D7R ®

Series 2
Track-Type Tractor

Engine
Engine Model Cat® 3176C
Gross Power 192 kW 258 hp
Flywheel Power 179 kW 240 hp
Weights – Standard
Operating Weight 25 304 kg 55,786 lb
Shipping Weight 20 630 kg 45,479 lb
D7R Series 2 Track-Type Tractor
The D7R Series 2 power, response, and control deliver more production at lower cost-per-yard.

Engine Advanced Modular Cooling System Drive Train

(AMOCS)
The rugged, easy-to-service 3176C Matched with the electronic engine
engine features the electronically AMOCS utilizes an exclusive two pass control, the Caterpillar® electronic
controlled, direct injection fuel system cooling system and increased cooling transmission control allows the power
for improved fuel efficiency and reduced surface area to provide significantly train to work more intelligently. pg. 6
emissions. pg. 4 more cooling efficiency than
conventional systems. pg. 5

Undercarriage Integrated Electronic Solutions Serviceability

With the elevated sprocket design, the Caterpillar offers technology options Major components have a modular design
final drives are located above the work such as Product Link and AccuGrade ® for excellent serviceability and fast
area, isolating them from ground induced Laser Grade Control System that provide in-field component exchange. pg. 15
impacts. The different undercarriage greater accuracy, higher productivity,
configurations allows you to match the lower operating costs and more
machine to the application. pg. 13 profitability. pg. 14

Engineered for demanding work.

The D7R Series 2 is designed to be
productive in a variety of applications.
It keeps material moving with the reliability
and low operating costs you expect from
Cat machines.

2
Operator’s Station Work Tools Structure
The comfortable operator’s station Caterpillar offers a variety of work tools Mainframe is heavy, strong and durable.
provides excellent viewing area to to equip your D7R Series 2 with the Full box sections, steel castings and
the blade and rear of the machine versatility needed to accomplish the job continuous rolled rails provide durable
for maximum operator productivity. quickly and efficiently. pg. 10 support to the undercarriage, elevated
Controls are low-effort and easy final drives and other integral frame
to reach. pg. 8 components. pg. 12

Total Customer Support

Your Cat Dealer offers a wide range
of services that can be set up under a
customer support agreement when you
purchase your equipment. The dealer
will help you choose a plan that can
cover everything from machine and
attachment selection to replacement,
helping you get the best return on
your investment. pg. 16

3
Engine
The 3176C engine, matched with the torque divider and field proven power shift
transmission, provides years of dependable service.

Cylinder Block. Engine durability begins

with its foundation - the engine block.
The serpentine design of the 3176C
block provides maximum strength in a
reduced weight design. It is a single-
piece, deep-skirted design that provides
a solid base for the durability you
require in today’s D7R Series 2.
Cylinder Head. The 3176C cylinder head
is designed for maximum breathing,
which helps ensure excellent fuel
efficiency. This one-piece, stress-
relieved, gray-iron casting has four
valves per cylinder. Robust intake and
exhaust valves aid airflow and provide
excellent reliability and fuel efficiency.
Pistons. The two-piece, articulated
piston design consists of a forged-steel
crown for maximum strength and a
cast aluminum skirt to reduce weight.
A large piston pin holds the crown,
skirt and connecting rod together.
The aluminum skirt runs cooler than
conventional pistons, allowing a closer
fit to the cylinder liner and providing
longer life. The steel crown handles
the higher internal pressures of
today’s engines.
Crankshaft. The crankshaft is a steel
forging with induction-hardened
3176C Engine Features: Electronic Unit Injector (EUI). The
journals and fillets. The wide center
mechanically-actuated, electronically
• Higher efficiency turbocharger for and end main journals and bearings are
controlled unit injector combines an
improved airflow. designed to maintain maximum oil film
electronic actuator, pump assembly and
thickness for excellent lubrication and
• Fuel/Air Ratio Control to minimize nozzle into a single, compact unit for
for cooling the bearings. The result is
acceleration smoke. reliability and durability. The 3176C
long life-to-overhaul.
fuel system has been tested in thousands
of engines in some of the most demanding
applications and environments around
the world.

4
Advanced Modular Cooling System (AMOCS)
AMOCS utilizes an exclusive two pass cooling system and increased cooling surface area
to provide significantly more cooling efficiency than conventional systems.

