444 User Manual

EN
444
Excavator Operation and
Maintenance
Manual
S/N 5322 11001
& Above
4900041-EN (09-06) © Bobcat Europe 2005

Printed in Europe
OPERATOR SAFETY WARNINGS
WARNING
The operator must have instructions before run-
ning the machine. Untrained operators can cause
injury or death.
Never operate without instructions.

Read machine signs and operation & Mainte-
nance Manual.
This symbol with a warning statement, means: “Warning, be alert! your safety is involved!”
Carefully read the message that follows.
Wrong Correct Wrong Wrong
Do not grasp control han- Never operate without Avoid steep areas or banks Use caution to avoid tipping -
dles when entering canopy or approved canopy or cab. that could break away. do not swing heavy load over
cab. side of track.
Never modify equipment.
Be sure controls are in neu- Operate on flat, level ground.
tral before starting. Never use attachments not
approved by Bobcat Com-
Sound horn and check pany.
behind machine before start-
ing.
Wrong Correct Correct Correct
15˚ max 15˚ max 25˚ max
Keep bystanders out of maxi- Never exceed a 15° slope to Never travel up a slope that Never exceed 25° when going
mum reach area. the side. exceeds 15°. down or backing up a slope.
Do not travel or turn with
bucket extended.
Never carry riders.
Correct Correct SAFETY EQUIPMENT

1. Seat Belt
2. Swing Lock
3. Machine Safety Signs
4. Safety Tread
5. Grab Handles
To leave the excavator, lower Fasten seat belt securely.
the attachment.
Operate controls only from
Stop the engine. operator’s seat.
CONTENTS
CONTENTS
CONTENTS .......................................................................................................................................................................i
FOREWORD.................................................................................................................................................................... iii
SAFETY INSTRUCTIONS ................................................................................................................................................1
OPERATING INSTRUCTIONS .........................................................................................................................................5
PREVENTIVE MAINTENANCE ......................................................................................................................................43
SPECIFICATIONS ..........................................................................................................................................................79
REFERENCE INFORMATION
Write the correct information for YOUR excavator in the spaces below.
Always use these numbers when referring to your Bobcat excavator.
Bobcat excavator serial number
Engine serial number
Notes
Your Bobcat excavator dealer
Address
Phone
Bobcat Europe
J. Huysmanslaan 59
B-1651 LOT
Belgium
4900041-EN (09-06) i 444 Excavator

Operation and Maintenance Manual
CONTENTS
444 Excavator ii 4900041-EN (09-06)

FOREWORD
FOREWORD
IMPORTANT
This Operation & Maintenance Manual was written to give the owner/operator instructions on the safe oper-
ation and maintenance of the Bobcat excavator.
READ AND UNDERSTAND THIS OPERATION & MAINTENANCE MANUAL BEFORE OPERATING YOUR Bob-
cat excavator. If you have any questions, see your Bobcat dealer.
Read this manual completely and know the Bobcat excavator before operating and servicing it. All refer-
ences to left or right on the excavator are given in relation to the operator’s left or right hand while in the
operator’s seat.
Bobcat Company is ISO 9001:2000 certified ................................................................................................................... iv
Items needed for regular maintenance ............................................................................................................................ iv
Serial number locations.....................................................................................................................................................v

Bobcat excavator serial number .............................................................................................................................v
Engine Serial Number.............................................................................................................................................v
Delivery report...................................................................................................................................................................v
Bobcat excavator identification ........................................................................................................................................ vi

Excavator 444 ........................................................................................................................................................ vi
Features and accessories ............................................................................................................................................... vii

Standard items...................................................................................................................................................... vii
Options and accessories....................................................................................................................................... vii
4900041-EN (09-06) iii 444 Excavator

FOREWORD
Bobcat Company is ISO 9001:2000 certified

ISO 9001:2000 is a set of international standards that control the processes and procedures which we use to design,
develop, manufacture, distribute, and service Bobcat products.
British Standards Institute (BSI) is the Certified Registrar Bobcat chose to assess the Company’s compliance with the
ISO 9001:2000 set of standards. The BSI registration certifies that the two Bobcat manufacturing plants and the Bobcat
corporate offices (Gwinner, Bismarck & West Fargo) in North Dakota are in compliance with ISO 9001:2000. Only certi-
fied assessors, such as BSI, can grant registrations.
ISO 9001:2000 means that as a company we say what we do and do what we say. In other words, we have established
procedures and policies, and we provide evidence that the procedures and policies are followed.
Items needed for regular maintenance
Description Code
Engine oil filter 5 411 656 298
Fuel filter 5 411 656 493
Fuel pre-filter
Primary air filter 5 501 660 922
Secondary air filter 5 501 660 924
Hydraulic oil filter (return filter) 5 380 658 088
Hydraulic ventilation filter 5 501 655 650
Cab ventilation filter 5 501 661 034
Fan / fuel pump belt 5 411 656 409
Alternator belt 5 411 657 636
Air conditioning belt 5 411 656 922
Cab ventilation dust filter 5 501 661 034
Engine oil SAE 15W40 CE/SG (19 L)
Hydraulic oil 4 314 005 775
Grease for lubricating points Multi purpose, lithium-soap based grease
(K2K-30 / DIN 51825)
444 Excavator iv 4900041-EN (09-06)

FOREWORD
Serial number locations
Bobcat excavator serial number Engine Serial Number
Always use the serial number of the excavator when The engine serial number is located on the engine in the
requesting service information or when ordering parts. location shown in [Figure 2].
Early or later models (identification made by serial
Figure 2
number) may use different parts, or it may be necessary to
use a different procedure in doing a specific service
operation.
The excavator serial number plate [Figure 1] is located on
the frame of the machine in the location shown.
Figure 1
S0805
Delivery report
S0803
The Delivery Report items must be explained to the owner/

Excavator Serial Number The Excavator serial number operator by the dealer. The dealer is to fill in the form and
plate (1) is located on the frame of the machine in the loca- the owner/operator signs the form to indicate his under-
tion shown [Figure 1]. standing [Figure 3].
Figure 3
XXXX XXXXX
Module 2. - Production
Sequence (Series)
Module 1. - Model/Engine
Combination
1.The four digit Model/Engine Combination Module

number identifies the model number and engine combina-
tion.
2.The five digit Production Sequence Number identifies

the order which the loader is produced.
B-16315
4900041-EN (09-06) v 444 Excavator

FOREWORD
Bobcat excavator identification
Excavator 444
Figure 4
Ref Description
1 Arm cylinder
2 Boom
3 Boom cilinders
4 Operator handbooks
5 Operator seat with seat belt
6 Grab handle
7 Return to tank coupler
8 Auxiliary couplers (on both sides)
9 Arm
10 Blade cilinders
11 Bucket
12 Right side cover
13 Rear cover
14 Upperstructure
15 Blade
16 Undercarriage / Track frame
17 Tracks
& 18 Bucket cilinder
"
!
% #
$
&
!
' "
# % $
S1110
444 Excavator vi 4900041-EN (09-06)

FOREWORD
Features and accessories
Standard items Options and accessories
Model 444 Bobcat excavators are equipped with the fol- Below is a list of some equipment available from your Bob-
lowing standard items: cat excavator dealer as dealer and/or factory installed
accessories and factory installed options.
• 2500 mm dozer bladel
• 500 mm rubber or steel tracks See your Bobcat dealer for other available options,
• Adjustable suspension seat accessories and attachments.
• Auxiliary hydraulics
Options
• Boom anti-drop valve
• Control console locks • 500 or 800 mm steel tracks
• Cupholder • Air conditioning
• 2000 mm dipperstick • Air-cushioned operator's seat
• Enclosed cab* with heater • Articulated boom
• Electrical disconnect • Dipperstick
• Horn • Dipperstick hose rupture safety valve
• Hydraulic joystick controls • Dozer blade float position
• Seat belt • Keyless ignition
• Two-speed travel • Independent diesel heating
• Working lights • Electric refuelling pump
• Warranty: 12 months, 2000 hours • Bucket rod with crane hook
• Secondary auxiliary hydraulic circuit
* Tip Over Protective Structure (TOPS) - Meets requirements of
ISO/DIS 12117 • Travel motion alarm
• MS08 quick-change attachment mounting system
• Special paint
• Yellow rotating beacon
Attachments
These and other attachments are approved for use on this

model Bobcat excavator.
Do not use unapproved attachments.
Attachments not manufactured by Bobcat may not be
approved.
The versatile Bobcat excavator quickly turns into a multi-
job machine with a variety of attachments.
See your Bobcat dealer for more details on these and
other attachments and field accessories.
• Ejector bucket
• Grading bucket
• Ripping tooth
• Rotating clamshell bucket
• Tilt bucket
• Trenching bucket
4900041-EN (09-06) vii 444 Excavator

FOREWORD
444 Excavator viii 4900041-EN (09-06)

SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
Table of contents
Safety instructions.............................................................................................................................................................3
Safe operation is the operator’s responsibility ........................................................................................................3
Before operating the Bobcat excavator...................................................................................................................3
Safe operation needs a qualified operator ........................................................................................................................4

A qualified operator must do the following ..............................................................................................................4
Fire prevention ..................................................................................................................................................................4
4900041-EN (09-06) 1 444 Excavator

SAFETY INSTRUCTIONS
444 Excavator 2 4900041-EN (09-06)

SAFETY INSTRUCTIONS
Safety instructions
Safe operation is the operator’s responsibility Before operating the Bobcat excavator
Carefully follow the operating and maintenance instruc-

tions in this manual.
WARNING
The Bobcat excavator is highly manoeuvrable and com-
pact. It is rugged and useful under a wide variety of This symbol with a warning statement means:
conditions. This presents an operator with hazards associ- “Warning, be alert! Your safety is involved!” Care-
ated with off highway, rough terrain applications, common fully read the message that follows.
with Bobcat excavator usage.
The Bobcat excavator has an internal combustion engine
with resultant heat and exhaust. All exhaust gases can kill
or cause illness, so use the excavator with adequate ven- WARNING
tilation. The excavator has a spark arrester exhaust
Operator must have instruction before operating
system or silencer which is required for operation in certain
the machine. Untrained operators may cause injury
areas.
or death.
The dealer explains the capabilities and restrictions of the
Bobcat excavator and attachments for each application.
The dealer demonstrates the safe operation according to
Bobcat instructional materials, which are also available to
operators. The dealer can also identify unsafe modifica-
IMPORTANT
tions or use of unapproved attachments. The attachments This notice identifies procedures which must be
and buckets are designed for a rated lift capacity and followed to avoid damage to the machine.
secure fastening to the Bobcat excavator. The user must
check with the dealer or Bobcat literature to determine safe
loads of materials of specified densities for the excavator-
attachment combination.
WARNING
The following publications and training materials provide
information on the safe use and maintenance of the Bob- Warnings on the machine and in the manuals are
cat excavator and attachments: for your safety. Failure to obey warnings may
cause injury or death.
• The Delivery report is used to assure that complete in-
structions have been given to the new owner and that
the Bobcat excavator and attachment are in safe oper-
ating condition. The Bobcat excavator and attachment must be in good
operating condition before use.
• The Operation & Maintenance Manual delivered with
the Bobcat excavator or attachment gives operating in- Check all the items on the Bobcat SERVICING Schedule
formation as well as routine maintenance and service
procedures. It is a part of the machine and is stored in a Sticker under the 8-10 hour column or as shown in the
container provided inside the cab of the excavator. Re- Operation & Maintenance Manual.
placement Operation & Maintenance Manuals may be
ordered from your Bobcat dealer.
• Machine signs (decals) instruct on the safe operation
and care of your Bobcat excavator or attachment. The
signs and their locations are shown in the Operation &
Maintenance Manual. Replacement signs are available
from your Bobcat dealer.
• An Operator’s handbook is fastened to the cab of the ex-
cavator. Its brief instructions are convenient to the oper-
ator. The handbook is available from your dealer in an
English edition or one of many other languages. See
your Bobcat dealer for more information on translated
versions.
The dealer and owner/operator review the recommended
uses of the product when delivered. If the owner/operator
will be using the machine for a different application(s) he
should ask the dealer for recommendations on the new
use.
Sl22-0603
4900041-EN (09-06) 3 444 Excavator

SAFETY INSTRUCTIONS
Safe operation needs a qualified operator Fire prevention
For an operator to be qualified, he/she must not use drugs The machines and some attachments have components
or alcoholic drinks which impair his/her alertness or co- which are at high temperatures under normal operating
ordination while working. An operator who is taking pre- conditions. The primary source of high temperatures is the
scription drugs should seek medical advice to determine if engine and exhaust system. The electrical system, if dam-
he/she can safely operate a machine. aged or incorrectly maintained, can be a source of arcs or
sparks.
A qualified operator must do the following Flammable debris (leaves, straw, etc.) must be removed
regularly. If flammable debris is allowed to accumulate, it
Understand the written instructions, rules and can be a fire hazard. Clean often to avoid this accumula-
regulations tion. Flammable debris in the engine compartment is a
potential fire hazard.
• The written instructions from Bobcat company include
the Delivery report, Operation & Maintenance Manual, The spark arrester exhaust system (if fitted) is designed to
Operator’s handbook and machine signs (decals). control the emission of hot particles from the engine and
• Check the rules and regulations at your location. The exhaust system, but the silencer and the exhaust gases
rules may include employer’s work safety requirements. are still hot.
Regulations may apply to local driving requirements or
use of a Slow Moving Vehicle (SMV) emblem. Regula- • Do not use the machine where exhaust, arcs, sparks or
tions may identify a hazard such as a utility line. hot components may contact flammable material, explo-
sive dust or gases.
Have training with actual operation • The operator cab, engine compartment and engine
cooling system must be inspected every day and
• Operator training must consist of a demonstration and cleaned if necessary to prevent fire hazards and over-
verbal instruction. This training is given by your Bobcat heating.
dealer before the product is delivered. • Check all electrical wiring and connections for damage.
• The new operator must start in an area without bystand- Keep the battery terminals clean and tight. Repair or re-
ers and use all the controls until he can operate the ma- place any damaged part.
chine and attachment safely under all conditions of the • Check fuel and hydraulic tubes, hoses and fittings for
work area. Always fasten seat belt before operating. damage and leakage. Never use open flame or bare
skin to check for leaks. Tighten or replace any parts that
Know the work conditions show leakage. Always clean fluid spills. Do not use pet-
rol or diesel fuel for cleaning parts. Use commercial non-
• Know the weight of the materials being handled. Avoid flammable solvents.
exceeding the Rated Lifting Capacity of the machine. • Do not use ether or starting fluids on any engine which
Material which is very dense will be heavier than the has glow plugs. These starting aids may cause an ex-
same volume of less dense material. Reduce the size of plosion and injure you or bystanders.
load if handling dense material.
• Always clean the machine, disconnect the battery, and
• The operator must know any prohibited uses or work ar- disconnect the wiring from the electronic controllers be-
eas: for example, he needs to know about excessive fore welding. Cover rubber hoses, battery and all other
slopes. flammable parts. Keep a fire extinguisher near the ma-
• Know the location of any underground lines. chine when welding. Have good ventilation when grind-
ing or welding painted parts. Wear dust mask when
• Wear tight fitting clothing. Always wear safety glasses grinding painted parts. Toxic dust or gas may be pro-
when doing maintenance or service. Safety glasses, duced.
hearing protection or special applications kit are re-
quired for some work. See your dealer about Bobcat • Stop the engine and let it cool before refuelling. No
Safety equipment. smoking!
• Use the procedure in the Operation & Maintenance
Manual for connecting the battery and for starting with
jump leads.
• Know where fire extinguishers and first aid kits are locat-
ed and how to use them. Fire extinguishers are availa-
ble from your Bobcat dealer.
444 Excavator 4 4900041-EN (09-06)

