769D ®

Off-Highway Truck

Engine
Engine Model Caterpillar 3408E
Gross Power 386 kW 518 hp
Flywheel Power 363 kW 487 hp
Weights
Gross Machine Weight 71 400 kg 157,000 lb
Operating Specifications
SAE (2:1) Capacity 24.2 m3 31.7 yd3
Nominal Payload 36.4 tonnes 40.0 tons
769D Off-Highway Truck
Engineered for performance, designed for comfort and built to last.

Power Train - Engine Power Train - Transmission Engine/Power Train Integration

® ®
The power train features the Caterpillar The Cat seven-speed, power shift The Caterpillar Data Link System
3408E Diesel engine and Advanced transmission, matched with the direct- electronically combines engine,
Modular Cooling System for efficient injection 3408E diesel engine provides transmission, brake and operational
operation. pg. 4 constant power over a wide range of information to optimize overall
operating speeds. pg. 6 truck performance. The Electronic
Technician (ET) accesses stored
diagnostic data, significantly
reducing downtime. pg. 8

Body Options Operator Station

The 769D offers a flat floor or dual-slope Controls and gauges are positioned to
option to meet specific user applications. maximize productivity and comfort.
Both incorporate time-proven box The cab includes air suspension seat
beam and full-length stringer design and advanced electronic monitoring
for extended life. A full offering of system. Adjustable telescoping steering
attachments and customized options are column, electric wipers, window and
available to meet specific needs. pg. 13 body controls reduce operator effort
and simplify control. pg. 14

Time proven iron and modern technology

combine to provide a highly productive,
durable, reliable off-highway truck, focused
on our customers greatest need...lowest
cost-per-ton.

2
Oil-Cooled, Rear Disc Brakes Integrated Braking Control (IBC) Structures
Caterpillar oil-cooled, multiple disc IBC integrates the optional Automatic Caterpillar truck frames are built for
brakes offer exceptional, fade-resistant Retarder Control and Traction Control severe applications. Mild steel provides
braking and retarding. pg. 10 System (TCS) into one system to flexibility, durability and resistance to
enhance truck performance and impact loads. Castings and forgings in
productivity and improve operator high stress areas of the frame provide
confidence. pg. 11 great structural strength. pg. 12

Serviceability/Total Customer Support Systems/Applications

✔ Easy serviceability access, QuickEvac TM
Numerous options and a system
system, on- and off-board diagnostics, approach to match the 769D to the
machine management service, worldwide most appropriate loader meets customer
parts availability and literature support needs for various applications. pg. 18
represents the Caterpillar commitment
to customer support. pg. 16

✔ New Feature

3
Power Train - Engine
The eight cylinder, turbocharged and air-to-air aftercooled HEUI engine is built for power,
reliability and economy with reduced sound levels and low emissions.

Engine.
1) Turbocharger
1
2 2) Electronic Control Module (ECM)
3) Valve Rotators
3 4) Stellite-Faced Valves
5) Steel-Backed, Copper-Bonded
8 Bearings
6) Oil Cooler
7) Forged Crankshaft
8) Adjustment-Free Fuel Injection Pump
9
9) Hydraulic Electronic Unit Injectors
4
10) Forged Steel Pistons
10 11) Full-Length, Water-Cooled
Cylinder Liners
5 Engine Features. Contributing to the
3408E power and reliability are:
• High pressure injection
6
11 • Full electronic control, one piece
forged steel pistons with three rings
cooled by oil spray
7 • Copper-bonded crankshaft bearings
• Hardened crankshaft journals
• Dry-type radial seal air cleaners with
primary and secondary elements and
precleaner
• Direct-electric, 24-volt starting
Cat 3408E Diesel Engine. The four-stroke Torque Rise. The 27 percent torque system with 50-amp alternator and
design uses long power strokes for more rise provides high lugging force during four 172-amp-hour, low maintenance,
complete fuel combustion and optimum acceleration on grade or in high rimpull high output, 12-volt batteries
efficiency. Large displacement and a low conditions. The torque rise effectively
speed rating can help extend engine life. matches the transmission shift points to
This engine meets U.S. Environmental provide maximum efficiency and faster
Protection Agency Tier 2 emissions cycle times.
regulations and Stage II EU Emissions
Directive 97/68/EC.

4
Hydraulic Electronic Unit Injector (HEUI).
The HEUI is a proven high-pressure,
direct injection fuel system. This system
electronically monitors operator and
machine inputs to optimize engine
performance. HEUI is unique in its
ability to independently control injection
pressure over the entire engine operating
range. This allows complete control over
injection timing, duration, performance
and efficiency. Rate shaping technology
modifies the heat release characteristics
of the combustion process for significant
decreases in sound and emission levels.
Exhaust smoke is significantly reduced
through precise, electronic control of
fueling limits and injection timing of
the HEUI.