Two Pass Cooling System. Using a two

pass system, the AMOCS radiator
provides a more efficient heat exchange.
The coolant is routed from a sectioned
bottom tank up the front side, over the
top of the core and down the engine
side of the core to the bottom tank.
This flow pattern allows the coolant
to pass through the radiator twice for
better cooling.
Modular Design. The cooling elements
are individual core modules that are
connected to a sectioned bottom tank.
There is no top tank to remove.
• Standard 9 steel fins per 2.54 cm
(1 in), or an optional 6 steel fins
per 2.54 cm (1 in).
• Brass tube construction within each
core for improved reliability.
Separate Circuit Aftercooling.
The D7R Series 2 features a Separate
Circuit Aftercooler. Two of the AMOCS
cores are dedicated to the aftercooler
coolant circuit to achieve cooler inlet
air temperatures, which increases
performance and improves engine
emissions. A separate water pump is
used to circulate the aftercooler coolant.
Serviceability. The modular core design
permits removal of a single core without
removing the entire radiator, which
reduces repair costs and downtime.
AMOCS also eliminates the top tank,
side channels and one sealing surface, Protection From Leaks. To reduce the Sand Blast Grid. In an application where
making it more reliable and easier to potential for coolant leaks, brass tubes airborne debris is prevalent, radiator
service. It also features a site gauge are welded to a large, thick header, core protection is a concern. To extend
for quick service checks. improving strength of the tube-to-header radiator life in harsh applications, a
joint. In conditions where abrasive sand blast grid is available as an option
materials can be airborne, the attachment to deflect the damaging debris the
sand blast grid should be used to prevent engine fan propels at the radiator.
core damage.

5
Drive Train
Getting maximum power to the ground with the efficiency and reliability you expect from
Cat machines.

Operating Efficiency And Driveline

Reliability. The D7R Series 2 torque
divider attains the best combination
of operating efficiency and driveline
reliability. It reduces dozing shock
loads to the transmission and final
drives by acting as a hydrodynamic
component between the engine and
transmission.

Transmission. The D7R Series 2

planetary power shift transmission
features three speeds forward and
three speeds reverse and utilizes large
diameter, high-capacity, oil cooled
clutches. To maximize the life of the
transmission the planetary design
distributes loads and stresses over
multiple gears.
• Controlled throttle shifting regulates
engine speed during high energy
directional shifts for smoother, more
Torque Divider. An improved single- Key Benefits Of Torque Divider. comfortable operation and longer
stage torque converter sends 70% of The D7R Series 2 torque divider provides: component life.
engine torque through a converter and • Electronic modulations system
• High reliability.
30% through a direct drive shaft for permits fast speed and direction
greater driveline efficiency and higher • Proven component design. changes.
torque multiplication. The torque divider
• Low dynamic torque. • Modular transmission and bevel gear
provides improved efficiency and
broader range of performance in second • Optimum combination of operator slide into rear case for servicing ease,
gear dozing and scraper pushloading. efficiency and driveline reliability. even with ripper installed.

• Components are designed to absorb • Oil-to-water cooler for maximum

full engine power. cooling capacity.

• High torque multiplication to get • Forced oil flow lubricates and cools
heavy loads moving. clutch packs to provide maximum
clutch life.

6
 Power Shift with
lb x Nx Differential Steer
1000 10 000
60
120
50
100
40
Drawbar Pull

80 1st Gear
30
60
20
40
2nd Gear
20 10
3rd Gear
0 0
0 2 4 6 8 10 km/h

0 1 2 3 4 5 6 7 mph
Speed

Drawbar Pull vs Ground Speed.

As loads on the tractor increase, the
D7R Series 2 offers unmatched lugging
capability and smooth shifting as the
need occurs to change gears under
varying loads. The 3-speed forward,
3-speed reverse transmission offers
excellent runout speeds.
Differential Steering. A D7R Series 2
equipped with differential steering
maintains power to both tracks while
turning. The tractor turns when one track
speeds up and the other slows down an
equal amount. The operator can steer and
control the transmission simultaneously,
which can reduce cycle times in some
Auto-Shift/Auto-Kickdown. Auto-shift
applications. The differential steering
allows the operator to pre-select a forward
tiller bar has touch shift buttons for
and reverse gear for easy, efficient
upshifts and downshifts. The tiller bar
directional changes. Auto-shift settings
itself is easily rotated forward or reverse
include first forward to second reverse,
to change the respective tractor direction.
second forward to second reverse
The tiller bar is moved forward to steer
and second forward to first reverse.
the tractor to the left and pulled back
Auto-kickdown allows the transmission
to go right. Low tiller bar efforts assure
to automatically downshift when
operator comfort during long shifts.
significant load increases are detected.
Large blade loads can be maneuvered
around buildings, bridge abutments, trees
or other obstacles. Steering modulation
is also optimized for precise control in
these applications. Greater load capacity, Elevated Final Drive. Isolates final
power and speed control are possible drives from ground and work tool
in soft underfoot conditions on steep induced impact loads for extended
slopes because both tracks are powered power train life.
during turns.