OPERATING INSTRUCTIONS
Table of contents
Pictograms ........................................................................................................................................................................7
Controls and instrumentation ............................................................................................................................................8

Left control lever .....................................................................................................................................................8
Left console.............................................................................................................................................................9
Right control lever .................................................................................................................................................10
Right console ........................................................................................................................................................11
Steering levers / foot pedals .................................................................................................................................12
Blade control lever ................................................................................................................................................14
Boom swing pedal.................................................................................................................................................14
Operator cab ...................................................................................................................................................................15

Description ............................................................................................................................................................15
Entering And Exiting The Excavator .....................................................................................................................15
Raising and lowering the left console ...................................................................................................................15
Emergency exits ...................................................................................................................................................16
Front window ventilation .......................................................................................................................................19
Top window...........................................................................................................................................................19
Wiper/washer fluid reservoir .................................................................................................................................20
Heating, air conditioning (option) and ventilation ..................................................................................................20
Changing work attachments............................................................................................................................................21

General .................................................................................................................................................................21
Procedure for changing work attachments ...........................................................................................................21
Clamshell grab bucket ..........................................................................................................................................22
Attaching the rock breaker ....................................................................................................................................24
Auxiliary hydraulic flow adjustment .......................................................................................................................25
Relieving hydraulic pressure.................................................................................................................................26
Daily inspection ...............................................................................................................................................................26
Pre-starting procedure ....................................................................................................................................................28
Starting the engine ..........................................................................................................................................................31

Key switch.............................................................................................................................................................31
Cold temperature starting procedure ....................................................................................................................32
4900041-EN (09-06) 5 444 Excavator

Operating procedure ...................................................................................................................................................... 33

Rated Operating Capacity.................................................................................................................................... 33
Operating on public roads .................................................................................................................................... 33
Lifting a load......................................................................................................................................................... 34
Excavating............................................................................................................................................................ 35
Boom offset .......................................................................................................................................................... 36
Backfilling ............................................................................................................................................................. 37
Driving the excavator ........................................................................................................................................... 37
Operating on slopes ............................................................................................................................................. 38
Operating in water................................................................................................................................................ 40
Parking the excavator .......................................................................................................................................... 40
Recovery and transport of the machine ......................................................................................................................... 41

Recovery of the machine ..................................................................................................................................... 41
Lifting the machine ............................................................................................................................................... 41
Transport of the machine ..................................................................................................................................... 42
444 Excavator 6 4900041-EN (09-06)

Pictograms
The following table explains the meaning of the pictograms which may be attached to your machine:
Battery charge indicator Travel speed, fast
Pre-heating Travel speed, slow
Engine oil pressure Dozer blade float position
Coolant temperature Hydraulic rock breaker
Changeover “ISO – SAE” con-

Air filter trol
Fuel Lashing points

Fuel level
Suspension points for loading by
Fan crane
Heater / Ventilation
First-aid kit
Windshield wash/ wipe system
Fire extinguisher
Horn
R Travel motion alarm Danger of crushing
Hydraulic oil
Hydraulic oil level Danger of injury
Hydraulic oil filter clogging indi-

Observe notes in Operating
cator
Instructions
Operational status
Grease gun
Operating hours Lubricating point
Working floodlights
Rotating beacon
Overload warning device
4900041-EN (09-06) 7 444 Excavator

Controls and instrumentation
Left control lever

Figure 5 Figure 7
2 4
S0808 S0853
Reference Description Function The work equipment (boom, arm, bucket, and upperstruc-
1 Left control lever See below for left lever function. ture slew) is operated by using the left and right control
(Joystick) levers (joysticks).
2 Upperstructure slew When slewing the upperstructure
brake button while working on a slope, push and The left lever is used to operate the arm and to slew the
hold the slew brake button until the upperstructure
slew circuit is engaged. Release the
button when the upperstructure starts Functions [Figure 7]:
to slew. This will prevent the
upperstructure from drifting when the 1. Arm out
slew circuit is first engaged.
2. Arm out and slew right
3 Push and hold the switch to provide
hydraulic flow to the quick couplers. 3. Slew right
Release the switch to stop hydraulic
The switches (3 & 4) flow. 4. Arm in and slew right
are used for hydraulic Note: This switch is inoperable when 5. Arm in
powered attachments the hydraulic breaker operation
(such as a clamshell switch is activated. 6. Arm in and slew left
4 bucket). Push and hold the switch to reverse 7. Slew left
the direction of flow to the quick
couplers. Release the switch to stop 8. Arm out and slew left
hydraulic flow.
5 Arm Rest (Adjustable)
Figure 6
S0809
Reference Description Function

1 Holding Brake Push Holding brake for uppercarriage
Button slewing motion
444 Excavator 8 4900041-EN (09-06)

Left console
Figure 8
1
2
Close
4
Open
S0810

1 Changeover ISO / SAE- -
control Switch
(Optional)
2 Battery Disconnect Turn the key 1/4 turn
Switch counterclockwise and remove the
key to disconnect the battery from
the electrical system. Install the key
and turn 1/4 turn clockwise to
connect the battery to the electrical
system.
4 Fresh Air/Recirculation Open the aspirating holes for fresh
Lever air. Close the aspiration holes to
recirculate the cab air.
4900041-EN (09-06) 9 444 Excavator

Right control lever
Figure 9 Figure 11
3
4
2
S0811 S0855
The right lever is used to operate the boom and bucket.
Reference Description Function Functions [Figure 11]:

1 Right Control Lever See below for right lever function. 1. Boom lower
(Joystick)
2 Horn Press the button on the control lever
2. Boom lower and bucket dump
to sound the horn. 3. Bucket dump
3&4 Momentary Hydraulic Additional control circuit - Grab/rock
Switch breaker
4. Boom raise and bucket dump
5. Boom raise
Figure 10
6. Boom raise and bucket curl
7. Bucket curl
2 8. Boom lower and bucket curl
1
WARNING
AVOID INJURY OR DEATH
Before leaving the machine:
• Lower the work equipment to the ground.
• Lower the blade to the ground.
• Stop the engine & remove the key.
S0813

1 Switch Future Use
2 Arm Rest (Adjustable) -
444 Excavator 10 4900041-EN (09-06)

Right console
Figure 12 Figure 13
5 1 2 3 4
6 1
7
8 2
9
3
10
4
11
5 6 7 8 9 10
S0812 S0814
Reference Description Function Reference Description Function

1 Boom Load Indicator Shows load on boom cylinder circuit 1 Heater/AC Fan Switch Three speed fan motor control.
when lifting. 2 Wiper/Washer Switch Starts and stops the wiper motor.
2 Engine Temperature Shows the engine coolant Press and hold the bottom of the
Gauge temperature. switch to activate the washer.
3 Fuel Gauge Shows the amount of fuel in the tank. 3 Rotating Beacon (If -
4 Hourmeter Displays the total operating hours on equipped)
the Excavator. 4 Light Switch Press the switch to turn on the cab/
5 Battery Charge Light will illuminate when the voltage boom work light.
Indicator is out of range. 5 Two Speed Travel Engages and disengages high range
6 Glow Plugs/Manifold Light will illuminate when the glow Control Switch travel speed. (The switch will be
Heater plugs/manifold heater is energized. illuminated in high range.)
7 Engine Oil Pressure Light will illuminate when the engine 6 Auxiliary Hydraulic Press this switch when using the
Indicator oil pressure is low. Mode Switch hydraulic breaker. (The switch will be
illuminated.)
8 Air Filter Indicator Light will illuminate when the air flow
becomes restricted. 7 Float Switch Press this switch to put the blade in
the float position. (The switch will be
9 Hydraulic Oil Filter Light will illuminate when the
illuminated.)
Clogging Indicator hydraulic oil filter is becoming
clogged. 8 Overload Warning Press this switch to engage the
Switch overload warning alarm. (The switch
10 Hydraulic Oil Level Light will illuminate when the
will be illuminated.) The warning
Indicator hydraulic oil level in the tank is low.
alarm will sound when the boom/arm/
11 Start/Run Switch Starts and stops the Excavator bucket functions are being
engine. overloaded.
9 Motion Alarm -
(If equipped)
10 Air Conditioning Turns on and off the air conditioning
Switch (If equipped) (optional).
4900041-EN (09-06) 11 444 Excavator

Figure 14 Steering levers / foot pedals
Forward and reverse travel
Note: The following procedures describe forward, reverse,

left & right as seated in the operator's seat.
1 Figure 16
S0815

1 Engine Speed Control Controls the RPM of the engine.
Lever (throttle) Push the lever forward for low speed.
Pull the lever back to increase engine
2 S0845
speed.
2 Temperature Control Push the lever forward to increase
Lever the cab temperatures; backward to
decrease temperature.
1 Steering levers Put the blade so that it is at the front
of the machine (as you sit in the
Figure 15 operator's seat). Slowly move both
steering levers* forward for forward
travel; backward for reverse travel.*
2 Foot pedals Steering can also be controlled with
foot pedals
1
WARNING
• Check the blade location before travelling.
When the blade is to the rear, operate the
steering levers/foot pedals in the opposite
direction to when the blade is in the front.
S0818 • Move the steering levers/foot pedals slow-
ly. Abrupt lever motion will cause the ma-
chine to jerk.

1 Auxiliary Power Outlet -
444 Excavator 12 4900041-EN (09-06)

Turning
Right Turn Left turn

Figure 17 Figure 20
S0846 S0849
Push the left steering lever forward to turn right Push the right steering lever forward to turn left while trav-
[Figure 17] while travelling forward. elling forward [Figure 20].
Figure 18 Figure 21
S0847 S0850
Pull the left steering lever backward to turn right Pull the right steering lever backward to turn left while trav-
[Figure 18] while travelling backward. elling backward [Figure 21].
Counter-Rotation Right Turn Counter-Rotation Left Turn

Figure 19 Figure 22
S0848 S0851
Push the left steering lever forward and pull the right steer- Push the right steering lever forward and pull the left steer-
ing lever backward [Figure 19]. ing lever backward [Figure 22].
4900041-EN (09-06) 13 444 Excavator

Blade control lever Boom swing pedal
Figure 23

2 Pedal Push the left side of the pedal to
1
[Figure 23] swing the boom to the left.
Push the right side of the pedal to
swing the boom to the right.
Figure 25
S0877

1 Lever Push the lever forward to lower the
blade.
Pull the lever backward to raise the
S0879
blade.
Note: Keep the blade lowered when digging to help stabi- Note: The purpose of the boom swing pedal is to offset the
lize the Excavator. boom with respect to the upperstructure for digging
close to a structure [Figure 25].
Figure 24
S0867

1 Switch Push the switch to put the blade in
the float position (the switch will be
illuminated).
444 Excavator 14 4900041-EN (09-06)

Operator cab
Description Raising and lowering the left console
Figure 27
WARNING
Never modify operator cab by welding, grind-
ing, drilling holes or adding attachments
unless instructed to do so by Bobcat.
Changes to the cab may cause loss of opera-
tor protection from rollover and falling
objects, and result in injury or death.
Entering And Exiting The Excavator 1
Figure 26
S0820
Raise the console before exiting the cab. Pull up on the

handle [Figure 27]. The lift spring will assist in raising the
console.
Lower the console before operating the Excavator. Push
down on the handle until the console is in the down
position.
Note: When the console is raised, the hydraulic and trac-

tion systems are locked and will not operate.
S01102
Use the grab handles and track to enter and exit the Exca-
vator [Figure 26].
4900041-EN (09-06) 15 444 Excavator

Emergency exits
The left door, right side window and front window Cab door
provide emergency exits.
The start key can be used to lock the cab door.
Right side window
Push the door all the way open until the latch engages to
Figure 28 hold the door in the open position.
Figure 30
S0822
S0824

1 Window latch Press it together and slide the
window to the rear of the Excavator.
1 Latch Pull down to release the door.
Figure 29
S01103
Exit through the window [Figure 29].
444 Excavator 16 4900041-EN (09-06)

Front window
Figure 31 Opening The Front Window (emergency exit)
Note: The right hand latch is shown. The procedure is the

same for both latches.
Figure 33
1
Unlock
S0825 Lock
1
Figure 32
S0827

1 Latches Turn the two latches to the unlocked
position.
Figure 34
1
S0826

1 The front window The front window is equipped with a
wiper and moveable sunvisor.
S0828
Use both window grab handles to pull the top of the win-
dow in [Figure 34].
Continue moving the window in and up over the operator's
head.
4900041-EN (09-06) 17 444 Excavator

