gear change is made and the clutch pedal is
adjustable rod, 1, to a clevis, 2, and cross shaft released, the release bearing and hub are returned
assembly, 3, on which a fork, 4, is mounted. to the free position by a spring, 9, attached to a
hanger, 10.
Depressing the clutch pedal causes the cross shaft,
3, and fork, 4, to move the release bearing, 5, forward The main springs of the pressure plate assembly, 6,
and depress the pressure plate release levers. This then reassert pressure on the plate moving it forward
action draws the pressure plate, 6, away from the to press the clutch disc, 7, into contact with the
clutch disc, 7, releasing the disc from contact with the flywheel and establish the drive to the transmission.
flywheel.
The release bearing, 5, is pre-lubricated and never
The friction drive from the engine is then requires lubrication. The pressure plate assembly, 6,
disconnected to enable gear changes to take place. is not repairable and must be replaced as a complete
assembly if service is required.
18-7
ADJUSTMENT
FREE-PLAY 19 - 30 mm
The only single clutch adjustment that can be made (3/4 - 1-3/16″)
without using the overhaul procedure is to check the
clutch pedal free travel. This is the amount of pedal
movement from the fully released position to the
point where resistance is first encountered.
2
1. Remove the cotter pin securing the adjustment
3
rod, 2, to the cross shaft bell crank, 3. 1
2. Lengthen or shorten the rod, 2, into or out of the 4
clevis, 1, to obtain 19 - 30 mm (3/4 - 1-3/16″) of
free-play in the pedal travel.
3. Shortening the linkage will decrease free-play 4
travel. Lengthening the linkage will increase 1. Clevis
free-play travel. 2. Adjustment Rod
4. Reposition the adjustment rod to the cross shaft 3. Cross Shaft Bellcrank
bellcrank and secure with a new cotter pin. 4. Clutch Pedal Assembly
18-8
OVERHAUL
SINGLE CLUTCH 2
Removal 1
The single clutch is serviced as a complete assembly
only. Overhaul of the single clutch is limited to
removing the clutch and inspection and adjustment
of the release lever height.
1. Separate the tractor between the engine and

clutch housing. See “Separating the Tractor”,
Section 72.
1 2
2. Remove the six pressure plate retaining bolts, 2, MODEL TC33DA
and remove the clutch assembly, 1, from the MODEL TC29DA
flywheel. 5
NOTE: Remove the attaching bolts gradually and
evenly to prevent distorting the pressure plate
assembly.
Inspection
1. Inspect the pressure plate for scoring, cracks, or
overheating. Minor imperfections may be
removed by resurfacing the pressure plate face.
2. Inspect the release lever for wear or damage.
3. Inspect the release lever pivot pins and springs
for excessive wear or damage.
MODEL TC29DA
MODEL TC33DA
18-9
4. Inspect the clutch disc lining for excessive wear.
Replace the clutch disc lining if the lining is worn 1 2
to less than 0.3 mm (0.012″), 1, from the top of
the rivet head. 3
5. Inspect the clutch lining for indications of
overheating, scoring, or oil impregnation in the
lining.
6. Inspect the clutch hub spline, 2, for excessive
wear.
7. Inspect the six cushioning springs, 3, for signs of
wear or damage.
8. If any damage to the disc is apparent, replace the
clutch disc assembly. 8
NOTE: Flywheel surface may be machined down a
maximum of 1.27 mm (0.050″).
Installation
IMPORTANT: When installing a new pressure plate
assembly, the pressure plate friction surface must be
wiped clean with a suitable solvent to remove the
protective film.
1. Lightly lubricate the hub splines of the

transmission input shaft using a high tempera-
ture lubricant.
2. Using the clutch alignment arbor, position the
clutch disc and pressure plate on the flywheel.
TC29DA -- alignment arbor #FNH00091; TC33DA MODEL TC29DA
-- alignment arbor # NH01260.
9
3. Position the clutch pressure plate on the flywheel
and install the six attaching bolts. Tighten the
attaching bolts evenly and torque to 22.6 - 28.4
N⋅m (16.6 - 21 ft. lbs.).
MODEL TC33DA
10
18-10
ADJUSTMENT
RELEASE LEVER HEIGHT
TC29DA 1
The release lever height is adjustable and should be
checked whenever the clutch is removed or a new
clutch is installed.
NOTE: Uneven release lever height may cause

improper clutch operation and premature wear of the
clutch disc. Always check and adjust the clutch 2
release lever height whenever servicing the clutch or
installing a new clutch assembly.
3
NOTE: The TC33DA release levers are non-
adjustable. 11
1. Install the clutch disc and pressure plate securely