7
Operator’s Station
The D7R Series 2 operator station is designed for comfort and ease of operation.

8
Cab. Isolation-mounted, pressurized cab • Adjustable armrests.
reduces noise and vibration for operator
• Padded consoles for side slope
comfort.
operations.
Clear Working View. Operator has an
• Sliding Windows.
excellent view to the blade and rear of
the machine for maximum operator Dash. An informed operator is a
productivity. The tapered hood gives productive operator. With a newly
the operator a clear line of sight to the designed dash, the operator will be kept
front work area. The low rear window informed of the machine status and
lets the operator see the ripper tip. system information. The analog gauges
The large single-pane door windows are easy to read and a warning lamp
allow the operator to see both ends keeps the operator aware of any action
of the blade. that is needed. A new feature for the
D7R Series 2 is the addition of the
Interior Amenities. The D7R Series 2 Work Tool Lockout Rocker Switch.
foot pads on the dash. These foot pads
operator’s station interior storage and When engaged, the lockout prevents
help the operator stay confident and
amenities include: inadvertent operation of the hydraulic
comfortable during slope applications.
• Intermittent windshield wipers work tool attachments.
Electronic Steering And Transmission
(optional). Throttle Rocker Switch. A rocker
Control. The D7R Series 2 has standard
• Storage area behind seat for first Differential Steering, which gives the switch control sets the high or low idle
aid kit. D7R Series 2 the maneuverability and with a touch of the finger. A decelerator
control that operators need to match to pedal gives the operator full control of
• Lunchbox tie-downs. engine speed when the rocker switch is
the applications. The touch buttons on the
• Cup holder and ashtray. steering control shifts the electronically in the high idle position.
controlled powershift transmission.
• Standard 24 to 12 volt converter. Caterpillar Comfort Series Seat.
Work Tool Controls. Low effort pilot The D7R Series 2 features a new
• Two power point plug-in receptacles Cat Comfort Series Seat for increased
operated hydraulics for the work tools
behind seat. operator comfort and reduced operator
make the D7R Series 2 easy to operate
• Perimeter-mounted headliner with and provides sure, precise blade control fatigue. The seat is fully adjustable
integral pre-wired radio mount, with less operator fatigue. Lower lever and designed for comfort and support.
speakers and antenna. efforts and ergonomically shaped blade The seat and back cushions are thicker
and ripper control handles provide and designed to reduce pressure on the
• Steep slope foot pads. lower back and thighs while allowing
increased operator comfort during
• Storage compartment for personal long shifts. unrestricted arm and leg movement.
items.

9
Work Tools
Caterpillar D7R Series 2 work tools are designed to provide flexibility to match the machine
to the job.

Semi-Universal Blade. Built for tough

applications where penetration is more
important than capacity. The SU blade
is more aggressive in penetrating and
loading material than the U blade. The
blade wings are designed for superior
load retention and penetration. It can
be configured with a push plate for
pushloading scrapers.
Straight Blade. The S blade provides
excellent versatility. Since it is physically
smaller than the SU or U blade its easier
to maneuver and can handle a wide
range of materials. The S blade is
more aggressive when penetrating
hard materials.
Angle Blade. The angle blade is mounted
to a C-frame, using a pinned connection
which permits blade angling and tilting,
left or right.
Cutting Edges. In tough applications,
high-tensile strength Cat DH-2 steel
cutting edges resist torsional bending
and distortion. End bits are DH-3 to
provide maximum service life in
tough materials.
Load Sensing Hydraulics.
The D7R Series 2 features field-proven
load-sensing pilot controlled hydraulics,
Dozers. With moldboard construction Universal Blade. The U blade is efficient which respond to operating requirements
and hardened bolt-on cutting edges, at moving big loads over long distances. by automatically and continually
Caterpillar bulldozer blades load easily It’s ideal for light or relatively easily adjusting attachment hydraulic power.
and are durable. In tough applications, dozed material.
Multi-Shank Ripper. The multi-shank
Caterpillar blades resist torsional
parallelogram ripper is adjustable and
bending and distortion thanks to
lets you choose one, two or three shanks
their high-tensile strength.
depending on job conditions.

10
Winches.
• Variable line pull and line speed.
• Hydraulically driven winch for
precise load control during real in
or real out.
• Inching control through modulation
of variable displacement pump
and motor.
• Dual braking system provides
a static brake with a sprag clutch
to eliminate fall back and a brake
valve for dynamic braking.
• Single lever joystick control for ease
of operation and reliable performance
with no cable nor linkage adjustments. Drawbar. D7R Series 2 can be equipped Forestry Sweeps. In applications where
with a drawbar for applications such as: tree limbs can damage a machine,
• Three roller fairlead is standard.
optional forestry sweeps are available
• Disks.
Rear Counterweights. Rear to protect your investment. Sweeps help
counterweights may be needed • Compactors. shield intake air cleaners, exhaust stack,
to maximize balance for backing cab windows, and lights from damage.
• Chopper wheels.
up steep slopes or increasing
performance in heavy dozing • Pull-type scrapers.
applications. Recommended
• Retrieving other equipment.
if other rear attachment is
not specified.