Figure 35 Figure 37
1
Unlock
Lock Unlock
Lock
1
S0829 S0831

1 The front window The front window is equipped with a 1 Latches Rotate the two latches to the locked
wiper and moveable sunvisor. position.
Closing The Front Window (emergency exit)

Figure 36
Lock Unlock
S0830

1 Latches Rotate the two latches to the
unlocked position.
Use both window grab handles to pull
the window down
444 Excavator 18 4900041-EN (09-06)

Front window ventilation Top window
The front window may be opened approximately 181 mm. Sun shade
Figure 38
The top window is equipped with a retractable sun shade.
Figure 39
1
S0832
S0833

Figure 40
1 Locks Pull back on the window until the
locks engage the slots in the window
hinge.
2
1
S0834

1 Handle To extend the shade, pull the handle
towards the rear of the Excavator.
2 Right bracket Engage the ends of the shade in the
left and right brackets.
Hold the handle and allow the shade
to slowly retract to the stored
position.
4900041-EN (09-06) 19 444 Excavator

Wiper/washer fluid reservoir Vents
Figure 43
Figure 41
S0838
S0835
Figure 44
1 Reservoir The reservoir is located behind the
operators seat on the left side of the
Excavator.
Use an antifreeze washer solution in
freezing temperatures.
1
Heating, air conditioning (option) and ventilation
Cab fresh air vent
The cab fresh air vent is located behind the operators seat.
Figure 42
S0839
Figure 45
Open Close
1
1
S0837
S0840
1 Lever Move the lever to the right to close
the vent.
Move the lever to the left to open the Reference Description Function
vent.
1 Heat and air There are four heat and air
conditioning vents conditioning vents.
Turn the vents to direct air as
desired.
444 Excavator 20 4900041-EN (09-06)

Changing work attachments
General Procedure for changing work attachments
Various working attachments are available to achieve

maximum utilization of the machine for a variety of
applications. IMPORTANT
The machine is equipped with a quick-attach system to In the case of a hydraulically controlled attachment,
shorten the time it would take to install attachments. first of all the hydraulic connection must be discon-
nected (after relieving pressure).
When mounting a clamshell grab, rotatable ditch-cleaning
bucket or a hydraulic rock breaker, an additional control
circuit is required. Additionally, an open return (return line For replacement, the work attachment must be lowered to
directly to tank) may be required when operating the the ground and positioned so that it cannot tilt.
hydraulic rock breaker.
Figure 46
WARNING
When the attachments have been removed, they
must be secured against tilting and overturning to
avoid possible injuries to persons.
IMPORTANT
The system must be relieved of pressure before
hydraulic connections are disconnected. 1
S01105
The quick-mount hitch is then opened with the control rod

until the locking bolts are completely retracted.
Check the function of the quick-mount hitch lock and
grease the bolts if necessary.
Attach another work attachment and close the quick-
mount hitch until the locking bolts are completely extended
and the lock is in place.
The control rod must be kept in the drivers’s cab.
4900041-EN (09-06) 21 444 Excavator

Clamshell grab bucket
Attaching the clamshell grab bucket Retract the bucket cylinder piston rod completely.
Figure 47
Turn the diverter valves clockwise on both sides
(position 3 on [Figure 48]) to direct hydraulic flow to the
auxiliary quick couplers for clamshell open/close functions
bucket.
WARNING
Whilst assembling and using a clamshell
grab with the quick-attach system, the bucket
cylinder piston rod must be fully retracted.
S0814
IMPORTANT
When the grab is operated, the change-over switch must Remove any dirt or debris from the surface of both
be in position “Rock breaker OFF” (see [Figure 25]) the male and female couplers. Visually check the
Ensure that the indicator lamp in the switch is OFF. couplers for corroding, cracking, damage, or
excessive wear. If any of these conditions exist, the
Attach the clamshell grab and close the quick mount hitch. coupler(s) must be replaced. Remove the protec-
tive caps
Figure 48
Connect the swivel motor to the couplings (position 1 on

[Figure 48]). Thread the couplers from the attachment to
the couplers on the Excavator. Tighten the couplers until
LEFT SIDE fully seated.
4 Connect the “open / close” function to the couplings

(position 2 on [Figure 48]).Thread the couplers from the
attachment to the couplers on the Excavator. Tighten the
couplers until fully seated.
Thread the protective caps together.
3
2 Note: When the grab has been dismantled, re-open the di-
verter valves (position 3 on [Figure 48]) and Install
1
bucket cylinder the protective caps on the quick couplers.
additional control
circuit
WARNING
RIGHT SIDE AVOID BURNS
Hydraulic fluid, tubes, fittings and quick cou-
plers can get hot when running machine and
3 attachments. Be careful when connecting
and disconnecting quick couplers.
1 2
additional control bucket cylinder
circuit
S01104
444 Excavator 22 4900041-EN (09-06)

Operating the clamshell grab bucket
Figure 51
WARNING
Keep all bystanders 6 m away from equip-
ment when operating. Contact with moving
parts, a trench cave-in or flying objects can
Figure 49
2 S0953
Move the right joystick to the right (2) [Figure 49] to open
the clamshell [Figure 51].
Figure 52
2
S0865
1
Figure 50
S0865
Figure 53
S0952
Move the right joystick to the left (1) [Figure 49] to close
the clamshell [Figure 50].
S0955
Push and hold the switch (1) [Figure 52] to rotate the
bucket in the counter clockwise direction [Figure 53].
Push and hold the switch (2) [Figure 52] to rotate the
bucket in the clockwise direction [Figure 53].
4900041-EN (09-06) 23 444 Excavator

Attaching the rock breaker
The hydraulic rock breaker is mechanically attached in the

same manner as a bucket attachment.
WARNING
The hydraulic pressure supply for the rock breaker is con-
Before mounting an unapproved rock beater, nected to the lines of the additional control circuit
it is essential to consult your dealer. (position 1 on [Figure 48]) by a hose coupling.
OPTION: The hydraulic pressure supply for rock breakers
of foreign brand is connected to a line of the additional con-
IMPORTANT trol circuit and the return via the open return line
The mounting and operating instructions of the connection.
hydraulic rock breaker manufacturer must be Figure 55
observed.
The hydraulic circuit of the rock breaker must be
secured according to the instructions of the
hydraulic rock breaker manufacturer.
Standard protection: 4351 psi/ 300 BAR
Figure 54
S0814
LEFT SIDE
4 Set the change-over switch (see figure [Figure 55]) to

“Rock breaker operation”.
2
bucket cylinder
1
additional control
circuit
RIGHT SIDE
1 2
additional control bucket cylinder
circuit
S01104
444 Excavator 24 4900041-EN (09-06)

Auxiliary hydraulic flow adjustment
The auxiliary hydraulic flow can be increased or Figure 58

decreased.
Figure 56
S0875
S0873

1 Control valve The auxiliary hydraulic flow control
valve is located under the cab floor.
1 Floormat Pull up on and remove the floormat. Figure 59
Figure 57
1 1
S0876
S0874

1 Nut Loosen the nut and turn the
Reference Description Function adjustment screw in to increase
1 Battery compartment Remove the battery compartment auxiliary hydraulic flow. Tighten the
cover cover. nut after the flow adjustment has
been made.
Note: Maximum Flow – 100 LPM

Minimum Flow – 0 LPM
4900041-EN (09-06) 25 444 Excavator

Relieving hydraulic pressure Daily inspection

Stop the engine and turn the key to the RUN position. Check the following items before each day of operation:
Figure 60 Maintenance work must be done at regular intervals. Fail-
ure to do so will result in excessive wear and early failures.
The Service Schedule is a guide for correct maintenance
of the Bobcat Excavator. It is located inside the rear door
of the Excavator and also in the MACHINE SIGN TRANS-
LATION SECTION.
• Operator Cab and mounting hardware.
• Seat belt and mounting hardware.
• Damaged decals, replace as needed.
1 • Check control console lockout.
• Air cleaner and intake hoses.
• Engine oil level and for engine leaks.
• Hydraulic fluid level and system for leaks.
S0864
• Grease all pivot points.
• Cylinder and attachment pivot points.
• Track tension.
Reference Description Function • Repair broken and loose parts.
1 hydraulic breaker Press the hydraulic breaker switch
switch OFF. The light is not illuminated.
Figure 61 WARNING
Instructions are necessary before operating
or servicing machine. Read and understand
1 the Operation & Maintenance Manual, Hand-
book and signs (decals) on machine. Follow
1 warnings and instructions in the manuals
when making repairs, adjustments or servic-
ing. Check for correct function after adjust-
ments, repairs or service. Untrained
operators and failure to follow instructions
can cause injury or death.
Fluids such as engine oil, hydraulic fluid, coolants,

etc.must be disposed of in an environmentally safe man-
S0865 ner.Some regulations require that the certain spills and
leaks on the ground must be cleaned in a specific manner.
See local, state and federal regulations for correct
disposal.
1 Switches Press the switches (1) on the right
control lever several times to relieve
the hydraulic pressure.
Turn the key to the OFF position.
444 Excavator 26 4900041-EN (09-06)

Figure 62
SERVICE SCHEDULE
EVERY 8-10 HOURS (50 hrs)
Check engine coolant level.

Check engine oil level. (50 hrs)
Check hydraulic fluid level.
Check and adjust track tension.
Check indicator lights for correct operation.
Check canopy or *cab condition and mounting hardware.
(qty 2)
Check seat belt condition and mounting hardware.
Check for damaged signs (decals) - Replace as needed.
Grease all machinery pivot points. (See illustrations)
Drain water and sediment from fuel tank and fuel filter.
(qty 3)
Check control console lockout for proper operation.
Check for leaks and or tightness of pipes, hoses, control unit,
hydraulic pumps, cylinders, etc.
(qty 2)
4 3
EVERY 50 HOURS
Grease swing pinion, swing circle and door hinges.
Check battery, cables and electrolyte level.
7
EVERY 100 HOURS 6
Check and adjust belt(s) if required.
5
(qty 2)
EVERY 250 HOURS
Check oil level in both final drive cases.
Clean radiator, oil cooler, *A/C condenser and clean / replace 1 2
cab ventilation filter.
8
EVERY 500 HOURS (50 hrs)
Replace hydraulic filter.

Check alternator and starter connections.
Replace diesel fuel filter and prefilter.
Check air intake.
Replace engine oil and filter.
IMPORTANT FILTER CHART
EVERY 1000 HOURS OR EVERY 6 MONTHS THIS MACHINE IS FACTORY EQUIPPED WITH A 1.
PRIMARY
AIR 5501660922
Check and adjust engine valve clearance. U.S.D.A. FORESTRY SERVICE APPROVED SPARK FILTER
ARRESTOR EXHAUST SYSTEM.
Replace oil in both final drive cases. THE SPARK ARRESTOR MUFFLER, IF EQUIPPED, 2.
SECONDARY
AIR 5501660924
Drain and flush cooling system - Replace coolant. MUST BE CLEANED TO KEEP IT IN WORKING FILTER
CONDITION. THE SPARK ARRESTOR MUFFLER MUST
Replace hydraulic fluid and filter(s) - Clean reservoir. BE SERVICED BY DUMPING THE SPARK CHAMBER 3.
ENGINE
OIL 5411656298
EVERY 100 HOURS OF OPERATION. FILTER
ON SOME MODELS, THE TURBOCHARGER FUNCTIONS FUEL
AS THE SPARK ARRESTOR AND MUST OPERATE 4. FILTER 5411656493
CORRECTLY FOR PROPER SPARK ARRESTOR
FUNCTION. FUEL
5. PRE FILTER 5445100004
IF THIS MACHINE IS OPERATED ON FLAMMABLE
FOREST, BRUSH OR GRASS COVERED LAND, IT MUST HYDRAULIC
BE EQUIPPED WITH A SPARK ARRESTOR 6. VENTILATION 5501655650
ATTACHED TO THE EXHAUST SYSTEM AND FILTER
MAINTAINED IN WORKING ORDER. FAILURE TO DO
HYDRAULIC
SO WILL BE IN VIOLATION OF CALIFORNIA STATE 7. INSERT 5380658088
LAW, SECTION 4442. PRC. FILTER
* Service only when machine is equipped with this item. REFER TO LOCAL LAWS AND REGULATIONS FOR SPARK CAB
Service at first 50 hours, then as scheduled. ARRESTOR REQUIREMENTS. 8. VENTILATION 5501661034
FILTER
Service at first 100 hours, then as scheduled. SEE THE OPERATION AND MAINTENANCE MANUAL FOR
MORE INSTRUCTIONS. • See illustrations above for filter locations.
• See Operation & Maintenance Manual for more information and instructions. G7-05-4800158-EN
4900041-EN (09-06) 27 444 Excavator

Pre-starting procedure
Figure 63 Figure 65
2 3
4
3
1
1
S0836
5 S0882

1 Operator's Handbook Read and understand the Operation 1 Lever Pull up on the lever to adjust the seat
& Maintenance Manual and the forward or backward.
Operator's Handbook before 2 Lever Pull up on the to adjust the bottom of
operating. the seat forward or backward.
3 Lever Pull up on the lever to adjust the
Figure 64 incline of the seat bottom.
4 Knob Turn the adjustment knob until the
5 Window operators weight is shown in the
window. The seat is adjustable from
50 Kg to 130 Kg.
Figure 66
S01102
Use the grab handles and the tracks to enter the Excavator
[Figure 25].
S0883

1 Lever Pull up on the lever to change the
incline of the seat back.
444 Excavator 28 4900041-EN (09-06)

Figure 67 Figure 69
1
1
S0884 S0886

1 Knob Turn the adjustment knob to adjust 1 Wheel Rotate the adjustment wheel to raise
the lumbar support in the seat back. or lower the armrests.
Figure 68 Figure 70
1
1
S0885 S0887

1 Arm rest Raise the arm rest. 1 Mirror Adjust the mirror for a clear view to
the rear of the Excavator from the
operator’s seat.
Note: The right armrest is shown. The procedure is the
same for the left arm rest.
4900041-EN (09-06) 29 444 Excavator