Advanced Modular Cooling System AMOCS Design. The cooling elements

(AMOCS). Is a Caterpillar exclusive are individual core modules, with brass
Electronic Control Module (ECM). technology which improves serviceability tube construction within each core, that
The ECM monitors key functions and and reduces downtime. It utilizes an are connected to a sectioned bottom
logs critical indicators. The Electronic exclusive two pass cooling system tank. There is no top tank to remove.
Technician can access this diagnostic and increased cooling surface area to Each core module can be replaced
information for easier maintenance provide significantly more cooling individually (without removing the
and repair. capacity than conventional systems. entire radiator), saving considerable
cost and repair time. And with nine
System Operation. The two pass system
steel fins per inch, fin bending
circulates coolant from the sectioned
resistance is improved.
bottom tank up through one side of the
cooling element and down through the
other side returning it to the bottom tank.

5
Power Train - Transmission
The Cat seven-speed, power shift transmission gets the job done smoothly and quickly.

1
3

2 4

Transmission. The Cat seven-speed, • First gear has both torque converter • Separate hydraulic circuit with cooler
power shift transmission, matched with drive and direct drive
• Electronic control has built-in
the direct-injection 3408E diesel engine
• Second through seventh gears are diagnostics and fault code memory,
provides constant power over a wide
direct drive event memory and programmable
range of operating speeds.
features
• Single-lever shift control provides
Transmission Features. Include:
automatic shifting in all gears up to • Control throttle shifting
• Seven speeds forward, one reverse the one selected by the control lever
• Economy shift mode
• Torque converter driven reverse • Each shift is individually modulated
for maximum smoothness

6
1) Lock-up Torque Converter. Combines • Patented rotating clutch pressure seals Wheels and Rims. Cast rear wheels
the maximum rimpull and cushioned minimize drag losses and improve and Cat center-mount rims are mounted
shifting of torque converter drive reliability. using studs and nuts to minimize
with the efficiency and performance maintenance and maximize durability.
• 35 percent gear splits between all
of direct drive.
gears match Cat engine design for Transmission Chassis Controller (TCC).
• Engages at approximately 6.9 km/h optimum use of engine power with TCC uses electronically transferred
(4.3 mph), delivering more power minimized shifting and torque engine rpm data to execute shifts at
to the wheels. converter use. preset points for optimum performance
and efficiency. This integration allows:
• Lock-up clutch quickly releases and 3) Final Drive. Final drive and differential
re-engages during shifts, maintaining torque multiplication of 13.15:1 further • Programmable top gear limit
power wind-up, improving transmission reduces stress on the drive train.
• Control throttle shifting
life and increasing operator comfort.
4) Sump. Transmission and torque
• Directional shift management
2) Planetary Power Shift Transmission. converter share a common sump.
Utilizes a modulating pressure valve to The combined sump offers an easily • Neutral coast inhibitor
regulate clutch pressure rise and fall to accessible fill tube and sight gauges.
• Economy shift mode
ease clutch engagement. This reduces
Axles. Full floating axles are shot-peened
shock loads on power train components. Integration. The Caterpillar power
to relieve internal stresses and increase
Features include: train integration provides increased
durability. Rolled splines also provide
component life and operator comfort.
• Large diameter clutches and robust increased service life.
planetary gears and bearings.

7
Engine/Power Train Integration
Combining the electronic Engine Control Module (ECM) with the Caterpillar Transmission Chassis
Controller (TCC) allows critical power train components to work more intelligently.

1 7

2 6
3

4 5
8
9

Integration. 7) Caterpillar Electronic Monitoring • Controlled Throttle Shifting. Engine

System rpm is regulated during a shift to
1) Electronic Technician
reduce driveline stress for smoother
8) Transmission
2) Cat Data Link System shifts and longer component life.
9) Oil-cooled Brakes
3) Engine Control Module • Economy Shift Mode. Modifies
Cat Data Link. The Cat Data Link engine maps, resulting in improved
4) Engine
electronically integrates the machine’s fuel consumption.
5) Transmission Chassis Control computer systems, which allows
communications and provides the
6) Automatic Retarder Control, Traction
following benefits:
Control System and Integrated Brake
Controller