11
Structure
Engineered and built to give solid support in the most demanding work.

eliminates the need for diagonal bracing

because it transfers side loads to the
mainframe instead of the dozer pusharms.
Pivot Shaft. The pivot shaft runs
through the mainframe and connects
to the roller frames for independent
oscillation. The full-length pivot shaft
distributes impact loads throughout the
case, reducing bending stresses on the
case. This design eliminates alignment
problems and the need for diagonal
braces on the roller frames. Caterpillar
track-type tractors set the industry
standard for mainframe durability.

Equalizer Bar. The pinned equalizer

bar gives the roller frames the ability
Frame And Castings. The D7R Series 2 Tag-Link. The tag-link blade mounting to oscillate up or down to better match
frame is built to absorb high impact brings the blade closer to the machine ground contours while providing
shock loads and twisting forces. for excellent maneuverability, machine maximum traction and operator
Castings provide added strength to the balance and blade penetration. The comfort. Equalizer bar end pins are
main case and equalizer bar saddle. tag-link design provides solid lateral oil filled with limited slip seals for
stability and better cylinder positions longer life and reduced repair costs.
for constant pryout independent of
blade height. The tag-link also

12
Undercarriage
The Caterpillar elevated sprocket undercarriage arrangements allow optimized balance for
the best possible performance in each application.

Undercarriage Arrangements.
Standard arrangement
Standard Arrangement
• A general-purpose undercarriage
that performs well in many
applications with firm underfoot
conditions.
XR arrangement
• More track to the rear positions
the tractor’s weight forward, which
increases traction and stability for
drawbar, skidding, and ripping
applications.
LGP arrangement XR Arrangement
• Specially designed to work in soft
and spongy conditions. Wide track
shoes, long track frames, and a wider
gauge increases track contact area
and reduces ground pressure for
improved stability providing excellent
floatation in swampy conditions.
Roller Frames. Roller Frames are
tubular, to resist bending and twisting,
with added reinforcement where
operating loads are the highest. LGP Arrangement
• Roller frames attach to tractor by a
pivot shaft and pinned equalizer bar.
• Large pivot shaft bushings operate
in an oil reservoir.
• Resilient pads restrain equalizer bar
oscillation.
• The recoil system is sealed and
lubricated.

13
Integrated Electronic Solutions
Caterpillar technology offers customers new opportunities for efficiency and profitability.

Product Link. The optional Product Link

system is factory installed or easily
retrofitted wireless system that simplifies
equipment fleet tracking. Using satellite
or cellular technology, the system
automatically reports key machine
parameters such as location, machine
hours, active and logged service codes
and security alarms. Depending on the
Product Link version, it can connect
with other on-board systems, issue
AccuGrade ® Grade Control System. e-mail or pager alerts and provide fuel
The AccuGrade System allows consumption data.
operators to grade and fill with
increased accuracy without the use of
traditional stakes or grade checkers.
Using advanced laser or Global
Positioning System (GPS) technology,
machine-mounted components and an
off-board transmitter, the AccuGrade
System significantly improves the
productivity and accuracy of grading
equipment by as much as 50 percent
over conventional methods.
Cat Machine Security System (MSS).
MSS uses electronically coded keys
selected by the customer to limit usage
AccuGrade System Cost Savings.
by individuals or time parameters.
Grade is reached in fewer passes so
MSS deters theft, vandalism and
owning and operating costs are reduced.
unauthorized usage. Each machine
Fewer grade stakes are required and
system can store up to 255 keys and
re-staking is virtually eliminated realizing
each key can be used on as many
a 90 percent cost savings. Higher accuracy
machines as desired. MSS can be
means savings in imported material.
controlled by a customer’s Personal
Productivity is increased up to 50 percent
Data Assistant. Field installation
and can be maintained all day so more
is available.
jobs can be scheduled with more
scheduling flexibility.

14
Serviceability
Simplified service means more productive uptime.

Built-In Serviceability. Less service

time means more working time. Major
components are made as modules and
most can be removed without disturbing
or removing others.
Cooling System. AMOCS individual
cooling elements allow radiator
servicing without major component
removal, saving considerable time
and cost.
Caterpillar Monitoring System.
The D7R Series 2 features a more
flexible monitoring system that is
easily upgraded by flashing software
rather than replacing the module.
As technology changes and new
electronics and software become
available, this upgraded monitoring
system will allow the machine to be
easily updated and take advantage
of improvements. The Caterpillar
Monitoring System is designed to:
• Allow easy upgrades.
• Reduce the parts cost.
• Reduce downtime.
• Match software to unique
application needs.
Diagnostic Connector. Diagnostic
Pressure Test Points. Pressure test Fast Fuel System. The D7R Series 2
connector allows Caterpillar dealers to
points for power train and hydraulic includes an optional fast fuel fill
quickly troubleshoot the D7R Series 2
systems are provided. attachment with positive fuel shut-off
or access stored data with the use of
to prevent fuel spillage.
Electronic Technician (ET) or ECAP. Ecology Drains. Ecology drains provide
an environmentally safer method to
drain fluids. They are included on the
radiator, hydraulic tank and major
power train components.