Figure 71
S0888

1 Seat belt Fasten the seat belt.
Figure 72
S0889
Lower the control console [Figure 72].
Note: There is a control lock switch in the left console

which deactivates the hydraulic control levers (joy-
sticks) and the traction drive system when the con-
trol console is in the raised position. The console
must be in the down position for the hydraulic control
levers (joysticks) and traction system to operate.
Note: If the control lock switch does not deactivate the con-
trol levers and the traction system when console is
raised, see your Bobcat dealer for service.
444 Excavator 30 4900041-EN (09-06)

Starting the engine
Key switch
Perform the “Pre-starting procedure” on page 28. Figure 75
Stop
WARNING Run/Preheat
Start
• Fasten seat belt, start and operate only
from the operator seat.
• Never wear loose clothing when working
1
near machine.
S0892
Figure 73

1 Key Turn the key (1) [Figure 75] to the
RUN/PREHEAT position.
Figure 76
1
S0845

1 Levers Put the control levers in the neutral
S0893
position.
Figure 74
2 1 Glow plug light The glow plug light will be

illuminated, showing the glow plugs
are on. Wait for the light to go off.
When the glow plug light goes out,
turn the key to the start position and
release the key when the engine
1 starts.The key will return to the run
position.
Low
Stop the engine if the warning lights
Speed
and alarm do not go off. Check for
the cause before starting the engine
High again.
Speed
Turn the key switch OFF to stop the
engine.
S0867
IMPORTANT
Do not engage the starter for longer than 15 seconds at
1 Engine speed control Move the engine speed control fully a time. Longer use can damage the starter by overheat-
forward to the low speed position.
ing. Allow starter to cool for one minute before using
starter again.
4900041-EN (09-06) 31 444 Excavator

Cold temperature starting procedure Figure 78
If the temperature is below freezing, perform the following

to make starting the engine easier:
1
Replace the engine oil with the correct type and viscosity
or the anticipated starting temperature. (“Fluid Specifica-
tions” on page 91.)
Make sure the battery if fully charged.
Note: If the battery is discharged (but not frozen) a booster

battery can be used to jump start the Excavator.
(“Using A Booster Battery (Jump Starting)” on
page 60.)
Install an engine heater. S0893
Figure 77

2 1 Glow plug/manifold The glow plug/manifold heat light will
heat light be illuminated showing the glow
plugs are on. Wait for the light to go
off.
When the light goes out, turn the key
to the start position and release the
1 key when the engine starts. The key
will return to the run position.
Low
Speed When the engine speed increases,
move the speed control lever to the
low speed position until the engine
High
warms up. Turn the key switch off to
Speed stop the engine.
S0867
IMPORTANT
1 Speed control lever Move the speed control lever back to Do not engage the starter for longer than 15 seconds at
the high speed position. a time. Longer use can damage the starter by overheat-
2 Key Turn the key to the RUN / PREHEAT ing. Allow starter to cool for one minute before using
position.
starter again.
IMPORTANT
Machines warmed up with moderate engine speed and
light load have longer life.
IMPORTANT
Do not use ether with glow plug (preheat) systems.
Explosion can result which can cause in jury or death,
or severe engine damage.
444 Excavator 32 4900041-EN (09-06)

Operating procedure
Rated Operating Capacity
The capacity of the excavator changes as the boom/arm is raised or extended.

The Rated Operating Capacity table below (see also “Rated Operating Capacity” on page 86) shows the capacity of the
machine at different load positions.
Figure 79
EXCAVATOR MODEL 444

WARNING CIRCUIT PRESSURES
WORKING
HOLDING
360 bar
380 bar
BOOM LENGTH
ARM LENGTH
RUBBER TRACKS
3750 mm
2000 mm
500 mm
OVERLOAD CAN TIP THE EXCAVATOR
AND CAUSE INJURY OR DEATH
• Do not lift or hold any load that exceeds these
ratings at their specified load radii and height.
• Total rated load is shown. The weight of all lifting
devices must be deducted to determine the net
load that can be lifted.
Where applicable, specifications conform to ISO Standards. Specifications Lift Point Height
are subject to change without notice. Lift Point is bucket hinge point with
standard bucket attached and bucket cylinder fully extended.
Lift Radius
RATED LIFT CAPACITY RATED LIFT CAPACITY RATED LIFT CAPACITY

LIFT OVER BLADE, BLADE DOWN - kg OVER BLADE, BLADE UP - kg OVER SIDE, BLADE UP - kg
POINT
HEIGHT LIFT RADIUS - mm LIFT RADIUS - mm LIFT RADIUS - mm
mm 3200 4000 5000 6000 3200 4000 5000 6000 3200 4000 5000 6000
3000 4800 3580 3020 2680 3150 3530 2320 2030 - 3280 2260 1690
1500 7190 5320 3900 3250 4660 3530 2600 1980 3830 2070 2070 1620
Ground 7300 5910 4530 2870 4700 3210 2410 1140 3920 2590 1950 1480
-500 6840 5370 4400 3690 4450 3260 2340 1770 3620 2610 1910 1500
G7-05-4800157-EN
Operating on public roads
When operating on a public road or highway, always follow local regulations. For example: A slow moving vehicle (SMV)
sign, or direction signals may be required.
Check with utility companies for underground electrical, water, gas lines, etc. Work slowly in areas of underground utili-
ties.
4900041-EN (09-06) 33 444 Excavator

Lifting a load
WARNING WARNING
AVOID INJURY OR DEATH AVOID INJURY OR DEATH
DO NOT exceed rated operating capacity. Check area to be dug for overhead or under-
Excessive load can cause tipping or loss of ground lines such as electrical, gas, oil,
control. water, etc. CALL1-888-258-0808 and consult
local utilities before digging. Extreme caution
must be used in areas where lines are
Extend the bucket cylinder completely and lower the boom present.
to the ground. Stop the engine. Wrap the chain assembly
around the bucket mounting plate.
Figure 80
WARNING
Keep all bystanders 6 m away from equip-
ment when operating. Contact with moving
parts, a trench cave-in or flying objects can
S0896
Make sure the load is evenly weighted and centered on the

lifting chain, and is secured to prevent the load from shift-
ing [Figure 80].
Lift and position the load. When the load is in position and
tension is removed from the lift chain (secondary lift sys-
tem), remove the secondary lift system.
444 Excavator 34 4900041-EN (09-06)

Excavating
Lower the blade to provide stability. Note: Do not allow the bucket teeth to contact the ground
Figure 81 when swinging the upperstructure.
Figure 84
MS1855
S0900
Extend the arm, lower the boom and open the bucket
[Figure 81]. Extend the arm and uncurl the bucket to dump the material
Figure 82 into a pile or truck [Figure 84].
IMPORTANT
Avoid operating hydraulics over relief pressure. Failure
to do so will overheat hydraulic components.
Figure 85
WRONG
MS1856
Retract the arm, while lowering boom and curling the

bucket [Figure 82].
Figure 83
MS-1857
Do not dig under the Excavator [Figure 85].

Do not use the bucket as a breaker or pile driver. It is better
to excavate hard or rocky ground after breaking it with
other equipment. This will reduce damage to the
Excavator.
Do not move the Excavator while the bucket is in the
ground.
Dig only by moving the boom and arm toward the
MS1854
Excavator.
Raise the boom, retract the arm and curl the bucket Do not back dig (digging by moving the boom and arm
[Figure 83]. away from the Excavator). Damage to the attachments
may occur.
Rotate the upperstructure.
4900041-EN (09-06) 35 444 Excavator

Boom offset
Figure 86 Figure 89
S0902 S0905
Figure 87
The boom offset allows the operator to dig close to build-
ings and other structures [Figure 89].
S0903
Figure 88
S0904
Swing the upperstructure, offset the boom to the right

[Figure 86], centre [Figure 87], and left [Figure 88] to dig
a square hole the width of the machine without reposition-
ing the Excavator.
444 Excavator 36 4900041-EN (09-06)

Backfilling Driving the excavator
Figure 90 When operating on uneven ground, operate as slow as

possible and avoid sudden changes in direction.
Avoid travelling over objects such as rocks, trees, stumps,
etc.
When working on wet or soft ground, put planks on the
ground to provide a solid base to travel on and prevent the
Excavator from getting stuck.
Figure 91
S0906
Use the blade to backfill the trench or hole after excavating

[Figure 90].
1
S0907
If one or both tracks have become stuck in soft or wet

ground, raise one track at a time by turning the upperstruc-
ture and pushing the bucket against the ground
[Figure 91].
Put planks under the tracks (1) [Figure 91] and drive the
Excavator to dry ground.
Figure 92
S0908
The bucket may also be used to pull the Excavator. Raise

the blade, extend the arm and lower the boom. Operate
the boom and arm in a digging manner [Figure 91].
4900041-EN (09-06) 37 444 Excavator

Operating on slopes
WARNING WARNING
AVOID INJURY OR DEATH AVOID INJURY OR DEATH
• Do not travel across or up slopes that are • Avoid steep areas or banks that could
over 15 degrees. break away.
• Do not travel down or back up slopes that • Keep boom centred and attachments as
exceed 25 degrees. low as possible when travelling on slopes
or in rough conditions. Look in the direc-
• Look in the direction of travel. tion of travel.
• Always fasten seat belt.
When going down a slope, control the speed with the
steering levers and the speed control lever.
Figure 94
Figure 93
Travelling on side
Travelling down or slopes
backing up slopes
304 mm
Maximum
25˚ max 15˚ max

S0909 S0910
When going down grades that exceed 15 degrees, put the Figure 95
machine in the position shown, and run the engine slowly
[Figure 93].
Travelling up slopes
Operate as slow as possible and avoid sudden changes in
lever direction.
Avoid travelling over objects such as rocks, trees, stumps,
etc.
Stop the machine before moving the upper equipment
controls. Never allow the blade to strike a solid object.
Damage to the blade or hydraulic cylinder can result.
15˚ max
S0911
When travelling up slopes or on side slopes that are 15

degrees or less, position the machine as shown and run
the engine slow [Figure 94] & [Figure 95].
444 Excavator 38 4900041-EN (09-06)

Figure 96 Figure 97
Recommended position for working on a slope

1 1
S0912 S0845
When operating on a slope, level a work area [Figure 96]

before beginning.
If this is not possible, the following procedures should be 1 Steering levers To brake the machine when going
used: down a slope, move the steering
levers to the NEUTRAL position. This
Do not work on slopes which are over 15 degrees. will engage the hydrostatic braking.
When the engine stops on a slope,
Use a slow work cycle. Avoid working with the tracks move the steering levers to the
neutral position. Lower the boom/
across the slope. This will reduce stability and increase the
bucket to the ground.
tendency for the machine to slide.Position the Excavator
with the blade downhill and lowered. Avoid swinging or
Note: If the engine stops, the boom/bucket (attachments)
extending the bucket more than necessary in a down hill
can be lowered to the ground using hydraulic pres-
direction. When you must swing the bucket downhill, keep
sure which is stored in the accumulator. The console
the arm low and skid the bucket downhill.
must be in the down position, and the key switch in
When working with the bucket on the uphill side, keep the the ON position. Use the control lever to lower the
bucket as close to the ground as possible. Dump the soil boom.
far enough away from the trench or hole to prevent the
possibility of a cave in. Start the engine and resume operation.
4900041-EN (09-06) 39 444 Excavator

Operating in water Parking the excavator
Mud and water should be removed from the machine Stop the machine on level ground. Lower the work equip-
before parking. In freezing temperatures, park the machine ment and the blade to the ground.Run the engine at idle
on boards or concrete to prevent the track or undercar- speed for about 5 minutes to allow it to cool.
riage from freezing to the ground and preventing machine
Figure 99
movement.
Figure 98
2
S0867
Water Level

S1107 1 Speed control lever Move the speed control lever fully
forward to the low engine speed
position.
Do not operate or immerse the Excavator in water higher 2 Key switch Turn the key switch to STOP.
than the bottom of the swing circle [Figure 98].
Disconnect the seat belt. Remove the key from the switch
Grease the Excavator when it has been operated or to prevent operation of machine by unauthorized person-
immersed in water for a period of time. Greasing forces the nel. Raise the control console and exit the machine.
water out of the lubrication areas.
Water must be removed from the cylinder rods. If water
freezes to the cylinder rod, the cylinder seals can be
damaged when the rod is retracted.
444 Excavator 40 4900041-EN (09-06)

Recovery and transport of the machine
Recovery of the machine • Switch off the engine.