8
• Directional Shift Management. Electronic Technician (ET). The electronic Optional Attachments. Caterpillar offers
Regulates engine speed during engine and transmission controls provide optional attachments that integrate with
directional shifts to prevent damage exhaustive diagnostic capability for the Cat Data Link System.
caused by high speed directional service technicians. The ability to store
• Automatic Retarder Control (ARC).
changes. both active and intermittent indicators
Works with other electronic
will simplify problem diagnosis and
Elevated Idle Neutral Coast Inhibitor. components to automatically control
total repair time, resulting in improved
Helps prevent the transmission from retarding on grade, maintaining
mechanical availability and lower
shifting to neutral at speeds above approximately 2,230 rpm.
operating cost.
6.5 km/h (4 mph).
• Traction Control System (TCS).
ET accesses data stored in the engine
Body-up Shift Inhibitor. Helps prevent Improves performance in poor
and transmission controls via the
the transmission from shifting above a underfoot conditions by electronically
Cat Data Link System.
pre-programmed gear without the body monitoring and controlling wheel
fully lowered. ET displays the status of all engine slippage.
parameters including throttle position,
Event Memory. Records machine • Integrated Brake Controller (IBC).
timing and fuel flow.
management data that can be accessed Combines ARC and TCS, reducing
using the Electronic Technician. ET replaces 13 mechanical tools to the number of electronic components
Recorded information includes: perform functions like cylinder cutout and electrical lines.
checks, injector solenoid tests and
• Shift histograms
timing calibration.
• Operator-induced events
Caterpillar Electronic Monitoring
• Lock-up clutch counter System (CEMS). CEMS allows the
operator to view requested information
• Machine overspeed
and utilizes a three-category warning
• Transmission overspeed system to alert the operator to abnormal
machine conditions.

9
Oil-Cooled, Rear Disc Brakes
Rear braking lets the operator concentrate on the haul road.

Oil Cooled Disc Brakes. Are designed

and built for reliable, adjustment-free
operation providing superior performance
and service life in comparison to shoe-
2 type and dry-disc systems.
Oil Film. An oil film prevents direct
contact between the discs. Absorbing
1 the braking forces by shearing oil and
carrying heat away, this design extends
brake life.
Secondary Braking. Spring applied,
hydraulically released, oil-cooled disc
brakes are located on the rear axle.
The front brakes will activate as part
7 of the secondary system, even if
3 switched out of service.
Parking Brakes. Spring applied,
4 hydraulically released parking brakes
use wet disc brakes in service system.
A toggle switch activates the
parking brakes.
5 6 Pistons. A Caterpillar patented, two-
piston design combines the service,
secondary and parking brakes, along
with retarding functions.
The primary piston hydraulically actuates
both service and retarding functions.
Brakes. Multiple Disc Brakes. Caterpillar forced The secondary piston is spring-applied
oil-cooled, multiple disc brakes are and held in the disengaged position by
1) Parking/Secondary Piston hydraulic pressure. If hydraulic system
continuously cooled for exceptional,
2) Service/Retarding Piston fade-resistant braking and retarding. pressure drops below a certain level,
The optional ARC and TCS utilize the the spring-applied secondary piston
3) Friction Discs automatically applies the brakes.
oil-cooled rear brakes to enhance truck
4) Steel Plates performance and increase productivity.
5) Actuating Springs
6) Cooling Oil In
7) Cooling Oil Out

10
Integrated Braking Control (IBC)
Electronically combines Automatic Retarding Control (ARC) and the Traction Control
System (TCS) into one integrated control system.

Cat Retarding System. When retarding, Engine Overspeed Protection. With the Differential Action. Utilizes normal
the engine runs against compression on accelerator depressed and/or ARC differential action to provide superior
downhill hauls, resulting in no fuel burn. turned off, ARC will automatically maneuvering in poor underfoot
activate at 2,475 rpm to help avoid conditions. Also reduces tire scuffing as
Retarding forces and heat are absorbed
potentially destructive and often costly compared to positive lock differentials
through the oil. The retarding system
engine overspeeds. used on other systems.
generates lower drive line stresses than
drive line retarding systems. ARC Benefits. Include: Torque. TCS divides torque equally
to reduce stress created on final drives
• Increased operating efficiency with
ARC Operating Efficiency Advantages and axles when torque is transferred
faster downhill speeds. By maintaining
to one side.
consistently higher engine speeds,
average truck speed will be higher System Back-up. Should sensors fail,
than a manually controlled truck. the normal differential action is still
Engine Speed (rpm)

*
available to maintain control and steering.
• Excellent controllability and reduced
operator effort. Automatic brake
modulation provides a smoother ride
over manual modulation, allowing
the operator to focus more on truck
operation down the haul road.
0 10 20 30 40 50 60 70
Time (Seconds) • Improved component life, optimized
system cooling capability and reduced
Automatic Retarder Control
(Maintains Engine rpm between 2160-2300) torque fluctuations result from ARC’s
Manual Retarder Control
precision.
(Wide Variation in Engine rpm)
• Faster troubleshooting and diagnosis
* Optimum Engine rpm
with self-diagnostic capability and
the ability to communicate with ET
through the Cat Data Link System.
Automatic Retarder Control (Optional).
The ARC electronically controls braking • Operator awareness through electronic
on grade to maintain approximately integration and CEMS, alerting the
2,230 engine rpm (engine rpm is operator to overspeed conditions and
adjustable from 2,160-2,300 rpm critical machine functions.
in increments of 10 rpm). ARC is
Traction Control System (Optional).
deactivated when the operator applies
Monitors wheel slip so if it exceeds
the brakes or throttle.
the set limit, the oil-cooled disc brakes
are automatically applied to slow the
spinning wheel.
Operator Awareness. An on-dash
indicator shows the operator that TCS
is engaged.