onto the flywheel, 1. 1
2. Remove the three retaining clips, 3, located over
each of the adjuster screws, 2.
12
3. Using gauge Tool No. FNH01300, 1, set the outer
legs of the tool on the surface of the flywheel and 3
adjust each of the adjusting screws, 2, until the 1
release lever, 3, just contacts the center leg of the
tool.
13
18-11
4. After completing the adjustment, tighten the
locknuts securely and reinstall the three retainer
1
clips, 1.
5. Depress each of the three lever height levers, 2,
several times and recheck the lever height for
proper adjustment.
14
18-12
DESCRIPTION OF OPERATION -- DOUBLE CLUTCH
9 X 3 GEAR TRANSMISSION
The double clutch is standard equipment on the
Model TC29DA and TC33DA tractors equipped with 7
the 9 x 3 gear transmission.
The double clutch permits the drive to the 3 5

4
transmission to be disconnected from the main
transmission to facilitate gear changes without
stopping the drive to the PTO.
The double clutch utilizes two 215 mm (8.46″)

diameter discs on TC29DA tractor. On the TC33DA
the transmission clutch disc is 225 mm (8.86″) and
PTO clutch disc is 215 mm (8.46″). A transmission
clutch disc transmits power from the engine to the
main transmission input shaft and a second clutch
disc transmits power from the engine to the PTO 2
input shaft.
The double clutch is mounted to a recessed flywheel

with six bolts.
6
The double clutch pressure plate release lever height 1
is adjustable and should be checked and adjusted, if
required, whenever the clutch is serviced or a new
clutch is installed.
15
1. Pressure Plate Assembly
2. Transmission Clutch Disc
3. PTO Clutch Disc
5. Hub
6. Return Spring
7. Flywheel
18-13
ADJUSTMENTS
FREE-PLAY 19 - 30 mm
The only double clutch adjustment that can be made (3/4 - 1-3/16″)
without using the overhaul procedure is to check the
clutch pedal free travel. This is the amount of pedal
movement from the fully released position to the
point where resistance is first encountered.
2
1. Remove the cotter pin securing the adjustment
3
rod, 2, to the cross shaft bell crank, 3. 1
2. Lengthen or shorten the rod, 2, into or out of the 4
clevis, 1, to obtain 19 - 30 mm (3/4 - 1-3/16″) of
free-play in the pedal travel.
3. Shortening the linkage will decrease free-play 16
travel. Lengthening the linkage will increase 1. Clevis
free-play travel. 2. Adjustment Rod
4. Reposition the adjustment rod to the cross shaft 3. Cross Shaft Bellcrank
bellcrank and secure with a new cotter pin. 4. Clutch Pedal Assembly
PTO CLUTCH
(9 x 3 Transmission Only)
The PTO clutch may need to be adjusted periodically
due to wear of the PTO clutch disc, if the PTO gears
grind during engagement, this could be a symptom
of the PTO pressure plate not fully disengaging from
the clutch disc.
1. Accessibility to the clutch is provided by

removing the rubber boot, 1, that covers the
opening on the left side of the clutch housing. 1
Inspect clutch and adjust as needed. 20032737
17
2. Rotate the flywheel until one of the PTO
adjustment bolts, 2, aligns with opening in the
housing. 2
NOTE: There are a total of three PTO adjustment
bolts on the clutch assembly.
3. Loosen lock nut, 3, insert a feeler gauge between

the head of the adjustment bolt and pressure
plate at area “A”.
4. Rotate the bolt until a clearance of 1.4--1.5 mm 3 “A”
(0.055 --0.060″) is obtained between head of bolt
and pressure plate. Once proper clearance is 20032738
obtained tighten lock nut.
18
NOTE: Adjust all three bolts to the same clearance.
18-14
OVERHAUL
DOUBLE CLUTCH
7 1 6
Disassembly
1. Separate the tractor between the engine and the 2
clutch housing. See “Separating the Tractor,” 3
Section 72.
2. Remove the six bolts retaining the pressure plate
to the flywheel and remove the pressure plates,
1, and discs, 2 and 3 assembly.
NOTE: Remove the attaching bolts gradually and
evenly to prevent distorting the pressure plate
4 5
assembly.
19
1. Pressure Plate Assembly
2. PTO Clutch Disc
3. Transmission Clutch Disc
5. Hub
6. Return Spring
7. Flywheel
3. Loosen the three PTO clutch release adjusting