• Dismount from the excavator and close the doors.
In order to recover the machine, the following tow fixing
• Attach the excavator to the 3-point hoisting appliance at
points are present: the points illustrated ([Figure 101]) in the correct man-
Figure 100 ner.
Figure 101
2 2
1
1
S1107
S1108
Reference Description
1 Lugs on chassis (crawler frame, rear) Reference Description Function
2 Towing hitch on chassis (crawler frame, front)
1 Blade Fasten chains to the ends of the
3 Towing lug - rear centre of chassis blade and up to a lifting fixture above
the cab. The lifting fixture must
extend over the sides of the cab to
prevent the chains from hitting the
Lifting the machine cab.
2 Towing eye Fasten a chain to the towing eye and
up to a lifting fixture.
WARNING
• Use a lifting fixture with sufficient capacity
for the weight of the Excavator plus any
added attachments.
• Maintain centre of gravity and balance
when lifting.
• Do not swing boom or upperstructure.
• Never lift with operator on machine.
To load the excavator onto a flat bed trailer, etc., the fol-
lowing activities must be carried out:
• Empty and fold in the bucket.
• Position the work equipment straight ahead.
• Slew the uppercarriage in such a way that the work
equipment is in “straight ahead” position, as opposed to
the dozer blade.
• Completely raise the boom.
• Retract the dipperstick.
4900041-EN (09-06) 41 444 Excavator

Transport of the machine
When transporting the machine, observe the rules, motor Figure 102
vehicle laws and vehicle limit ordinances. Use a transport
and towing vehicle of adequate length and capacity.
Secure the parking brakes and block the wheels of the
transport vehicle.
Align the ramps with the centre of the transport vehicle.
Secure the ramps to the truck bed and be sure ramp angle
does not exceed 15 degrees.
Use metal loading ramps with a slip resistant surface.
Use ramps that are the correct length and width, and can
support the weight of the machine.
The rear of the trailer must be blocked or supported when
loading or unloading the Excavator to prevent the front of
the transport vehicle from raising.
Determine the direction of the track movement before
moving the machine (blade forward).
During transport on a flat bed trailer, by rail, etc., the
machine must be properly lashed at the marked points and
secured with chocks. S0916
To do so, lower the dozer blade and rest the work equip-
ment on the ground.
Put blocks at the front and rear of the tracks.
WARNING
Be aware of the total transport height!
Risk of accident when driving in tunnels,
under bridges, etc.!
444 Excavator 42 4900041-EN (09-06)

PREVENTIVE MAINTENANCE
Table of contents
Maintenance safety .........................................................................................................................................................45
Servicing schedule ..........................................................................................................................................................46

Chart .....................................................................................................................................................................46
Rear cover.......................................................................................................................................................................47
Opening and closing the rear cover ......................................................................................................................47
Right side cover ..............................................................................................................................................................47

Opening And Closing The Right Side Cover.........................................................................................................47
Air cleaner .......................................................................................................................................................................48

Daily check............................................................................................................................................................48
Replacing the filters ..............................................................................................................................................48
Fresh Air Filter.................................................................................................................................................................49
Fuel system.....................................................................................................................................................................50
Fuel specifications ................................................................................................................................................50
Filling the fuel tank ................................................................................................................................................50
Removing Water From The Pre-Filter ...................................................................................................................51
Pre-Filter Removal ................................................................................................................................................51
Pre-Filter Installation .............................................................................................................................................52
Fuel Filter Removal And Installation .....................................................................................................................52
Draining The Fuel Tank ........................................................................................................................................53
Engine lubrication system ...............................................................................................................................................54

Checking engine oil...............................................................................................................................................54
Oil Chart................................................................................................................................................................54
Replacing Oil And Filter ........................................................................................................................................54
Cooling system................................................................................................................................................................56
Cleaning The Cooling System ..............................................................................................................................56
Replacing The Coolant .........................................................................................................................................57
Electrical system .............................................................................................................................................................58

Description ............................................................................................................................................................58
Fuse And Relay Location......................................................................................................................................59
Using A Booster Battery (Jump Starting) ..............................................................................................................60
Removing And Installing The Battery....................................................................................................................62
Alternator belt..................................................................................................................................................................63
Adjusting Belt Tension ..........................................................................................................................................63
4900041-EN (09-06) 43 444 Excavator

Fan / Fuel pump belt ...................................................................................................................................................... 63

Adjusting Belt Tension ......................................................................................................................................... 63
Air conditioning compressor belt .................................................................................................................................... 64

Adjusting Belt Tension ......................................................................................................................................... 64
Hydraulic system ............................................................................................................................................................ 64

Checking And Adding Hydraulic Oil ..................................................................................................................... 64
Replacing The Hydraulic Oil................................................................................................................................. 65
Hydraulic Filter Removal ...................................................................................................................................... 66
Hydraulic Filter Installation ................................................................................................................................... 66
Diagnostic Couplers ............................................................................................................................................. 67
Track tension.................................................................................................................................................................. 68
Rubber Track Clearance ...................................................................................................................................... 68
Steel Track Clearance.......................................................................................................................................... 68
Adjustment ........................................................................................................................................................... 69
Travel motor ................................................................................................................................................................... 72

Checking Oil Level ............................................................................................................................................... 72
Draining The Travel Motor ................................................................................................................................... 72
Lubrication of the hydraulic excavator............................................................................................................................ 73
Lubrication of attachments ............................................................................................................................................. 77

Swing Bucket Lubrication..................................................................................................................................... 77
Clamshell Bucket Lubrication............................................................................................................................... 77
444 Excavator 44 4900041-EN (09-06)

Maintenance safety
WARNING
Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Opera-
tor’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or
servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can
Correct Correct Correct
Never service the Bobcat Compact Use the correct procedure to lift and Cleaning and maintenance are required
Excavator without instructions. support the excavator. daily.
Wrong Wrong Wrong
Have good ventilation when welding or Vent exhaust to outside when engine Always lower the bucket and blade to
grinding painted parts. must be run for service. the ground before doing any mainte-
nance.
Wear dust mask when grinding painted Exhaust system must be tightly sealed.
parts. Toxic dust and gas can be produ- Exhaust fumes can kill without warning. Never modify equipment or add attach-
ced. ments not approved by Bobcat Com-
pany.
Wrong Wrong Wrong
Stop, cool and clean engine of flamma- Keep body, jewelry and clothing away Lead-acid batteries produce flammable
ble materials before checking fluids. from moving parts, electrical contact, and explosive gases.
hot parts and exhaust.
Never service or adjust machine with Keep arcs, sparks, flames and lighted
the engine running unless instructed to Wear eye protection to guard from bat- tobacco away from batteries.
do so in the manual. tery acid, compressed springs, fluids
under pressure and flying debris when Batteries contain acid which burns eyes
Avoid contact with leaking hydraulic engines are running or tools are used. or skin on contact.
fluid or diesel fuel under pressure. It can Use eye protections approved for type
penetrate the skin or eyes. of welding. Wear protective clothing. If acid con-
tacts body, flush well with water. For eye
Never fill fuel tank with engine running, Keep rear door closed except for ser- contact flush well and get immediate
while smoking, or when near open vice. Close and latch door before opera- medical attention.
flame. ting the excavator.
Maintenance procedures which are given in the Operation & Maintenance manual can be performed by the owner/operator without any specific tech-
nical training. Maintenance procedures which are not in the Operation & Maintenance manual must be performed ONLY BY QUALIFIED BOBCAT
SERVICE PERSONNEL. Always use genuine Bobcat replacement parts. The Service Safety Training course is available from your Bobcat dealer.
4900041-EN (09-06) 45 444 Excavator

Servicing schedule
Chart
Maintenance work must be done at regular intervals. Fail- WARNING

ure to do so will result in excessive wear and early failures.
Instructions are necessary before operating or
The servicing schedule is a guide for correct maintenance
servicing machine. Read and understand the Oper-
of the Bobcat excavator.
ation & Maintenance Manual, Handbook and signs
(stickers) on machine. Follow warnings and
instructions in the manuals when making repairs,
adjustments or servicing. Check for correct func-
tion after adjustments, repairs or service. Untrained
operators and failure to follow instructions may
SERVICING SCHEDULE HOURS
1000
ITEM SERVICE REQUIRED 8-10 50 100 250 500
(***)
Engine Coolant Check coolant level. Add premixed coolant as needed.
Engine Oil Check the engine oil level and add as needed.
Hydraulic Fluid, Hoses and Check the hydraulic fluid level and add as needed. Check for damage
Tubelines and Reservoir Breather and leaks. Repair or replace as needed.
Cap
Tracks Tension Check and adjust track tension as needed.
Indicators and Lights Check for correct operation of all indicators and lights.
Operator Canopy/Cab Check cab/canopy condition and hardware.
Seat Belt Check condition. Check mounting fixings.
Safety Signs and Safety Treads Check for damaged signs (stickers) and safety treads. Replace any
signs or safety treads that are damaged or worn.
Pivot Points Grease all machinery pivot points.
Fuel Tank & Filter Drain water and sediment from fuel tank and fuel filter.
Control Console Check control console lockout for proper operation.
Swing Circle & Pinion Grease swing circle and swing pinion.
Door Hinges Grease door hinges.
Battery Check battery, cables, connections and electrolyte level. Add distilled
water as needed.
Belts Check and adjust bolts. (*)
Travel Motor Check lubricant level in both travel motors.
Hydraulic Oil Cooler, *Engine Oil Clean radiator/oil cooler fins. Clean A/C condenser. Clean/replace cab (**)
Cooler, *Radiator, A/C Condenser filter.
and Cab Ventilation Filter
Hydraulic Filter Replace the filter. (**)
Engine Oil & Filter Replace engine oil and filter. (**)
Air Filter Intake Check/clean air filter intake
Alternator & Starter Check alternator and starter connections.
Fuel Filters Replace diesel fuel pre-filter and filter.
Engine Valves Check and adjust engine valve clearance.
Travel Motors Replace oil in both travel motors. (**)
Engine Cooling System Drain and flush cooling system. Replace coolant.
(Watercooled engines only.)
Hydraulic System Replace hydraulic fluid and filter. Clean reservoir.
(*) Also at first 50 hours
(**) Also at first 100 Hours
(***) Or every 6 months.
444 Excavator 46 4900041-EN (09-06)

Rear cover Right side cover
Opening and closing the rear cover Opening And Closing The Right Side Cover
Figure 104
WARNING
Never service or adjust the machine when the
engine is running unless instructed to do so in the
manual.
WARNING
Keep the rear door closed when operating the
machine. Failure to do so could seriously injure a 1
bystander.
S0963
Figure 103
1. Push the latch (1) and raise the right side cover.
2. Lower the right side cover and push down firmly to

close the rear cover.
Note: The start key can be used to lock the right side
cover.
S0962
1. Push the latch (1) and raise the rear cover.
2. Lower the rear cover and push down firmly to close the
rear cover.
Note: The start key can be used to lock the rear cover.
4900041-EN (09-06) 47 444 Excavator

Air cleaner
Daily check Replacing the filters
See (“Servicing schedule” on page 46 for the correct serv- Outer filter
ice interval.)
2. Unlatch the air filter cover latches (2) [Figure 106].
Figure 105
3. Remove the air filter cover (2) [Figure 106].
Figure 107
1
1
S0811
S0965

1 Air filter condition If the air filter condition indicator is 4. Remove the outer filter (1).
indicator illuminated, the outer filter element
needs to be replaced. 5. Check the housing for damage.
Replace the inner filter every third
time the outer filter is replaced. 6. Clean the housing and seal surface. Do not use com-
pressed air.
Figure 106
7. Install the outer filter.
1 8. Install the cover.
2
2 3
S0964
1. Open the right side cover to inspect the air intake (1)
for damage or restrictions.
444 Excavator 48 4900041-EN (09-06)

Inner Filter Fresh Air Filter

Figure 109
Replace the inner filter every third time the outer filter has
been replaced.
Replace the inner filter after the outer filter has been
replaced and the air filter indicator is still illuminated.
Remove the air cleaner cover and outer filter.
1. Pry up on the ends of the air filter (1).

2. Pull the air filter (2) out of the housing.
3. Discard the inner air filter after it has been removed.
4. Do not clean or reuse the filter. Make sure all sealing

surfaces are free of dirt and debris.
Figure 108 S0970
Position the Excavator as shown [Figure 109].

Figure 110
1
1
S0967
5. Install the new inner filter (1). Install the, outer filter and S0971
air cleaner cover.
1. Remove the eleven bolts and washers of the cover
plate (1) [Figure 110].
Installation: Tighten the bolts to 24-26 Nm torque.
2. Remove the cover (1).

Figure 111
1
1
2 1
1
S0972
3. Remove the four bolts (1).
4. Remove the filter (2).
4900041-EN (09-06) 49 444 Excavator

Fuel system
Fuel specifications Filling the fuel tank
Use only clean, high quality diesel fuel, Grade No. 2 or 1. Open the rear cover and remove the fuel fill cap
Grade No. 1.
Note: The fuel fill cap can be locked. Use the fuel fillcap
The following is a suggested blending guideline which key to lock and unlock the cap.
should prevent fuel gelling problems during freezing
temperature. Figure 112
Temp. (°C) No. 2 No. 1
-9°C 5+(15°) 100% 0%

Down to -29°C (-20°C) 50% 50%
Below -29°C (-20°C) 0% 100%
Note: See your fuel supplier for local recommendations.

1
WARNING
Stop and cool the engine before refuelling. NO
SMOKING! Failure to obey warnings may cause an
explosion or fire. S0973
Figure 113
WARNING
Always clean up spilled fuel or oil. Keep heat,
flames, sparks or lighted tobacco away from fuel
and oil. Failure to use care around combustibles
can cause explosion or fire which may result in 1
injury or death.
S0974
2. Check the condition of the fill strainer screen (1). Clean

or replace as necessary.
3. Use a clean, approved safety container to add fuel.
Refuel only in an area that has a free movement of air
and no flames or sparks. NO SMOKING!
4. Install and tighten the fuel fill cap.
5. Close the tailgate.
Note: See “Servicing schedule” on page 46 for the correct

service interval when to remove water from or re-
place the fuel filter.
444 Excavator 50 4900041-EN (09-06)

Removing Water From The Pre-Filter
1. Open the tailgate. WARNING

2. Loosen the drain (1) at the bottom of the filter to drain Diesel fuel or hydraulic fluid under pressure
water from the filter. can penetrate skin or eyes, causing serious
injury or death. Fluid leaks under pressure
Figure 114 may not be visible. Use a piece of cardboard
or wood to find leaks. Donot use your bare
hand. Wear safety goggles. If fluid enters
skin or eyes, get immediate medical attention
from a physician familiar with this injury.
Figure 116
S0975 1
WARNING
can cause explosion or fire which can result in S0976
injury or death.
2. Unscrew the filter housing (1).