15
Total Customer Support
Unmatched in the industry!

Selection. Make detailed comparisons

of the machines you are considering
before you buy. How long do components
last? What is the cost of preventive
maintenance? What is the true cost of
lost production? Your Cat Dealer can
give you precise answers to these
questions.
Purchase. Consider the financing
options available as well as day-to-day
operating costs. This is also the time
to look at dealer services that can be
included in the cost of the machine to
yield lower equipment owning and
operating costs over the long run.
Operation. Improving operating
techniques can boost your profits.
Your Cat Dealer has training videotapes,
literature and other ideas to help you
increase productivity.
Replacement. Repair, rebuild or replace?
Your Cat Dealer can help you evaluate
the cost involved so you can make the
right choice.
Maintenance. More and more
equipment buyers are planning for
effective maintenance before buying
equipment. Choose from your dealer’s
wide range of maintenance services at
Services. Your Cat Dealer offers a wide Product Support. You will find nearly the time you purchase your machine.
range of services that can be set up under all D7R Series 2 parts at our dealer Repair option programs guarantee the
a customer support agreement when you parts counter. Cat Dealers utilize a cost of repairs up front. Diagnostic
purchase your equipment. The dealer worldwide computer network to find programs such as Scheduled Oil
will help you choose a plan that can in-stock parts to minimize machine down Sampling and Technical Analysis
cover everything from machine and time. Save money with remanufactured help you avoid unscheduled repairs.
attachment selection to replacement, parts. You receive the same warranty
to help you get the best return on and reliability as new products at cost
your investment. savings of 40 to 70 percent.
Service Capability. Whether in the
dealer’s fully equipped shop or in the
field, you will get trained service
technicians using the latest technology
and tools.

16
Engine Service Refill Capacities

Engine Model Cat 3176C Fuel Tank 479 L 126.5 gal

Gross Power 192 kW 258 hp Cooling System 77.4 L 20.4 gal
Flywheel Power 179 kW 240 hp Engine Crankcase 31 L 8.2 gal
Net Power - Caterpillar 179 kW 240 hp Power Train 178 L 47 gal
Net Power - ISO 9249 179 kW 240 hp Final Drives (each) 13 L 3.4 gal
Net Power - SAE J1349 177 kW 238 hp Roller Frames (each) 24.6 L 6.5 gal
Net Power - EU 80/1269 179 kW 240 hp Attachment Hydraulic System 54 L 14.3 gal
Net Power - DIN 70020 248 PS Tank Only
Bore 125 mm 4.9 in Pivot Shaft Compartment 1.9 L 0.5 gal
Stroke 140 mm 5.5 in
Displacement 10.3 L 629 in3
Hydraulic Controls - Pump
• Engine Ratings at 2100 RPM
• Net power advertised is the power available at the flywheel Pump Capacity 7000 kPa 1,015 psi
when the engine is equipped with fan, air cleaner, muffler Pump Output (Differential Steering) 295 L/min 77.9 gal/min
and alternator.
Lift Cylinder Flow 180 L/min 47.6 gal/min
• No derating required up to 2286 m (7500 ft) altitude, beyond Tilt Cylinder Flow 80 L/min 21.1 gal/min
2286 m (7500 ft) automatic derating occurs.
Ripper Cylinder Flow 180 L/min 47.6 gal/min
• Pump speed at 2231 RPM
Transmission • Pump specifications at rated engine speed

1 Forward 3.52 kph 2.19 mph

2 Forward 6.10 kph 3.79 mph Hydraulic Controls - Main Relief Valve Settings
3 Forward 10.54 kph 6.55 mph
1 Reverse 4.54 kph 2.82 mph Differential Steering Models 42 000 kPa 6,092 psi
2 Reverse 7.85 kph 4.88 mph
3 Reverse 13.58 kph 8.44 mph
Hydraulic Controls - Maximum Operating Pressure

Bulldozer 22 800 kPa 3,307 psi

Weights
Tilt Cylinder 17 225 kPa 2,498 psi
Operating Weight - Std. 25 304 kg 55,786 lb Ripper (Lift) 22 750 kPa 3,300 psi
Shipping Weight - Std. 20 630 kg 45,479 lb Ripper (Pitch) 22 750 kPa 3,300 psi
Operating Weight - XR 25 880 kg 57,056 lb Steering 38 000 kPa 5,511 psi
Shipping Weight - XR 21 206 kg 46,752 lb
Operating Weight - LGP 27 443 kg 60,503 lb
Shipping Weight - LGP 22 722 kg 50,094 lb
• Shipping Weight
(Includes lubricants, coolant, cab, hydraulic controls,
Standard Track and 10% fuel.)
• Operating weight
(Includes lubricants, coolant, full fuel tank, SU blade with tilt
cylinder, shoes, cab, hydraulic controls, drawbar and operator.)