11
Structures
The backbone of the Cat off-highway truck.

Frame Serviceability. The box-section

frame allows simple access to power
train components. This open design
reduces overall removal and installation
time, lowering repair costs. Transmission
access is excellent under the raised and
pinned body. Repairs can be made
without preheating in ambient
temperatures 16° C (60° F) using
readily available welding supplies.

Rollover Protection Structure (ROPS).

The ROPS attaches securely to four
castings welded into the frame.
Suspension System. Designed to
dissipate haul road and loading impacts
for extended frame life.
Four, independent, self-contained, oil
pneumatic, variable-rebound, suspension
Box-Section Design. The 769D frame Frame Features. Include: cylinders absorb shocks. Rear cylinders
uses a box section design, incorporating allow axle oscillation and absorb the
• Integral front bumper bending and twisting stresses. Front
17 castings in high stress areas with
deep penetrating and continuous wrap- • Front box beams for suspension cylinders, mounted to the frame,
around welding. Mild steel, which cylinder and ROPS support serve as steering kingpins, providing
provides flexibility, durability and excellent maneuverability and reduced
• Box-section rear crossmember for body maintenance. Caster and camber
resistance to impact loads even in
and ROPS support with attachment are preset.
cold climates is used throughout.
points for maintenance platform and
Castings. Castings have large radii with rear engine hood hinge support
internal reinforcing ribs to dissipate
• Castings are used to provide additional
stress. Castings move welds to lower
strength in critical stress areas
stress areas and provide two to three
times the strength of equivalent sized • Mild steel plates (290 MPa [42,000 psi]
fabricated structures. minimum yield strength) and castings
(241 MPa [35,000 psi] minimum yield
strength) provide flexibility, durability
and easy field maintenance

12
Body Options
Caterpillar builds a variety of rugged, durable bodies to perform in the toughest
applications.

Design. 769D bodies are designed to Standard Body. Comes exhaust heated An 18 Degree Ducktail and 9 Degree
handle a variety of material densities. with options including a full-time Forward Body Slope. Retains the load
Maximum payload is reached in three muffler or exhaust diverter. on grades up to 15 percent and higher.
to five passes from a matched Cat This design also helps maintain proper
Custom Attachments. Including tail
loader in 1700 kg/m3 (2,900 lb/yd3) load distribution.
extensions, liner packages, sideboards
material and higher.
and other custom designs are offered 2) Flat Floor Construction and Mining
Sidewall and Floor Junctions. Are joined to help ensure rated payload. Body. Offers excellent load retention on
by five-sided beams to resist impact grades up to 12 percent and on smoother
1) Dual-Slope Body. Offers the lowest
loading and sustained hauling stresses. haul road conditions.
cost-per-ton option in most construction
Box-Section Beams. Offer increased and mining applications. Body Floor Construction. Uses a
durability in the floor, sidewalls, top 12 degree single slope, offering
Dual-Slope Body Performance. Efficient
rail, corner and cab canopy areas. excellent wear characteristics and
under most haul road conditions, but its
uniform dumping into hoppers,
400 Brinell Steel. Wear surfaces provide strength comes from higher levels of
crushers and feeders.
excellent wear resistance and are easily production in sites with rough haul
welded without preheating procedures. roads and steeper grades.
Two-Stage Hoist Cylinders. Provide Body Floor Construction. Uses an eight
fast dump cycle times of 7.5 seconds degree “V” bottom for increased load
for Raise and 8.3 seconds for Lower. retention, a low center of gravity and
reduced shock loading. It also aids in
centering the load.