Pre-Filter Removal
Figure 117
Note: See Service Schedule for the service interval when
to replace the fuel pre-filter. (See “Servicing sched-
ule” on page 46.)
1
Clean the area around the fuel pre-filter housing.
Figure 115
S0978
3. Remove the filter (1) from the filter housing.
1
S0975
1. Loosen the drain (1) at the bottom of the filter housing

and drain the fuel out of the housing.
4900041-EN (09-06) 51 444 Excavator

Pre-Filter Installation Fuel Filter Removal And Installation
1. Clean the filter housing in clean solvent and dry with Note: See Service Schedule for the service interval when
compressed air. to replace the fuel filter. (See “Servicing schedule”
on page 46.)
2. Check the condition of the O-ring (1) [Figure 118] and
replace if required. Figure 120
Figure 118
1
S0982
S0978
3. Install the filter in the housing [Figure 118]. 1. Remove the filter (1).
Figure 119 2. Put clean oil on the seal of the new filter.
3. Install the filter and hand tighten.
1
S0975
4. Close the drain (1) on the bottom of the filter housing.
444 Excavator 52 4900041-EN (09-06)

Draining The Fuel Tank
Figure 121 Figure 123
S0984 S0986
Position the Excavator as shown [Figure 121]. 2. Open the drain (1) and drain the fuel into a container.
Figure 122
WARNING
can cause explosion or fire which can result in
injury or death.
S0985
1. Remove the cap (1) from the drain.
4900041-EN (09-06) 53 444 Excavator

Engine lubrication system
Checking engine oil Replacing Oil And Filter
1. Check the engine oil after every 8-10 hours of Note: See Service Schedule for the service interval for re-
operation and before starting the engine for the work placing the engine oil and filter. (See “Servicing
shift. schedule” on page 46.)
Figure 124
Figure 126
S0987
S0989
2. Open the right side cover and remove the dipstick (1). Rotate the upperstructure so the right side is positioned
3. Keep the oil level between the marks on the dipstick. between the tracks [Figure 126]. Run the engine until it is
at operating temperature. Stop the engine.
Open the right side cover.
Oil Chart Figure 127
Figure 125
1 1
S0990
1. Remove the cap (1).
S0988
Use a good quality motor oil that meets the correct API
Service Classification. See oil chart [Figure 125].
444 Excavator 54 4900041-EN (09-06)

Figure 128 12. Start the engine and let it run for several minutes. Stop
the engine. Check for leaks at the oil filter. Check the
oil level on the dipstick (3).
13. Add oil as needed if it is not at the top mark on the

dipstick.
S0991
1. Install the drain hose (1) on the oil pan.

2. Tighten the hose until oil starts to drain from the oil
pan.
3. Drain the oil in a container.
4. Recycle or dispose of used oil in an environmentally

safe manner.
Figure 129
S0987
5. Remove the oil filter (1) and clean the filter housing
surface.
6. Use a genuine Bobcat replacement oil filter.
7. Put clean engine oil on the filter gasket. Install the filter
and hand tighten.
8. Remove the drain hose and install the cap on the oil
pan after the oil has been completely drained.
9. Remove the fill cap (2).
10. Put oil in the engine. (See Fluid Specifications on

p. 91)
11. Install the fill cap.
4900041-EN (09-06) 55 444 Excavator

Cooling system
Cleaning The Cooling System Figure 131
Check the cooling system every day to prevent over-

heating, loss of performance or engine damage. 1
Open the right side cover.
Use air pressure or water pressure to clean the radiator/oil
cooler. Be careful not to damage the fins when cleaning.
Checking Coolant Level
WARNING
Do not remove radiator cap when the engine is hot.
You can be seriously burned.
S0993
Open the right side cover. 2. The surge tank (1) must be half full when the engine is
cold.
Figure 130
1
IMPORTANT
AVOID ENGINE DAMAGE
Always use the correct ratio of water to antifreeze. Too
much antifreeze reduces cooling system efficiency and
may cause serious premature engine damage. Too little
antifreeze reduces the additives which protect the inter-
nal engine components; reduces the boiling point and
freeze protection of the system. Always add a premixed
solution. Adding full strength concentrated coolant can
cause serious premature engine damage.
S0992
1. Check the coolant level in the surge tank (1).

WARNING
Wear safety glasses to prevent eye injury when any
of the following conditions exist:
• When fluids are under pressure.
• Flying debris or loose material is present.
• Engine is running.
• Tools are being used.
444 Excavator 56 4900041-EN (09-06)

Replacing The Coolant
Note: See Service Schedule for the correct service interval Figure 134
to replace the coolant. (See “Servicing schedule” on
page 46.) 1
Figure 132
View from top S0995
3. Remove the lower radiator hose (1).

S0992 4. Drain the coolant from the engine.
5. After the coolant is removed, install the plug (1) and
1. When the engine is cool, loosen and remove the lower radiator hose (1).
radiatorcap (1).
6. Recycle or dispose of the used coolant in an
Figure 133 environmentally safe manner.
7. Mix the coolant in a separate container.
Note: The Excavator is factory filled with ethylene glycol

coolant.
1 8. Add premixed coolant, 50% water and 50% ethylene
glycol to the reservoir if the coolant level is low.
9. 3,8 L of ethylene glycol mixed with 3,8 L of water is the
correct mixture of coolant to provide a -37°C (-34°F)
freeze protection.
10. Use a refractometer to check the condition of ethylene
glycol in your cooling system.
S0994
11. Fill the radiator with the premixed coolant. Install the
radiator cap.
2. Remove the plug (1) from the back side of the engine
12. Run the engine until it is at operating temperature.
block.
13. Stop the engine.
Note: The plug is located next to the alternator mount
bracket. 14. Check the coolant level (COLD) in the surge tank
when cool.
Drain the coolant from the engine.
15. Add coolant to the tank as needed.
4900041-EN (09-06) 57 444 Excavator

Electrical system
Description
The Excavator has a 12 volt, negative ground WARNING

electricalsystem. The electrical system is protected by
Batteries contain acid which burns eyes and skin
fuses located in the right console and beside the battery
on contact. Wear goggles, protective clothing and
[Figure 135] & [Figure 136]. The fuses will protect the
rubber gloves to keep acid off body. In case of acid
electrical system when there is an electrical overload.The
contact, wash immediately with water. In case of
reason for the overload must be found before starting the
eye contact get prompt medical attention and wash
engine again.
eye with clean, cool water for at least 15 minutes. If
The battery cables must be clean and tight. Check the electrolyte is taken internally drink large quantities
electrolyte level in the battery. Add distilled water as of water or milk! DO NOT induce vomiting. Get
needed. Remove acid or corrosion from the battery and prompt medical attention.
cables with a sodium bicarbonate and water solution.
Put Battery Saver P/N 6664458 or grease on the
batteryterminals and cable ends to prevent corrosion.
Figure 135
S0997
1. To check or replace the fuses in the right console,

remove the three screws (1).
2. Remove the cover (2).

Figure 136
S0870
444 Excavator 58 4900041-EN (09-06)

Fuse And Relay Location
Figure 137
Reference Description Amperage
1 Interior light, radio 5
2 Auxiliary power outle 20
3 Front lights 15
4 Rear work lights 15
5 Horn 10
6 Heater fan motor 15
7 Wiper/Washer 10
8 Control module signal input 5
9 Optional work lights and heating
K1 Front work lights relay
K2 Rear work light relay
K3 Air Conditioner relay
Always replace fuses with the same type and capacity.

S0998
Figure 139
Figure 138
S0870
S0999
1. To check or replace fuses beside the battery, pull up

The location and sizes are shown below and [Figure 137] on and remove the floor mat (1).
& [Figure 138].
Figure 140
S0874
2. Remove the battery compartment cover (1).
4900041-EN (09-06) 59 444 Excavator

Figure 141 Using A Booster Battery (Jump Starting)
If it is necessary to use a booster battery to start the

engine, BE CAREFUL! There must be one person in the
operator's seat and one person to connect and disconnect
the battery cables.
Be sure the key switch is OFF. The booster battery must
be 12 volt.
1
Figure 142
S1000
1. Remove the cover (1) for access to the fuses. 1
Reference Description Amperage

1 (FA) Main fuse 30
2 (FB) Pre-Heat 60
3 (KO1) Pre-Heat relay
S0870
Always replace fuses with the same type and capacity.
2. Pull up on and remove the floor mat (1).
Figure 143
S0874
WARNING
on contact. Wear goggles, protective clothing and
rubber gloves to keep acid off body.
In case of acid contact, wash immediately with
water. In case of eye contact get prompt medical
attention and wash eye with clean, cool water for at
least 15 minutes.
If electrolyte is taken internally drink large quanti-
ties of water or milk! DO NOT induce vomiting. Get
prompt medical attention.
444 Excavator 60 4900041-EN (09-06)

Note: See “Cold temperature starting procedure” on

WARNING page 32.
Keep arcs, sparks, flames and lighted tobacco
away from batteries. When jumping from booster 3. Start the engine. After the engine has started, remove
battery make final connection (negative) at engine the ground (-) cable first (2).
frame. Do not jump start or charge a frozen or
4. Disconnect the cable from the Excavator battery (1).
damaged battery. Warm battery to 16°C (60°F)
before connecting to a charger. Unplug charger
before connecting or disconnecting cables to
battery. Never lean over battery while boosting, WARNING
testing or charging. Battery gas can explode and If jump starting the Excavator from a second
cause serious injury. machine: When jump starting the Excavator from a
battery installed in a second machine. Make sure
that the second machine is NOT running while
Figure 144
using the glow plugs. High voltage spikes from a
running machine can burn out the glow plugs.
WARNING
Damage to the alternator can occur if:
• Engine is operated with battery cables discon-
nected.
1
• Battery cables are connected when using a fast
charger or when welding on the loader. (Remove
both cables from the battery.)
• Extra battery cables (booster cables) are con-
S1006 nected wrong.
1. Connect one end of the first cable to the positive (+)

terminal of the booster battery. Connect the other end
ofthe same cable to the positive (+) terminal (1) of the
Excavator battery.
2. Connect the end of the second cable to the negative
(-) terminal of the booster battery. Connect the other
end ofthe same cable to the Excavator frame (2) (away
from the battery).
4900041-EN (09-06) 61 444 Excavator

Removing And Installing The Battery Figure 147
WARNING
on contact. Wear goggles, protective clothing and 2
rubber gloves to keep acid off body.
In case of acid contact, wash immediately with
water. In case of eye contact get prompt medical 1
attention and wash eye with clean, cool water for at
least 15 minutes.
If electrolyte is taken internally drink large quanti-
ties of water or milk! DO NOT induce vomiting. Get-
S1008
prompt medical attention.
5. Remove the nuts (1) and remove the hold down clamp
Figure 145 (2).
6. Remove the battery.
7. Always clean the terminals and the cable ends, even

when installing a new battery.
8. Install the battery. Install the hold down clamp and

tighten the bolts.
1 9. Connect the battery cables. Connect the negative (-)
cable (1) last to prevent sparks.
S0870
1. Pull up on and remove the floormat (1).

Figure 146
S0874
3. Disconnect the negative (-) cable (1) first.
4. Disconnect the positive (+) cable (2).
444 Excavator 62 4900041-EN (09-06)

Alternator belt Fan / Fuel pump belt
Adjusting Belt Tension Adjusting Belt Tension
Check the alternator belt deflection at the mid span of the Figure 149
belt between the crankshaft pulley and alternator pulley.
Apply approximately 45 mm force to the belt. The belt
should deflect 10 mm.
Figure 148
1
S0982
1. Check the fan/fuel pump belt deflection mid span of

the belt between the crankshaft pulley and the fuel
pump pulley (1).
2. Apply approximately 45 N of force to the belt. The belt

1
Figure 150
S1111
1. Loosen the three alternator bolts (1) [Figure 148] and

rotate the alternator until the belt is correctly
tensioned.
2. Tighten the bolts.

1
S1111
3. Loosen the two bolts (1) on the fuel pump mount.

Rotate the fuel pump until the belt is correctly
tensioned.
4. Tighten the bolts.
4900041-EN (09-06) 63 444 Excavator

Air conditioning compressor belt Hydraulic system
Adjusting Belt Tension Checking And Adding Hydraulic Oil
1
1
S1010 S1012
1. Check the air conditioning compressor belt deflection 1. Check the hydraulic fluid level, it must be visible in the
mid span of the belt between the crankshaft pulley and sight gauge (1).
the compressor pulley (1).
Figure 154
2. Apply approximately 45 mm force to the belt. The belt
Figure 152
1
1
S1013
1 2. Clean the surface around the reservoir (breather) cap

1 S1011 and remove the cap from the reservoir (1).
3. Add the correct oil to the reservoir until it is visible in

3. Loosen the bolts (1) and rotate the compressor until the sight gauge. (See Fluid Specifications on p. 91.)
the belt is correctly tensioned.
4. Check the breather cap and clean as necessary.
4. Tighten the bolts. Replace the cap if damaged.
5. Install the reservoir cap.
6. Close the rear cover.
444 Excavator 64 4900041-EN (09-06)

Replacing The Hydraulic Oil
See Service Schedule for the correct service interval. (See 5. Remove the drain hose and install the cap on the
“Servicing schedule” on page 46.) hydraulic reservoir.
Retract the arm and bucket cylinders, lower the bucket 6. Add fluid to the reservoir. (See Fluid Specifications on
tothe ground. Stop the engine. p. 91.)
Open the rear cover. 7. Run the machine through the hydraulic functions. Stop
the engine. Check the fluid level and add as needed.
Figure 155
WARNING
can cause explosion or fire which can result in
injury or death.
WARNING
Diesel fuel or hydraulic fluid under pressure can
S1014
penetrate skin or eyes, causing serious injury or
death. Fluid leaks under pressure may not be visi-
1. Remove the cap (1) from the hydraulic reservoir drain. ble. Use a piece of cardboard or wood to find leaks.
Do not use your bare hand. Wear safety goggles. If
Figure 156 fluid enters skin or eyes, get immediate medical
attention from a physician familiar with this injury.
S1015
2. Install the drain hose (1) on the hydraulic reservoir.

Tighten the hose until oil starts to drain from the
reservoir.
3. Drain the fluid into a container.

4. Recycle or dispose of the fluid in an environmentally
safe manner.
4900041-EN (09-06) 65 444 Excavator

Hydraulic Filter Removal Hydraulic Filter Installation
See Service Schedule for the correct service interval. (See Clean the filter bowl in clean solvent and dry with com-
“Servicing schedule” on page 46.) pressed air.
Open the rear cover. Figure 160
Figure 157
S1019
S1016
1. Inspect the O-rings (1) on the outside and inside

1. Remove the filter cover (1) and spring. bottom of the filter bowl. Replace the O-rings if
Figure 158 damaged.
Figure 161
1
1
S1017
S1018
2. Remove the filter and filter bowl (1).
Figure 159
2. Install a new filter (1) in the filter bowl.
S1018
3. Remove the filter (1) from the filter bowl.
444 Excavator 66 4900041-EN (09-06)

Figure 162 Diagnostic Couplers
Open the rear cover and right side cover.
1 Figure 165
S1017
3. Install the filter and filter bowl (1).

S1029
Figure 163
Figure 166
S1020
S1030
4. Inspect the O-ring (1). Replace if damaged.