D7R Series 2 Track-Type Tractor specifications 17

Blades Winch Specifications

Blade Type Winch Model PA110VS Variable Speed

U Blade Capacity 8.34 m3 10.91 yd3 Weight 1894 kg 4,176 lb
U Blade Width 3988 mm 13.08 ft Winch and Bracket Length 1461 mm 57.5 in
SU Blade Capacity 6.86 m3 8.98 yd3 Winch Case Width 1171 mm 46.1 in
SU Blade Width 3693 mm 12.12 ft Increased Tractor Length - STD 742 mm 29.2 in
S Blade Capacity 5.16 m3 6.75 yd3 Increased Tractor Length - XR 587 mm 23.1 in
S Blade Width 3904 mm 12.81 ft Increased Tractor Length - LGP 742 mm 29.2 in
LGP S Blade Capacity 5.89 m3 7.70 yd3 Flange Diameter 610 mm 24 in
LGP S Blade Width 4545 mm 14.91 ft Drum Width 337 mm 13.3 in
A Blade Capacity 3.89 m3 5.08 yd3 Drum Diameter 318 mm 12.5 in
A Blade Width 4503 mm 14.77 ft Drum Capacity - 24 mm (1 in) 127.41 m 418 ft
Drum Capacity - 29 mm (1.13 in) 84.12 m 276 ft
Drum Capacity - 32 mm (1.25 in) 58.83 m 193 ft
Multi-Shank Ripper Ferrule Size (O.D. x Length) 2.38 in x 2.56 in /
60 mm x 65 mm
Type Adjustable Oil Capacity 15.1 L 4 gal
Parallelogram
Beam width 2210 mm 87 in
Beam cross section 343 x 279 mm 13.5 x 11 in Standards
Maximum penetration 748 mm 29.4 in
Maximum clearance raised 757 mm 29.8 in ROPS/FOPS
(shank tip) • ROPS (Rollover Protective Structure) offered by
Number of pockets 3 Caterpillar for the machine meets ROPS criteria
Maximum penetration force 8664 kg 19,100 lb SAE J395, SAE 1040 MAY94, AND ISO 3471-1994.
Maximum pryout force 17 138 kg 38,513 lb • FOPS (Falling Object Protective Structure) meets
Weight - with one shank 3307 kg 7,431 lb ISO 3449-1992 Level II.
Weight - each additional shank 150 kg 330 lb Cab
• The operator sound exposure Leq (equivalent sound
pressure level) measured according to the work cycle
procedures specified in ANSI/SAE J1166 OCT 98 is 83 dB(A),
for cab offered by Caterpillar, when properly installed and
maintained and tested with the doors and windows closed.
• Hearing protection may be needed when operating with
an open operator station and cab (when not properly
maintained or doors/windows open) for extended periods
or in noisy environment.
• The exterior sound pressure level for the standard machine
measured at a distance of 15 meters according to the test
procedures specified in SAE J88 APR 95, mid-gear-moving
operation, is 86 dB(A).
Brakes
• Brakes meet the standard SAE J/ISO 10265 MARCH99.

18 D7R Series 2 Track-Type Tractor specifications

Bulldozer Specifications
Blade 7S 7SU 7U 7A 7S LGP
Straight Angled 25°
Blade Capacity m3 5.16 6.86 8.34 3.89 — 5.89
(SAE J1265) yd3 6.75 8.98 10.91 5.08 — 7.70
Width (over end bits) mm 3904 3693 3988 4503 4120 4545
ft/in 12'10" 12'1" 13'1" 14'9" 13'6" 14'11"
Height mm 1363 1524 1553 1111 1111 1343
ft/in 4'5.7" 5'0" 5'3" 3'7.7" 3'7.7" 4'5"
Digging Depth mm 527 527 527 669 669 668
in 20.7" 20.7" 20.7" 26.3" 26.3" 26.3"
Ground Clearance mm 1145 1145 1145 1115 1115 1153
in 45" 45" 45" 44" 44" 45"
Maximum Tilt mm 845 799 861 627 627 686
in 33.3" 31.4" 33.9" 24.7" 24.7" 27"
Weight kg 3465 3593 3926 3523 3523 3732
(without hyd. controls) lb 7640 7923 8657 7768 7768 8229
Total Operating Weight* kg 27 277 27 413 27 731 27 323 27 323 29 500
(with blade) lb 60,136 60,436 61,136 60,236 60,236 65,036

* Operating weight includes power shift arrangement, lubricants, coolant, full fuel tank, hydraulic controls, blade tilt cylinder,
ROPS canopy, multi shank ripper (one shank), 560 mm (22") shoes for standard, 914 mm (36") shoes for LGP and operator.
(Width with C-frame only is 3085 mm (10'1.5") includes C-frame assembly.