bolts, 1, gradually and evenly until the bolts are 1
disengaged from the bottom pressure plate.
4. Remove the three release lever pins, 2, from the
cover and swing the release levers and links, 3,
out of the way.
5. Separate the remaining components of the 2
assembly.
MODEL TC29DA
3 and TC33DA
Double Clutch
20
18-15
Inspection
1. Inspect the pressure plates for scoring, cracks, or
signs of overheating. Minor imperfections may 7
be removed by resurfacing the pressure plate 5 8
surface. 15 6
4
2. Inspect the release levers, 12, for excess wear or 17
damage.
3. Inspect the release lever and link pivot pins for 3
excess wear or damage.
4. Inspect the clutch disc lining for excess wear.
Replace the clutch disc if the lining is worn to less
than 0.3 mm (0.012″) from the top of the rivet 11
heads.
13 16
5. Inspect the clutch linings for signs of overheating, 12
scoring, or oil impregnation in the lining.
6. Inspect the hub spline for excess wear. 14
7. Inspect the cushioning springs for signs of wear 2
or damage. 1
NOTE: Flywheel surface may be machined down a 9
maximum of 1.27 mm (0.050″). 10
Assembly
1. Install one diaphragm spring, 7, (dome side away
from flywheel) in the clutch outer cover, 8. 21
1. Clutch Disc Assy. (Transmission)
2. Install the PTO pressure plate, 6, in the clutch 2. Pressure Plate
outer cover. 3. Diaphragm Spring
3. Install the PTO clutch disc, 5, with long side of 4. Clutch Cover—Inner
hub away from flywheel. 5. Clutch Disc Assy. (PTO)
6. Pressure Plate
4. Install the clutch inner cover, 4. 7. Diaphragm Spring
5. Install one diaphragm spring, 3, (dome side away 8. Clutch Cover—Outer
from flywheel) in the clutch cover. 9. Dowel Pin
10. Dowel Pin
6. Install the transmission pressure plate, 2, in the
11. Pin
clutch cover.
12. Release Lever
7. Install release lever link, and pin assemblies, 11, 13. Adjusting Bolt
12, 13, and 14. 14. Link
8. Install the three PTO clutch release bolts, 15, into 15. Adjusting Bolt
the transmission pressure plate (finger tight 16. Pin
only). 17. Locknut
9. Install the transmission clutch disc, 1, between

the flywheel and the pressure plate with long side
of hub away from flywheel.
10. Position the clutch pressure plate assembly on
the flywheel and install the six mounting bolts.
18-16
11. Use alignment arbor, Tool No. FNH00077, align
the clutch disc with the flywheel.
12. Tighten the six mounting bolts evenly to 34 N⋅m
(25 ft. lbs.).
MODEL TC29DA
and TC33DA
Alignment Arbor --
FNH00077
22
DOUBLE CLUTCH ADJUSTMENTS
1
NOTE: The following adjustments are made with the
clutch assembly installed on the flywheel. 4
1. Install alignment arbor, Tool No. FNH00077, 1, in 2

the clutch assembly until the arbor bottoms out in 5
the pilot bearing.
2. Using a feeler gauge, 2, check the PTO clutch
release adjusting bolt, 3, to pressure plate gap.
The gap should be:
3
TC29DA 1.4--1.5 mm
(0.055--0.060″)
23
TC33DA 0.9--1.0 mm
(0.035--0.040″)
Readjust the bolt so the gap is within this

dimension.
3. Tighten the adjusting bolt locknuts and recheck

the gap.
4. Slide swing lever gauge over end of arbor until
gauge Tool No. FNH01267, 4, contacts shoulder
on arbor. Swing gauge over each of the height
adjusting bolts, 5. Adjust each bolt, until the bolt
head just touches the swing gauge.
5. Tighten the adjusting bolt locknuts and recheck
the settings.
NOTE: When installing a new pressure plate
assembly, the pressure plate friction surface must be
wiped clean using a suitable solvent to remove the
protective film.
18-17
SERVICING CLUTCH-RELATED COMPONENTS
CLUTCH PILOT BEARING