13
Operator Station
Control ease and comfort maximize productivity.

15

6
5

10 1
3

7
11
13

4
12
8

14 2
9

14
769D Operator Station. Rated highly 9) Trainer’s Seat. Includes back rest and
by operators. Everything needed for retractable seat belt.
top performance is at the operator’s
10) Caterpillar Electronic Monitoring
fingertips.
System (CEMS). Provides critical data.
1) Wraparound Dash Panel. Offers an The system features three separate
easy line-of-sight arrangement, using displays:
LED backlit rocker switches.
• Four-gauge cluster with coolant
2) Caterpillar Contour Series Air temperature, oil temperature, brake 15) Truck Production Management
Suspension Seat. Standard and fully air pressure, fuel level System (TPMS) (Optional). Provides
adjustable, including an adjustable payload and cycle time data.
• Tachometer, digital speedometer/
right-hand armrest.
actual gear indicator • Cat developed technology utilizes
3) Tilt/Telescoping Steering Wheel. strut pressure sensors and an on-board
• Message center module
With ergonomic grip improves comfort microprocessor to determine payload
and control. Low effort steering system 11) Standard Heater and Optional Air weight.
and ergonomically designed retarder Conditioner. Includes four-speed fan
lever reduces operator fatigue. Also and nine vents. • Accurate under normal loading to
includes an enhanced turn signal lever within ± five percent over a normal
12) Foot Pedals. Ergonomically designed operating shift.
with high beam actuator and electric
for increased operator comfort.
windshield wiper controls. • Delivers consistent accurate payloads
13) Electric Power Window. and improves efficiency by minimizing
4) Transmission Console. Has LED
For simplified operation. overloading and underloading
backlit gear numbers and ergonomic
shift knob. • - On-board computer stores 1,400 cycles
5) Visibility. Exceptional all-around for further analysis of payload weight,
viewing area reduces fatigue and cycle segment times, cycle segment
improves productivity. distances and actual clock time and
date of each cycle.
6) Integral, Sound-Suppressed
ROPS/FOPS Cab. Is resiliently mounted • - External lights signal loading tool
providing a quiet, protected work operator when payload is reached.
environment. The cab is radio-ready • - Internal troubleshooting and fault
with speakers, wiring harness, antenna recording for easier maintenance.
and mounting bracket.
7) Front Brake Cut-Out Switch.
Increases front brake component life.
8) Large Storage Compartment. 0.10 m3
(3.5 ft3) of space is located under the
trainer’s seat. 14) Electrohydraulic Hoist Lever.
Is fingertip actuated and provides
low impact body-down snubbing.

15
Serviceability/Total Customer Support
Purchase of a Caterpillar machine includes a total commitment to customer support.

Complete Engine Prelubrication.

Provides engine oil pressure prior to
engine cranking. Reduces engine dry
start wear and risk of cold starts for
increased protection of key components.
Also provides expanded low temperature
range for 15W40 motor oils.
Improved Serviceability and Machine
Availability. Reduces time to complete
engine service (changing engine oil, oil
filters, fuel filter, air cleaner) by as much
as 30 to 50 percent. Improves the ability
to better schedule engine services at
prescribed hours, and integrates easily
with PM trucks to further reduce total
cycle time of engine service.
Maintenance Platform. Provides access
to air tanks, brake master cylinder and
make-up tank; engine oil level; air
filters; steering hydraulic tank; and
battery compartment.

Cat QuickEvacTM System. Is an exclusive Contamination Control. Environmentally

Caterpillar on-board engine oil efficient, clean oil changes are ensured
evacuation and prelubrication system. since engine sump is evacuated directly
into PM trucks or waste containers with
Automated Engine Oil Change. A new,
flush faced, quick disconnects for fast
state of the art, on-board system evacuates
evacuation and fill. This eliminates
engine sump in less than two minutes
handling of waste oil, minimizes
and allows for partial purge of oil filters
chances of oil spillage and enhances
prior to removal, minimizing oil spills.
contamination control efforts by
New oil is delivered through primary
ensuring complete filtration of new
filters, enhancing contamination control
oil on engine refill.
efforts while ensuring that new filters
are correctly filled following routine Ground Level Battery Disconnect
oil change. Switch. Facilitates safe, convenient
servicing and maintenance.

16
On-Board Diagnostics. With CEMS,
provides the machine operator with
a three-category warning system and
quick access to stored diagnostic data.
Off-Board Diagnostics. With ET, allows
service technicians access to stored
diagnostics data reducing downtime
and lowering operating costs. ET stores
engine parameter information such as
timing, throttle position and fuel flow.
Transmission data is available through ET
via access to the Cat Data Link System.
Radial Seal Filters. Are easy to change,
reducing air filter maintenance times.
Vertical, Spin-on Oil Filters. Provide for
simplified servicing.
Quick Coupler Pressure Taps. Located
in all hydraulic systems provide clear,
quick pressure checks. S·O·SSM oil
analysis points make oil sampling
quick, clean and easy.
Sealed Electrical Connectors. Lockout
dust and moisture. Color-coded wiring is
standard for the entire Cat product line.
Machine Management Service.
Cat Dealers help manage equipment
investments with:
Parts Availability. The Caterpillar Literature Support. Caterpillar manuals
• Vehicle systems analysis to help worldwide computer network locates are easy to use and help provide the full
match the right machine to the job parts instantly to minimize machine value of an equipment investment.
• Preventative maintenance programs downtime.