Figure 167
Figure 164
1
1
S1031
S1016
1. The four diagnostic couplers (1) [Figure 165],
[Figure 166] & [Figure 167] are located on the
5. Install the spring and cover (1). hydraulic circuitry.
The couplers can be used to check circuit pressures.
(Refer to the Service Manual.)
4900041-EN (09-06) 67 444 Excavator

Track tension
Rubber Track Clearance Figure 169
Note: The wear of the pins and bushings on the undercar-

riage vary with the working conditions and the differ-
ent types of soil conditions. It is necessary to inspect
track tension and maintain the correct tension. See
“Servicing schedule” on page 46 for the correct serv-
ice interval.
Note: On new Excavators or on Excavators with new rub-

ber tracks installed, check and adjust as needed the
rubber track clearance two to three times on the first 1
day of operation.
S1035
WARNING
Figure 170
AVOID INJURY
Keep fingers and hands out of pinch points when-
checking the track tension. Track Frame
Raise one side of the machine (approximately fourinches)

using the boom and arm.
20 mm
Figure 168
Track
Roller
Track
S1037
3. Measure the track sag at the fourth roller (= middle

of the track). Do not get fingers in pinch points
between the track and track roller. Use a bolt or dowel
of the appropriate size to check the gap between the
contact edge of the roller and the top edge of the track
1 guide lug [Figure 170].
S1034 4. Rubber track clearance 20 mm.
1. Raise the blade fully and install jackstands (1) Steel Track Clearance
[Figure 168] & [Figure 169] under the blade and track
frame. Lower the boom until all machine weight is on Note: The wear of the pins and bushings on the undercar-
the jackstands. riage vary with the working conditions and the differ-
ent types of soil conditions. It is necessary to inspect
2. Stop the engine.
track tension and maintain the correct tension. See
“Servicing schedule” on page 46 for the correct serv-
ice interval.
Note: On new Excavators or on Excavators with new steel

tracks installed, check and adjust as needed the
steel track clearance two to three times on the first
day of operation.
444 Excavator 68 4900041-EN (09-06)

Adjustment
WARNING Figure 172

AVOID INJURY
Keep fingers and hands out of pinch points when 1
checking the track tension.
2
Figure 171
20 mm
S1036
1. Loosen the top bolt (1).
2. Remove the bottom bolt and washer (2).

3. Pivot the cover out of the way.
1
Figure 173
S1038
1. Park the Excavator on a flat and level surface. 1

2. Put a straight edge (1) on the top of the track surface
between the rear sprocket and the top idler wheel.
Measure between the top of the track and the bottom S1039
of the straight edge.

4. Remove the grease fitting adapter (1) from the end of
3. Steel track clearance 20 mm. a grease gun.
Figure 174
S1040
5. Install the track tensioning adapter (1) on the end of a

grease gun.
4900041-EN (09-06) 69 444 Excavator

1
1
S1041 S1044
6. Install the adapter (1) on the track tensioner. 8. To release track tension, loosen the tensioner (1). Do
not remove the tensioner.
Figure 176
Note: Do not remove the tensioner (1) [Figure 178] unless
pressure is released.
After track tension has been released, remove all grease

from the tensioner area.
Repeat the procedure for the other track.
S1042
Figure 177
S1043
7. Add grease to the track tensioner until the track

tension indicator (1) is flush with the cylinder edge (2)
[Figure 176] & [Figure 177].
444 Excavator 70 4900041-EN (09-06)

Track shoes (steel track)
Damaged track shoes have to be replaced immediately.
Replacement
Figure 179
1 2
S1112
• Remove the four hexagon bolts (1) [Figure 179].

• Take the square (2) [Figure 179].
• Remove the track shoe (3) [Figure 179].
• Mount the new track shoe.
Note: Observe the mounting position!
• Fasten the track shoe using new bolts and nuts.

• Tightening torque: 370 +/- 20 Nm
4900041-EN (09-06) 71 444 Excavator

Travel motor
Checking Oil Level Draining The Travel Motor
1 1
S1045 S1046
1. Put the machine on a level surface with the plugs 1. Put the machine on a level surface with the plugs
positioned as shown (1 & 2). positioned as shown (1 & 2).
2. Remove the plug (1). The oil level should beat the 2. Remove both plugs (1 & 2) and drain into a container.
bottom edge of the plug hole. Recycle or dispose of the fluid in an environmentally
safe manner.
3. Remove the plug (2) and add gear lube through the
hole if the oil level is below the hole (1). (See Fluid 3. After all the gear lube is removed, rotate the track
Specifications on p. 91.) motor to the position shown.
4. Install both plugs. 4. Add gear lube to the plug hole (2) until the gear lube
level is at the bottom edge of the plug hole (1). Install
5. Repeat the procedure for the other side. and tighten the plugs.
5. Repeat the procedure for the other side.
444 Excavator 72 4900041-EN (09-06)

Lubrication of the hydraulic excavator
Lubricate the Hydraulic Excavator. See Service Schedule for the best performance of the machine. (See “Servicing
schedule” on page 46.)
Always use a good quality lithium based multipurpose grease when lubricating the machine. Apply the lubricant until
extra grease shows.
WARNING
Replace damaged grease nipples immediately and check if grease passes through!
Overview of lubricating points Figure 182
12
14
13
10
11
18 24
19
16/17
15
7
9
8
21
20
2/5 1/4 3/6 22 23
4900041-EN (09-06) 73 444 Excavator

Lubricate the following locations on the Hydraulic

Excavator EVERY 8-10 HOURS:
3 7
2
S1047 S1049
Ref. Description (# of Fittings) 7. Boom pivot (1).

1. Right blade cylinder rod end (1). Figure 186
2. Right blade cylinder base end (1).
3. Right side blade pivot (1). 8

Figure 184
5 S1050
6 8. Boom swing pivot (2).

Figure 187
S1048
4. Left blade cylinder rod end (1).
5. Left blade cylinder base end (1).

9
6. Left side blade pivot (1).
S1052
9. Boom cylinder rod end (2).
444 Excavator 74 4900041-EN (09-06)

15
10
11
S1053 S1056
10. Boom cylinder base end (1). 15. Lower bucket link pivot (1).
11. Arm cylinder base end (2). Figure 192
Figure 189
17
13 12
17
16
S1057
S1054 16. Bucket cylinder rod end (1).
12. Arm cylinder rod end (1). 17. Bucket link pivot (2).
13. Bucket cylinder base end (1). Figure 193
Figure 190
18
14
19
S1058
S1055 18. Bucket link pivot (1).

14. Arm pivot (1). 19. Bucket pivot (1).
4900041-EN (09-06) 75 444 Excavator

Lubricate the following locations on the Hydraulic

Excavator EVERY 50 HOURS:
21
24
20
S1051
20. Boom swing cylinder base end (1).
21. Boom swing cylinder rod end (1).
24
Figure 195
S1060
24. Door hinges (2).
22 23
S1059
22. Lubrication of the swing toothing (1).
23. Lubrication of the swing bearing (1).
444 Excavator 76 4900041-EN (09-06)

Lubrication of attachments
Swing Bucket Lubrication Clamshell Bucket Lubrication
Always use a good quality Lithium based multipurpose Overview

grease when lubricating the attachment. Apply the Figure 199
lubricant until extra grease shows.
Lubricate the following locations EVERY 8-10 HOURS: N
Figure 197
N
"N
S1114
Always use a good quality Lithium based multipurpose

grease when lubricating the attachment. Apply the
S1061 lubricant until extra grease shows.
1. Bucket pivot (1).
2. Cylinder base end (1). Lubricate the following locations EVERY 8-10 HOURS:
1 1
S1062 S1063
3. Cylinder rod end (1). 1. Bucket pivot points (4).
4900041-EN (09-06) 77 444 Excavator

Figure 201
S1064
Figure 202
2
2
S1065
2. Cylinder link pivots (5) [Figure 201] & [Figure 202].
444 Excavator 78 4900041-EN (09-06)

SPECIFICATIONS
SPECIFICATIONS
Table of contents
Specifications ................................................................................................................................................ 81
Excavator Machine Dimensions............................................................................................................................81
Working diagrams .................................................................................................................................................83
Rated Operating Capacity.....................................................................................................................................86
Performance .........................................................................................................................................................87
Function Time .......................................................................................................................................................87
Weights .................................................................................................................................................................87
Engine...................................................................................................................................................................88
Electrical system ...................................................................................................................................................88
Hydraulic system...................................................................................................................................................88
Hydraulic Cylinders ...............................................................................................................................................89
Slew System .........................................................................................................................................................89
Drive System.........................................................................................................................................................89
Traction .................................................................................................................................................................89
Brakes...................................................................................................................................................................90
Fluid Capacities ....................................................................................................................................................90
Fluid Specifications ...............................................................................................................................................91
Controls.................................................................................................................................................................91
Instrumentation .....................................................................................................................................................91
Serviceability.........................................................................................................................................................91
Environmental .......................................................................................................................................................92
Safety....................................................................................................................................................................92
4900041-EN (09-06) 79 444 Excavator

SPECIFICATIONS
444 Excavator 80 4900041-EN (09-06)

SPECIFICATIONS
Specifications
Excavator Machine Dimensions
Blade height 480 mm
Ground clearance 420 mm
Ground line to top of engine cover 1765 mm
Length of track on ground 2628 mm
Machine centre line to blade 1953 mm
Overall length of track assembly 3345 mm
Overall length in travel position 4680 mm
Blade width 2500 mm
Height 2870 mm
Machine centre line to working equipment centre line, left-hand rotation 995 mm
Machine centre line to working equipment centre line, right-hand rotation 855 mm
Minimum turning radius 2620 mm
Swing clearance, rear (zero tail swing) 1370 mm
Note: All dimensions are shown in millimeters. Respective metric dimensions are given in millimeters
enclosed by parentheses.
Note: Where applicable, specification conform to SAE or ISO standards and are subject to change without
notice.
Figure 203
##
''#
#
&##
!'#
EXCAVATION WITHIN THE ENTIRE WIDTH OF THE MACHINE
S1117
4900041-EN (09-06) 81 444 Excavator

SPECIFICATIONS
Figure 204
'
$
SLEW CIRCLE
S1116
444 Excavator 82 4900041-EN (09-06)

SPECIFICATIONS
Working diagrams
Standard boom and standard dipperstick
Figure 205
&
"
%!"
$!" #%
!
# "
&%

' & % $ # " !
%' "$&
"!!
"
#
%'"
4900041-EN (09-06) 83 444 Excavator

SPECIFICATIONS
Standard boom and long dipperstick (option)
Figure 206
&
%$ "
$##
!
#%
#"#
&%

' & % $ # " !
"$&
!
"$%
"
#
& &
444 Excavator 84 4900041-EN (09-06)

SPECIFICATIONS
Articulated boom (option) and standard dipperstick
Figure 207
'
&
&
"
$'
!
#&
&%

' & % $ # " !
!&%
"#
"
#
##!
& #
4900041-EN (09-06) 85 444 Excavator

SPECIFICATIONS
Rated Operating Capacity

Figure 208
Lift Point Height
Lift Radius
Note: Lift point is bucket hinge pin with standard bucket attached and bucket cylinder fully extended.
Rated lift capacity over blade, blade down.
Along undercarriage, supported by dozer blade
Lift point height Lift at 3200 mm Lift at 4000 mm Lift at 5000 mm Lift at 6000 mm Lift at max (6600
(mm) radius [kg] radius [kg] radius [kg] radius [kg] mm) radius [kg]
3000 4800 3580 3020 2780 2680

1500 7190 5320 3900 3250 2930
Ground 7300 5910 4530 2870 3200
-500 6840 5370 4400 3690 3370
Along undercarriage, moving
3000 3150 3530 2320 2030 1370

1500 4660 3530 2600 1980 1650
Ground 4700 3210 2410 1140 1640
-500 4450 3260 2340 1770 1570
Across undercarriage, supported by dozer blade
3000 2060 3360 2280 1700 1480

1500 3900 2840 2030 1600 1360
Ground 4020 2650 1980 1510 1320
-500 3670 2740 1950 1520 1370
Across undercarriage, moving
3000 - 3280 2260 1690 1460

1500 3830 2070 2070 1620 1330
Ground 3920 2590 1950 1480 1300
-500 3620 2610 1910 1500 1340
444 Excavator 86 4900041-EN (09-06)

SPECIFICATIONS
Performance
Reference Value
Digging force, dipperstick (ISO 6015) N
Digging force, bucket (ISO 6015) N
Drawbar pull (theoretical at 90% efficiency) N
Ground pressure with rubber tracks kPa
Function Time
Reference Value
Boom raise time 5.4 s
Boom lower time 4.7 s
Bucket curl time 2.4 s
Bucket dump time 3.3 s
Dipperstick retract time 4.4 s
Dipperstick extend time 4.3 s
Boom swing left time 8.2 s
Boom swing right time 6.2 s
Blade raise time 4.1 s
Blade lower time 5.2 s
Slew rate 9.0 RPM
Weights
Reference Value
Operating weight with ROPS cab , rubber tracks, standard bucket (SAE J732) 12500 kg
Additional weight for 500 mm steel tracks + 300 kg
Additional weight for 800 mm steel tracks + 910 kg
Additional weight for long dipperstick + 70 kg
Additional weight for articulated boom + 300 kg
Reduction for shipping weight - 267 kg
4900041-EN (09-06) 87 444 Excavator

SPECIFICATIONS
Engine
Reference Value
Make/model Deutz/BF-4M-2012/COM /EPA 2 (turbo)
Fuel Diesel
Cooling Liquid
Maximum power at 2100 RPM (DIN 70020) 69.0 kW
Maximum governed speed 2100 RPM
Maximum torque at 1400 - 1600 RPM (SAE Net) 385 Nm
Number of cylinders 4
Displacement 4038 cm³
Bore 94 mm
Stroke 115 mm
Lubrication Pressure system with filter
Crankcase ventilation Closed breathing
Air filter Dry replaceable cartridge with safety element
Ignition Diesel-compression
Starting aid Intake air heater
Electrical system
Reference Value
Alternator 12 V - 55 A - open frame with internal regulator
Battery 12 V - 600 cold cranking A at -18°C – 105 min reserve capacity
Starter 12 V - gear reduction type - 3.1 kW
Hydraulic system
Reference Value
Pump type One engine-driven piston pump and two engine-driven gear
pumps
Piston pump capacity 158 l/min (350 bar max)
Gear pump capacity 41.4 l/min + 36 l/min (230 bar max)
System relief pressure for implement and travel circuits 350 Bar
System relief pressure for slew, blade and offset circuits 230 Bar
System relief pressure for auxiliary circuits 280 Bar
Control valve Nine-spool
Hydraulic filter Full-flow replaceable - 3 µm synthetic media element
Fluid lines SAE standard tubelines, hoses, and fittings
Auxiliary flow 100 l/min
Hydraulic oil cooler Thermostatically controlled. Range 50-45°C
444 Excavator 88 4900041-EN (09-06)