D7R Series 2 Track-Type Tractor specifications 19

Dimensions
(approximate)

8
7

1 4 6

2 5

Tractor Dimensions
Standard XR LGP
1. Track Gauge 1981 mm 78" 1981 mm 78" 2235 mm 88"
2. Width of Tractor
Over Trunnions 2869 mm 9'5" 2869 mm 9'5" 3371 mm 11'1"
Without Trunnions (std. shoe width) 2540 mm 8'4" 2590 mm 8'6" 3150 mm 10'4"
3. Machine Height from tip of Grouser:
Stack 3353 mm 11'0" 3353 mm 11'0" 3435 mm 11'3"
OROPS 3372 mm 11'1" 3372 mm 11'1" 3454 mm 11'4"
EROPS 3359 mm 11'2" 3359 mm 11'2" 3441 mm 11'3"
From Ground Face of Shoe 563 mm 22.2" 563 mm 22.2" 642 mm 25.3"
4. Length of Track on Ground 2878 mm 114" 3050 mm 120" 3167 mm 125"
5. Length of Basic Tractor (with drawbar) 4736 mm 15'6" 4736 mm 15'6" 4736 mm 15'6"
With the following attachments add to
basic tractor length:
Ripper (with tip at ground line) 1196 mm 3'11.1" 1196 mm 3'11.1" —
Ripper (with tip fully raised) 992 mm 3'3.1" 992 mm 3'3.1" —
Winch 77 mm 3" 77 mm 3" 77 mm 3"
S Blade 1081 mm 3'6.6" 1081 mm 3'6.6" 1071 mm 3'6"
SU Blade 1301 mm 4'3" 1301 mm 4'3" —
U Blade 1541 mm 5'.7" 1541 mm 5'.7" —
A Blade 1301 mm 4'6.4" 1301 mm 4'6.4" —
6. Height of Grouser 71 mm 2.8" 71 mm 2.8" 71 mm 2.8"
Ground Contact Area (std. shoe) 3.22 m2 5016 in2 3.72 m2 5760 in2 5.79 m2 9000 in2
Number of Shoes per side 40 41 43
7. Ground Clearance 416 mm 16.4" 416 mm 16.4" 496 mm 19.5"
Standard Shoe Width and Type* 560 mm 22" ES 610 mm 24" ES 914 mm 36" MS
Ground Pressure 0.766 kg/cm2 10.9 psi 0.690 kg/cm2 9.8 psi 0.464 kg/cm2 6.6 psi
8. Drawbar Height (grouser tip to center of clevis) 634 mm 24.9" 634 mm 24.9" 713.4 mm 28.1"
Pitch 216 mm 8.5" 216 mm 8.5" 216 mm 8.5"
Track Rollers/Side 7 8 7
Number of Carrier Rollers (optional) 1 per side 1 per side 1 per side

* ES – Extreme Service
MS – Moderate Service

20 D7R Series 2 Track-Type Tractor specifications

Standard Equipment

Electrical Undercarriage
Alternator, 95-amp brushless Carrier roller (LGP, only)
Alarm, backup Track adjuster, hydraulic
Batteries, 2 maintenance free 12V (24V system) Idlers, lifetime lubricated
Converter, 12V, 10 amp with 2 power outlets Track rollers, lifetime lubricated
Horn, forward warning End track guiding guards
Starting receptacle, auxiliary Sprocket rim segments, replaceable

Operator Environment Other Standard Equipment

Air conditioner, under hood CD-ROM parts book
Armrests, adjustable Engine enclosures, perforated
Cab, sound suppressed Front pull device
Differential steering control with touch shift Guards, hinged bottom
Distance travel indicator, electronic Hood, perforated
Electronic Monitoring System (EMS) Hydraulics, load sensing, dozer lift and tilt
with coolant temperature, power train oil, hydraulic oil Oil cooler, hydraulic
and fuel gauge, tachometer, odometer, gear indicator and Product Link ready
diagnostic functions Radiator doors, hinged fan blast deflector
Heater S·O·SSM sampling ports
Hour meter, electronic Tool box
Mirror, rearview Vandalism protection for fluid and battery compartments
Pedal, decelerator
Pilot operated hydraulic controls with electronic
deactivation switch
Radio ready
Seat, adjustable contour suspension (gray fabric)
Seat belt, retractable 76 mm (3")
Wipers, intermittent