• S·O·S oil analysis and technical

analysis programs
• Repair option analysis
• Training for operators and mechanics
• TPMS data analysis

17
Systems/Applications
The 769D is designed for versatility.

Machine Configuration Options. System Approach. The Caterpillar Caterpillar Product Analysis Team
Caterpillar offers a variety of machine system approach means increased (PAT). Combined with Caterpillar
configuration options to help meet efficiencies through common design. software programs can assist customers
customer needs. Haul trucks, loaders, excavators, with detailed, application evaluation.
tractors, engines for generator sets and
Body Options. Include a full line of Loader Match. Designed to work as part
pumps - all designed by Caterpillar -
standard and custom designs based on of a system, the 769D is best matched to
use common components, parts and
specific customer preference, material the following Caterpillar loaders:
design. Commonality reduces customer
density, loading tool and site conditions.
parts stock, improves parts availability, • 980G - four to five pass/match
Tire Options. A full line of tire options, reduces training/maintenance and
• 988G - three to four pass/match
representing various manufacturers, is improves diagnostics. This system
offered by Caterpillar to maximize approach adds up to lower cost-per-ton. • 5080 - four to five pass/match
performance and life for specific Dealer support is available to address
• 375ME - four to five pass/match
applications. customer needs regardless of the
component.
Attachments. Give the customer options
to tailor trucks for specific application
requirements, including:
• Truck Production Management System
• Automatic Retarder Control
• Traction Control System
• Custom product offerings
• Muffler/exhaust diverter

18
Engine Brakes

Engine Model Cat 3408E Brake surface - front 1395 cm2 216 in2
Gross Power 386 kW 518 hp Brake surface - rear 54 999 cm2 8,525 in2
Flywheel Power 363 kW 487 hp Differential ratio 2.74:1
DIN 70020 505 PS Planetary ratio 4.80:1
Max. Torque 2194 N.m 1,618 lb ft Total reduction ratio 13.15:1
Torque rise 27 % • Brakes meet the SAE J/ISO 3450:1998, ISO 3450:1996
Bore 137 mm 5.4 in standards up to 71 400 kg (157,000 lb) gross operating weight.
Stroke 152 mm 6 in
Displacement 18 L 1,099 in3
• Gross power meets ISO 3046-02 standards. Service Refill Capacities
• Flywheel power meets ISO 9249, SAE J1349 JUN 95 and Fuel Tank 530 L 140 gal
EEC 80/1269 standards.
Cooling System 113.5 L 30 gal
• These ratings apply at 2,000 rpm when tested under the Crankcase 45 L 12 gal
specified standard conditions for the specified standard.
Differentials and final drives 83 L 22 gal
• Power rating conditions based on standard air conditions Steering tank 34 L 9 gal
of 25° C (77° F) and 99 kPa (29.32 in Hg) dry barometer,
Steering system (includes tank) 56 L 15 gal
using 35° C API gravity fuel having an LHV of 42 780 kJ/kg
(18,390 Btu/lb) when used at 30° C (86° F) [reference a fuel Brake/hoist hydraulic tank 155 L 35 gal
density of 838.9 g/L (7.001 lb/gal)]. Brake/hoist system 277 L 73 gal
(includes tank)
• Net power advertised is the power available at the flywheel
when the engine is equipped with fan, air cleaner, muffler Torque converter/ 53 L 14 gal
and alternator. transmission sump
• No derating required up to 3050 m (10,000 ft) altitude. Torque converter/transmission 72 L 19 gal
system (includes sump)
• Meets U.S. Environmental Protection Agency Tier 2
emissions regulations.
• Meets Stage II EU Emissions Directive 97/68/EC. Body Hoists

Pump flow - high idle 417 L/min 110 gal/min

Transmission Relief valve setting - raise 17 225 kPa 2,500 psi
Relief valve setting - lower 3445 kPa 500 psi
Forward 1 12.6 kph 7.8 mph
Body raise time @ high idle 7.5 Seconds
Forward 2 17.2 kph 10.7 mph
Body lower time float 8.3 Seconds
Forward 3 23.3 kph 14.5 mph
Body power down @ high idle 8.3 Seconds
Forward 4 31.4 kph 19.5 mph
• Twin, two-stage, hydraulic cylinders mounted inside the
Forward 5 42.5 kph 26.4 mph
main frame, double acting in second stage.
Forward 6 57.3 kph 35.6 mph
• Power raise in both stages and power down in second
Forward 7 77.7 kph 48.3 mph
stage.
Reverse 16.6 kph 10.3 mph
• Maximum travel speeds (standard 18.00-R33).
Suspension