(9 x 3 TRANSMISSION ONLY)
A pre-lubricated ball bearing, 2, is installed at the rear
3
of the engine to support the front end of the
2
transmission input shaft. The pilot bearing is located
in the flywheel, 1.
Whenever the clutch has been removed, inspect the

pilot bearing by turning the inner race by hand and 1
observe for abnormal noise, uneven rotation, or
excessive free play.
Removal
If any of the above conditions are noted, remove the 24
pilot bearing using a suitable puller. 1. Flywheel
2. Pilot Bearing
Installation 3. Crankshaft
Apply a few drops of Loctite® #648 Retaining
compound to the outer race and install the bearing
using a suitable driver. Be sure the driver contacts
only the outer race so as not to damage the bearing
during installation.
NOTE: Pilot bearing used on tractors with 9 x 3

transmission.
18-18
FLYWHEEL DIMENSIONS
22 mm
90 mm
33 mm
72 mm 72 mm
279 mm
50032739
25
Single Clutch TC29DA
45 mm
90 mm
2 mm 225 mm
261 mm
50032740
26
Double Clutch 9 x 3 TC29DA
18-19
22 mm
33 mm
73 mm 73 mm
281 mm
50032762
27
Single Clutch TC33DA
45 mm
90 mm
2 mm 51 mm 51 mm
237 mm
276 mm
50032741
28
Double Clutch 9 x 3 TC33DA
18-20
CLUTCH RELEASE BEARING

10 11 12
The clutch release bearing, 1, is a pre-lubricated ball
bearing and is mounted on the sliding hub, 2, which 9
is supported on the front input shaft retainer, 11.
8
A fork, 4, mounted on the cross shaft, 6, is engaged
with the bearing, 1, and hub assembly, 2. 5
4
On tractors equipped with single clutch, initial
movement of the clutch pedal causes the release
bearing to come in contact with the release levers. 8
Further movement of the clutch pedal disengages
the clutch and drive to the transmission input shaft 6
and stops the transmission and PTO drive.
2 2 13
On tractors equipped with the double clutch, 1
depressing the clutch pedal approximately half-way 3 15
disengages the transmission drive, but allows the
drive to continue to the PTO. Further movement of
the clutch pedal causes the clutch to disengage the
drive to the PTO. 7
1
Removal 7 14
1. Separate the tractor between the engine and the
clutch housing. See “Separating the Tractor,”
Section 72.
29
2. Remove the cotter pin, 13, and clevis pin, 14, and
1. Bearing
remove the adjustment rod, 15, from the clutch
2. Hub (short -- HST)
release cross shaft, 6.
3. Pin
3. Remove the release bearing, 1, and hub return 4. Fork
spring, 7, and slide the bearing and hub, 2, off the 5. Safety Wire
support, 11. 6. Cross Shaft
4. Using a suitable puller, remove the bearing, 1, 7. Return Spring
from the hub, 2. 8. Bushing
9. Snap Ring
10. Gasket
Inspection 11. Retainer
Rotate the bearing by hand and observe the 12. Bolt
following conditions: 13. Cotter Pin
14. Clevis Pin
1. Abnormal noise. 15. Adjustment Rod
2. Uneven rotation when turned slowly by hand.
3. Excessive free play.
4. Scoring on the clutch finger mating surface.
5. Indications of lubricant leakage at the oil seal.
18-21
Assembly
1. Install the bearing, 1, onto the hub, 2. 3
2. Install the bearing and hub onto the support, 3,
and install the return spring, 4.
3. Install the adjustment rod, 5, on the clutch
release cross shaft, 6, and attach with the cotter
pin, 7, and washer, 8.
6
2 2 7
1
5
1 4
8
4
30
1. Bearing
2. Hub
3. Support
4. Return Spring
5. Adjustment Rod
6. Cross Shaft
7. Cotter Pin
8. Washer
CLUTCH LINKAGE COMPONENTS

CLUTCH CROSS SHAFT BUSHINGS
Removal
5
1. Separate the tractor between the engine and the 9
clutch housing. See “Separating the Tractor,”
Section 72. 6
8
2. Remove the cotter pin, 1, and washer, 2, and 9
remove the adjustment rod, 3, from the clutch
cross shaft, 4. 4
3. Remove the snap ring, 5, from the right hand end
7 1
of the cross shaft, 4.
4. Remove the safety wire, 6, and roll pin, 7, from 3
the fork, 8, and cross shaft, 4. Withdraw the cross
shaft from the clutch housing.
2
5. Use a suitable driver, remove the bushings, 9,
from the clutch housing.
31
18-22
Assembly
1. Using a suitable driver, install the bushings, 1,
into the clutch housing. 6
3 1
2. Lubricate and install the cross shaft, 2, into the
left side bushing. Place fork, 3, on cross shaft, 5
secure fork to shaft with roll pin, 4, and safety
wire, 5. 1
3. Install snap ring, 6, to right end of cross shaft, 2. 2
4. Install adjustment rod, 7, to cross shaft, 2, using
washer, 8, and cotter pin, 9.
4 9
5. Clutch housing now can be reassembled to 7
engine, see separating section.
32
18-23
1 2 3 9
4
10
7 8
1
2
5
33
CLUTCH PEDAL BUSHINGS 5. Withdraw the brake cross shaft from the support
and remove the pedal from the shaft.
Removal
6. Using a suitable driver, remove the bushings, 10,
1. Disconnect the brake actuating rods, 1, and from the clutch pedal assembly.
brake return springs, 2, from the cross shaft, 3,
on both sides of the tractor. 7. Reinstall new bushings using a suitable bushing
driver.
2. Remove the two roll pins, 4, from the brake cross
shaft and brake pedal assembly, 5.
Assembly
3. Remove the clutch pedal return spring, 6. Reassembly of the clutch pedal bushings generally
4. Remove the cotter pin, 7, and clutch adjustment follows the removal procedure in reverse.
rod, 8, from the clutch pedal, 9.
18-24