Power Train
3176C diesel engine with EUI (electronic unit injection)
Advanced Modular Cooling System (AMOCS)
Air filter with electronic service indicator
Coolant, extended life
Fan, blower, direct drive
Final drives, 3 planet double reduction planetary
Fuel priming pump
Muffler with mitered stack
Parking brake, electronic
Precleaner with stratta tube dust ejector
Prescreener
Shift management:
Automatic directional and downshift
Controlled throttle, load compensating
Starting aid, automatic ether
Torque divider
Transmission, electronically controlled – 3F/3R speeds
Turbocharger, waste gate
Water separator

D7R Series 2 Track-Type Tractor specifications 21

Optional Equipment (with approximate change in operating weight)
Standard and optional equipment may vary. For specific tractor applications, additional
guarding may be required. Consult your Caterpillar dealer for further information.
Mass (kg) Weight (lb) Mass (kg) Weight (lb)
Bulldozer Arrangements Complete Bulldozers Installed Operator Environment
7A Bulldozer, Complete 3542 7,810 Air Conditioner (ROPS Mounted) 277 611
7S Bulldozer, Complete 3457 7,623 Air Suspension Seat 1.5 3
7S LGP Bulldozer, Complete 3728 8,220 Glass, Ultra-Strength 40 51 113
7SU Bulldozer, Complete 3681 8,117 Seat, Vinyl 0 0
7U Bulldozer, Complete 3911 8,624 Power Train
Bulldozer Attachments Ecology Drain 4 9
7A Tilt Cylinders 166 366 Fan, Reversible 0 0
7S Landfill Blade w/Trash Rack 2349 5,180 Fast Fuel System 3 7
7SU Blade Wear Plate 332 732 Oil Change System 9 20
7SU Landfill Blade w/Trash Rack 2404 5,300 Sand Blast Grid 15 33
7SU Landfill Blade Wear Plate 332 732 Undercarriage
7S LGP ERF Dual Tilt 500 1,103 Track Groups
7U Landfill Blade w/Trash Rack 2730 6,020 STD 24" ES HD 614 1,354
Electrical STD 24" MS HD 155 342
AccuGrade Ready Option 83 182 STD 24" MS RBT 155 342
Alternator – 75A (Sealed) 13 29 STD 26" MS HD 304 670
Converter 20A, 12V 1 2 XR 24" MS RBT 0 0
Lights, 6 32 71 XR 26" ES HD 470 1,037
Lights, 8 33 73 XR 26" MS HD 153 337
Lights, 10 64 141 LGP 36" MS RBT 0 0
Lights, Supplemental – (Adj Rip Only) 2 4 Carrier Rollers
Lights, Supplemental – 2 Fender 19 42 Carrier Rollers – STD 156 344
Machine Security System 1 3 Carrier Rollers – XR 156 344
Product Link 3 7 Other Attachments
Guards Counterweight 1061 2,340
Crankcase – ES 80 176 Counterweight Additional 345 761
Fuel Tank – STD 236 520 Drawbar 234 516
Fuel Tank – XR 240 529 Sound Suppression 159 351
Fuel Tank – LGP 245 540 Winch 1841 4,059
Rear 71 157 Winch Control 53 117
Radiator, Hinged – HD 48 106 Starting Aids
Screen – Rear (Winch) 86 190 Batteries, HD 15 33
Screen – Rear (ROPS AC) 71 157 Heater, Engine Coolant 3 7
Sweeps 295 650 Hydraulics
Track Guiding Guards Controls, Ripper 43 95
Center – STD 85 187 Controls, Ripper Adjustable 55 121
Center – XR 107 236 Cooler, Hydraulic Oil 26 57
Track Roller Guards Ripper
Track Roller Guard – STD 292 644 Adjustable Ripper, Multi-Shank 3307 7,431
Track Roller Guard – XR 362 798 Additional Tooth 150 330
Track Roller Guard – LGP 405 893 Field Installed Attachments
Radio/Cassette 1 2
Tool Kit 5 10
• Waste Handling Arrangements are available from the
factory. Contact Custom Products for availability.

22 D7R Series 2 Track-Type Tractor specifications

Notes

D7R Series 2 Track-Type Tractor specifications 23

D7R Series 2 Track-Type Tractor

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All Rights Reserved
Printed in U.S.A.

Materials and specifications are subject to change without notice.

Featured machines in photos may include additional equipment.
See your Caterpillar dealer for available options.

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Replaces AEHQ5438-01 are trademarks of Caterpillar and may not be used without permission.