Effective cylinder stroke - front 234 mm 9.2 in

Effective cylinder stroke - rear 149 mm 5.9 in
Rear axle oscillation ±8.5°

769D Off-Highway Truck specifications 19

Final Drives ROPS

Differential ratio 2.74:1 • ROPS Meets SAE J1040 MAY94

Planetary ratio 4.80:1 and ISO 3741:1994
Total reduction ratio 13.15:1 • Rollover Protective Structure (ROPS) is offered by
• Planetary, full-floating. Caterpillar as standard equipment.
• The operator sound pressure level is less than 74 dB(A)
when measured according to the stationary test procedures
Approximate Weights - Flat Floor and the conditions specified in ISO 6394.
• The operator sound exposure Leq (equivalent sound
Gross vehicle 71 400 kg 157,000 lb pressure level) is less than 79 dB(A) when measured
Chassis 23 000 kg 50,600 lb according to the work cycle procedures specified in
Body 7800 kg 17,200 lb ANSI/SAE J1166 MAY 90 for the cab offered by Caterpillar
when properly installed and maintained and windows
Standard liner 3300 kg 7,200 lb
closed.
Front axle - empty 49.7 %
Front axle - loaded 33.3 %
Rear axle - empty 50.3 % Tires
Rear axle - loaded 66.7 %
• Percentages represent weight distribution without liner • Tires Standard: 18.00-R33 (E4)
• Productive capabilities of the 769D are such that, under
certain job conditions, TKPH (TMPH) capabilities of
Approximate Weights - Dual-slope standard or optional tires could be exceeded and,
therefore, limit production.
Gross vehicle 71 400 kg 157,000 lb • Caterpillar recommends the user evaluate all job conditions
Chassis 23 000 kg 50,600 lb and consult the tire manufacturer to make proper tire
Body 7300 kg 16,200 lb selection.
Standard liner 3200 kg 7,000 lb
Front axle - empty 49.8 %
Front axle - loaded 33.3 %
Sound
Rear axle - empty 50.2 % • Exterior Sound Meets ISO, ANSI/SAE
Rear axle - loaded 66.7 % standards
• This machine, in standard configuration, when measured
and operated per the prescribed modes in ANSI/SAE J88
Weights APR95 has a 15 m sound pressure level of 84 dB(A) for the
mode that gives the highest level.
Gross Machine Weight 71 400 kg 157,000 lb • When the optional attachment sound suppression package
is properly installed and maintained, this machine complies
with the European Directive for Equipment Used Outdoors -
Operating Specifications 2000/14/EC.

SAE (2:1) Capacity 24.2 m3 31.7 yd3

Nominal Payload Capacity 36.4 tonnes 40.0 tons Steering
• Refer to the Caterpillar 10/10/20 Payload Policy.
• Steering Meets SAE J1511 FEB94
and ISO 5010-1992
• Turning diameter per ISO 7457-1997 is 17.0 m (55 ft 9 in).
• Machine clearance diameter per ISO 7457-1997 (E) is 20.3 m
(66 ft 7 in).
• Steering angle (left or right) is 39 degrees.
• Separate hydraulic system prevents cross contamination.
• Steering wheel effort is low and cycle times are reduced
with dynamic, load sensing, variable displacement piston-
type steering pump.

20 769D Off-Highway Truck specifications

Dimensions
All dimensions are approximate.

4437 mm
(14 ft 6 in)
*5069 mm
(16 ft 8 in)

1
4
3
2
3690 mm
(12 ft 1 in)
empty 9° 627 mm
3590 mm 3102 mm
(24 in)
(11 ft 9 in) 5 empty 3615 mm (10 ft 2 in)
empty (11 ft 10 in) 3665 mm
loaded
60°
(12 ft)

3713 mm 4398 mm
(12 ft 2 in)
8 (14 ft 5 in) 3658 mm
200 mm 8039 mm
6 (12 ft)
empty
(8 in) (26 ft 5 in)
7
loaded
9
empty

Flat Floor Dual-slope 10

11 7615 mm 25 ft 0 in 7430 mm 24 ft 5 in loaded

12 1390 mm 4 ft 7 in 1454 mm 4 ft 9 in
13 5430 mm 17 ft 10 in 5275 mm 17 ft 4 in 615 mm 2470 mm
14 7751 mm 25 ft 5 in 7709 mm 25 ft 4 in (25 in) (8 ft 1 in) 3584 mm
empty
15 3188 mm 10 ft 6 in 3143 mm 10 ft 4 in 3632 mm (11 ft 9 in)
(11 ft 11 in) 3910 mm
16 465 mm 1 ft 6 in 525 mm 1 ft 9 in (12 ft 10 in)
17 315 mm 1 ft 0 in 415 mm 1 ft 4 in
18 2541 mm 8 ft 4 in 2380 mm 7 ft 10 in * Operating width to r.h. mirror
19 4072 mm 13 ft 4 in 4027 mm 13 ft 3 in
10 3997 mm 13 ft 1 in 3952 mm 13 ft 0 in