SPECIFICATIONS
Hydraulic Cylinders
Reference Value
Boom cylinder Cushion up and down
Boom cylinder bore 95 mm
Boom cylinder rod 60 mm
Boom cylinder stroke 800 mm
Dipperstick cylinder Cushion retract and extend
Dipperstick cylinder bore 115.0 mm
Dipperstick cylinder rod 70.0 mm
Dipperstick cylinder stroke 850.0 mm
Bucket cylinder Bucket curl
Bucket cylinder bore 105.0 mm
Bucket cylinder rod 70.0 mm
Bucket cylinder stroke 765.0 mm
Boom swing cylinder Cushion left and right
Boom swing cylinder bore 115.0 mm
Boom swing cylinder rod 70.0 mm
Boom swing cylinder stroke 670.0 mm
Blade cylinder No cushion
Blade cylinder bore 110.0 mm
Blade cylinder rod 60.0 mm
Blade cylinder stroke 235.0 mm
Slew System
Reference Value
Boom swing, left 63°
Boom swing, right 65°
Slew circle Single row shear-type ball bearings with internal gear
Slew angle 360°
Slew speed 0 - 9 rpm
Slew drive Axial piston motor with spring applied disk brake
Drive System
Reference Value
Travel motor Each track is driven by a hydrostatic axial piston motor
Drive reduction Two-stage planetary gear reduction
Traction
Reference Value
Track width 500 mm (steel & rubber) / 800 mm (optional steel track)
Track adjusters Grease type with shock absorbing recoil springs
Track type Half-pitch, rubber
Track type Steel, triple grouser shoe
4900041-EN (09-06) 89 444 Excavator

SPECIFICATIONS
Reference Value
Travel speed, low range 2.7 km/h
Travel speed, high range 5.4 km/h
Undercarriage Crawler-type tractor design with reinforced box-section track

roller frame and sealed track rollers
Number of track rollers per side 1 top, 7 bottom
Gradeability 30°
Brakes
Reference Value
Parking brake Spring applied, hydraulically released, multi-disk brake
Slew brake Spring applied, hydraulically released, multi-disk brake
Travel brake Spring applied, hydraulically released, multi-disk brake
Fluid Capacities
Reference Value
Cooling system 12.0 l
Engine lubrication plus oil filter 10.0 l
Fuel reservoir 190.0 l
Hydraulic reservoir 140.0 l
Hydraulic system with bucket and dipper cylinder retracted, bucket on the ground, and 140.0 l
blade down
Travel motor (each) 1.8 l
444 Excavator 90 4900041-EN (09-06)

SPECIFICATIONS
Fluid Specifications
Engine coolant Polypropylene glycol/water mix (53% - 47%) with freeze protection to -37°C
Engine oil Oil must meet API Service Classification of CD, CE, CF4, CG4, or better. Recommended SAE viscosity
number for anticipated temperature range.
* Can by used only when available with appropriate diesel rating.

For synthetic oil use the recommendation from the oil manufacturer.
Hydraulic fluid Bobcat Fluid (P/N 6563328). If fluid is not available use 10W-30/10W Class SE motor oil for temperatures
above -18°C or 5W-30 Class SE motor oil for temperatures below -18°C.
Controls
Engine Hand lever on right-hand side
Starting Push button
Blade Right hand lever
Boom swing Right foot pedal
Hydraulics Two joysticks control boom, bucket, dipperstick and upper

structure slew
Auxiliary hydraulics Electric switch in right joystick
Upper structure slew lock for holding and service Automatically applied slew brake integrated in slew motor
Steering Direction and speed controlled by two pilot-operated hand levers

or foot pedals
Instrumentation Serviceability
• Air filter restriction indicator Access is available to the following through the reartailgate
• Air intake heater indicator or side access hood:
• Boom cylinder load gauge • Air cleaner with indicator
• Charging system indicator • Battery
• Engine oil pressure indicator • Cooling system (engine oil and hydraulic oil coolers)for
cleaning
• Engine temperature gauge
• Control valve
• Fuel gauge
• Engine oil and fuel filters
• Hour meter
• Engine oil level
• Hydraulic fluid level indicator
• Fuel filler
• Hydraulic system indicator
• Hydraulic valve bank
• Starter
• Sight gauges for hydraulic level
Tailgate and access cover have locks for vandal-proofing.
Easy access to all grease points. Central grease point for
swing bearing, swing pinion, and offset cylinder.
4900041-EN (09-06) 91 444 Excavator

SPECIFICATIONS
Environmental
Noise level LpA (EU Directive 2000/14/EC) 79 dB(A)
Noise level LWA (EU Directive 2000/14/EC) 101 dB(A)
Whole body vibration (ISO 2631-1) 0.5 m/s²
Hand/arm vibration (ISO 5349-1) 2.5 m/s²
Safety
Retractable seat belt, standard Should always be worn when operating the excavator
Operator cab, standard Closed cab with heater. Meets ISO 12117 for Tip Over Protective
Structure (TOPS). An optional top Falling Object Protective
Structure (FOPS) meeting ISO 10262 Level 2* is available.
Grab handles, standard Should always be used when entering/exiting excavator.
Front working lights, standard Use for indoor and low light operation.
Control lockout, standard Operator console locks out work group and travel functions when
in the upright position.
Upper carriage slew lock, standard An automatic disk brake locks the upper structure to the
undercarriage for transport.
Travel motion alarm, optional For use when required
Operator's handbook, standard Weather-resistant operator handbook attached to the inside of

the cab, providing operational instructions and warnings decals
with pictorials and international symbols.
* Level II - Acceptance is intended for protection from falling trees or rocks for machines involved in site clearing,
overhead demolition, or forestry.
444 Excavator 92 4900041-EN (09-06)

WARRANTY
BOBCAT EXCAVATORS
INGERSOLL RAND INTERNATIONAL warrants to its authorised dealers who in turn warrant to the end-user/owner,
that each new Bobcat excavator will be free from proven defects in material and workmanship for twelve months from
the date of delivery to the end-user/owner or 2000 hours of machine usage, whichever occurs first, with the exception
of tracks which are covered for the same initial period on a pro-rated basis based on the remaining depth of the track
at the time any defect is discovered,
During the warranty period, the authorised selling Bobcat dealer shall repair or replace, at INGERSOLL RAND
INTERNATIONAL's option, without charge for parts, labour and travel time of mechanics, any part of the Bobcat
product which fails because of defects in material and workmanship. The end-user/owner shall provide the
authorised dealer with prompt written notice of the defect and allow reasonable time for replacement or repair.
INGERSOLL RAND INTERNATIONAL may, at its option, request failed parts to be returned to the factory.
Transportation of the Bobcat product to the authorised Bobcat Excavator dealer for warranty work is the
responsibility of the end-user/owner.
The warranty does not cover replacement of scheduled service items such as oil, filters, tune-up parts, and other
high-wear items. The warranty does not cover damages resulting from abuse, accidents, alterations, use of the
Bobcat product with any bucket or attachment not approved by INGERSOLL RAND INTERNATIONAL, air flow
obstructions, or failure to maintain or use the Bobcat product according to the instructions applicable to it.
INGERSOLL RAND INTERNATIONAL EXCLUDES OTHER CONDITIONS, WARRANTIES OR REPRESENTATIONS OF
ALL KINDS, EXPRESSED OR IMPLIED, STATUTORY OR OTHERWISE (EXCEPT THAT OF TITLE) INCLUDING ALL
IMPLIED WARRANTIES AND CONDITIONS RELATING TO MERCHANTABILITY, SATISFACTORY QUALITY AND
FITNESS FOR A PARTICULAR PURPOSE.
CORRECTIONS BY INGERSOLL RAND INTERNATIONAL OF NONCONFORMITIES WHETHER PATENT OR LATENT,
IN THE MANNER AND FOR THE TIME PERIOD PROVIDED ABOVE, SHALL CONSTITUTE FULFILMENT OF ALL
LIABILITIES OF INGERSOLL RAND INTERNATIONAL FOR SUCH NONCONFORMITIES, WHETHER BASED ON
CONTRACT, WARRANTY, TORT, NEGLIGENCE, INDEMNITY, STRICT LIABILITY OR OTHERWISE WITH RESPECT TO
OR ARISING OUT OF SUCH PRODUCT.
THE REMEDIES OF THE END-USER/OWNER SET FORTH UNDER THE PROVISIONS OF THE WARRANTY OUTLINED
ABOVE ARE EXCLUSIVE AND THE TOTAL LIABILITY OF INGERSOLL RAND INTERNATIONAL INCLUDING ANY
HOLDING, SUBSIDIARY, ASSOCIATED OR AFFILIATED COMPANY OR DISTRIBUTOR WITH RESPECT TO THIS
SALE OR THE PRODUCT AND SERVICE FURNISHED HEREUNDER IN CONNECTION WITH THE PERFORMANCE OR
BREACH THEREOF, OR FROM DELIVERY, INSTALLATION, REPAIR OR TECHNICAL DIRECTION COVERED BY OR
FURNISHED UNDER THIS SALE, WHETHER BASED ON CONTRACT, WARRANTY, TORT, NEGLIGENCE, INDEMNITY,
STRICT LIABILITY OR OTHERWISE SHALL NOT EXCEED THE PURCHASE PRICE OF THE PRODUCT UPON WHICH
SUCH LIABILITY IS BASED.
INGERSOLL RAND INTERNATIONAL INCLUDING ANY HOLDING, SUBSIDIARY, ASSOCIATED OR AFFILIATED
COMPANY AND DISTRIBUTOR SHALL IN NO EVENT BE LIABLE TO THE END-USER/OWNER, ANY SUCCESSORS IN
INTEREST OR ANY BENEFICIARY OR ASSIGNEE RELATING TO THIS SALE FOR ANY CONSEQUENTIAL,
INCIDENTAL, INDIRECT, SPECIAL OR PUNITIVE DAMAGES ARISING OUT OF THIS SALE OR BY ANY BREACH
THEREOF, OR ANY DEFECT IN, OR FAILURE OF, OR MALFUNCTION OF THE PRODUCT UNDER THIS SALE,
WHETHER BASED UPON LOSS OF USE, LOST PROFITS OR REVENUE, INTEREST, LOST GOODWILL, WORK
STOPPAGE, IMPAIRMENT OF OTHER GOODS, LOSS BY REASON OF SHUTDOWN OR NON-OPERATION,
INCREASED EXPENSES OF OPERATION OR CLAIMS OF USER OR CUSTOMERS OF THE USER FOR SERVICE
INTERRUPTION WHETHER OR NOT SUCH LOSS OR DAMAGE IS BASED ON CONTRACT, WARRANTY, TORT,
NEGLIGENCE, INDEMNITY, STRICT LIABILITY OR OTHERWISE.
4700003-EN (07-06) Printed in Europe

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EN

4900041-EN (09-06) © Bobcat Europe 2005

Never operate without instructions.

Wrong Correct Wrong Wrong

Wrong Correct Correct Correct

15˚ max 15˚ max 25˚ max

Correct Correct SAFETY EQUIPMENT

SAFETY INSTRUCTIONS ................................................................................................................................................1

OPERATING INSTRUCTIONS .........................................................................................................................................5

PREVENTIVE MAINTENANCE ......................................................................................................................................43

Bobcat excavator serial number

Engine serial number

Your Bobcat excavator dealer

4900041-EN (09-06) i 444 Excavator

444 Excavator ii 4900041-EN (09-06)

Bobcat Company is ISO 9001:2000 certified ................................................................................................................... iv

Items needed for regular maintenance ............................................................................................................................ iv

Serial number locations.....................................................................................................................................................v

Bobcat excavator identification ........................................................................................................................................ vi

Features and accessories ............................................................................................................................................... vii

4900041-EN (09-06) iii 444 Excavator

Bobcat Company is ISO 9001:2000 certified

Items needed for regular maintenance

444 Excavator iv 4900041-EN (09-06)

Serial number locations

Bobcat excavator serial number Engine Serial Number

The Delivery Report items must be explained to the owner/

1.The four digit Model/Engine Combination Module

2.The five digit Production Sequence Number identifies

4900041-EN (09-06) v 444 Excavator

Bobcat excavator identification

444 Excavator vi 4900041-EN (09-06)

Features and accessories

Standard items Options and accessories

These and other attachments are approved for use on this

4900041-EN (09-06) vii 444 Excavator

444 Excavator viii 4900041-EN (09-06)

Safe operation needs a qualified operator ........................................................................................................................4

Fire prevention ..................................................................................................................................................................4

4900041-EN (09-06) 1 444 Excavator

444 Excavator 2 4900041-EN (09-06)

Carefully follow the operating and maintenance instruc-

4900041-EN (09-06) 3 444 Excavator

Safe operation needs a qualified operator Fire prevention

444 Excavator 4 4900041-EN (09-06)

Controls and instrumentation ............................................................................................................................................8

Operator cab ...................................................................................................................................................................15

Changing work attachments............................................................................................................................................21

Daily inspection ...............................................................................................................................................................26

Pre-starting procedure ....................................................................................................................................................28

Starting the engine ..........................................................................................................................................................31

4900041-EN (09-06) 5 444 Excavator

Operating procedure ...................................................................................................................................................... 33

Recovery and transport of the machine ......................................................................................................................... 41

444 Excavator 6 4900041-EN (09-06)

Battery charge indicator Travel speed, fast

Pre-heating Travel speed, slow

Engine oil pressure Dozer blade float position

Coolant temperature Hydraulic rock breaker

Changeover “ISO – SAE” con-