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SECTION 00 - GENERAL INFORMATION

Chapter 1 - General Information

Section Description Page

THE TRACTOR 3. Keep the tractor and equipment, particularly

8. If the power steering or engine ceases operating,

OPERATING THE PTO 6. Wipe up spilled fuel immediately.

DIESEL FUEL UNDER NO CIRCUMSTANCES should you:

WHEN YOU SEE THIS SYMBOL

WARNING: Pull Only From Drawbar

WARNING: To Jump Start

WARNING: Before Starting

WARNING: Rotating Fan

Front-Wheel Front-Wheel PTO Control PTO Control

Differential Lock Starter Switch Flow Control Valve Engine Oil

Power Steering Fluid

Air Cleaner Maintenance

Throttle Red Reflective Tape

PLEASE READ CAREFULLY: New Holland North America, Inc. is continually

ECOLOGY AND THE ENVIRONMENT

Thermostart Radio P.T.O. Position

Heater fan Hitch disabled

Model TC29DA— Model TC33DA—

Cooling System . . . . . . . . . . . . . . . . . . . 4.0 liters/ 4.0 liters/

Rear Axle & Transmission

HST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.3 liters/ 33.3 liters/

Power Steering . . . . . . . . . . . . . . . . . . . . 1.6 liters/ 1.6 liters/

Front Axle Final Reduction . . . . . . . . . . 0.8 liters/ 0.8 liters/

Differential Gear Case . . . . . . . . . . . . . . . 1.4 liters/ 1.4 liters/

Model TC29DA— Model TC33DA—

Model TC29DA— Model TC33DA—

Turning Radius w/o Brakes:

HYDRAULIC LIFT SYSTEM

Model TC29DA— Model TC33DA—

(2,800 RPM Engine (2,800 RPM Engine

Mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-13.03 KPH (0-8.09 MPH) 0-13.03 KPH (0-8.09 MPH)

High . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-25.08 KPH (0-15.59 MPH) 0-25.08 KPH (0-15.59 MPH)

2nd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.73 KPH (1.08 MPH) 1.73 KPH (1.08 MPH)

3rd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.48 KPH (1.54 MPH) 2.48 KPH (1.54 MPH)

4th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.67 KPH (2.28 MPH) 3.67 KPH (2.28 MPH)

5th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.46 KPH (3.39 MPH) 5.46 KPH (3.39 MPH)

6th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.83 KPH (4.87 MPH) 7.83 KPH (4.87 MPH)

7th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.47 KPH (5.88 MPH) 9.47 KPH (5.88 MPH)

8th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.97 KPH (8.68 MPH) 13.97 KPH (8.68 MPH)

9th . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.58 KPH (12.79 MPH) 20.58 KPH (12.79 MPH)

Reverse 1 . . . . . . . . . . . . . . . . . . . . . . . 1.79 KPH (1.11 MPH) 1.79 KPH (1.11 MPH)

Reverse 2 . . . . . . . . . . . . . . . . . . . . . . . 5.65 KPH (3.51 MPH) 5.65 KPH (3.51 MPH)

Reverse 3 . . . . . . . . . . . . . . . . . . . . . . . 14.47 KPH (8.99 MPH) 14.47 KPH (8.99 MPH)

Model TC29DA— Model TC33DA—

Optional (2) weights Optional (2) weights

Model TC29DA— Model TC33DA—

WHEEL BOLT TORQUES

ROPS ATTACHING BOLT TORQUES

Turf Special (Galaxy® Tires) . . . . . . . . 2671 mm (105.2″) 2671 mm (105.2″)

Turf Special (Galaxy Tires) . . . . . . . . . 2900 mm (114.2″) 2900 mm (114.2″)

(3)—Top of Steering Wheel:

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