Capacity - Flat Floor - 100% fill factor Capacity - Dual-slope - 100% fill factor

Struck 16.5 m3 21.6 yd3 Struck 17 m3 22.2 yd3

Heaped 3:1 21.6 m3 28.3 yd3 Heaped 3:1 21.7 m3 28.4 yd3
Heaped 2:1 (SAE) 24.2 m3 31.7 yd3 Heaped 2:1 (SAE) 24.2 m3 31.7 yd3
Heaped 1:1 31.7 m3 41.5 yd3 Heaped 1:1 23.7 m3 31 yd3

769D Off-Highway Truck specifications 21

Retarding Performance
The brake performance retarding curves shown in this section 2. Read from the appropriate gross weight down to percent
are for general guidance only. As each site has many unique favorable effective grade. (For these retarding charts,
environmental and operating conditions that will impact effective grade equals the maximum grade of all downhill
retarding performance, actual site performance could vary haul segments minus rolling resistance – do not use an
considerably from predicted performance. Users should use average grade value.)
the retarding speed (gear) recommendations from these tables 3. From the intersection of the gross weight and effective grade
as a starting point for determining retarding performance and line point, read horizontally to the appropriate gear curve.
then adjust retarding speeds to their site-specific conditions. If the horizontal line intersects two gear curves, choose the
In adjusting retarding performance to continuously changing first gear curve that the horizontal line intersects (reading
environmental and site-specific conditions, users need to from right to left) and read the retarding speed performance
exercise care to maintain brake cooling and machine immediately below this point. If the intersection point falls
controllability at all times. on a vertical line between two gears, choose the lowest of the
To determine brake retarding performance from retarding tables: two gears to allow for higher engine rpm thus maximizing
1. Determine the total distance of all downhill grades combined brake cooling capability.
for a given haul profile. This total distance determines the 4. Adjust recommended retarding speeds to site specific
appropriate retarding table (continuous or one of the grade (environmental and operational) conditions. If the brake
distance tables) applicable to your haul profile. system overheats or specific site conditions dictate (tight
turns, short steep grades, manual braking, etc.), reduce
ground speed to allow the transmission to shift to the next
lower speed range.
Empty Weight
Gross Machine Weight
71 400 kg (157,000 lb)

Gross Weight
0 40 80 120 160 200 lb x 1000

0 10 20 30 40 50 60 70 80 90 kg x 1000

30% 25%
E 20%
L
EFFECTIVE GRADE (Favorable)

15%

2nd Gear

10%
3rd Gear

4th Gear

5th Gear 5%
6th Gear
7th Gear

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
SPEED
Continuous Grade Length
22 769D Off-Highway Truck specifications
 Gross Weight
0 40 80 120 160 200 lb x 1000

0 10 20 30 40 50 60 70 80 90 kg x 1000

30%
2nd Gear E 25% L
20%

EFFECTIVE GRADE (Favorable)

15%
3rd Gear

4th Gear 10%

5th Gear

6th Gear
5%

7th Gear

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
SPEED
Grade Length 450 m (1500 ft)

Gross Weight
0 40 80 120 160 200 lb x 1000

0 10 20 30 40 50 60 70 80 90 kg x 1000

30%
25%
2nd Gear E 20% L
EFFECTIVE GRADE (Favorable)

15%

3rd Gear

4th Gear 10%

5th Gear

6th Gear
5%
7th Gear

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
SPEED
Grade Length 600 m (2000 ft)

769D Off-Highway Truck specifications 23

Retarding Performance (continued)

Gross Weight
0 40 80 120 160 200 lb x 1000

0 10 20 30 40 50 60 70 80 90 kg x 1000

E 30% L
25%
20%

EFFECTIVE GRADE (Favorable)

2nd Gear 15%

3rd Gear

10%
4th Gear

5th Gear
6th Gear
5%

7th Gear

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
SPEED
Grade Length 900 m (3000 ft)

Gross Weight
0 40 80 120 160 200 lb x 1000

0 10 20 30 40 50 60 70 80 90 kg x 1000

E 30% 25% L
20%
EFFECTIVE GRADE (Favorable)

15%
2nd Gear

3rd Gear
10%
4th Gear

5th Gear
6th Gear 5%
7th Gear

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
SPEED
Grade Length 1500 m (5000 ft)

24 769D Off-Highway Truck specifications

Gradeability/Speed/Rimpull
To determine gradeability performance,
read from gross weight down to the
percent of total resistance. Total
resistance equals actual percent grade
plus one percent for each 10 kg/tonne
(20 lb/ton) of rolling resistance. From
this weight-resistance point, read
horizontally to the curve with the
highest obtainable gear, then down to
maximum speed. Usable rimpull will
depend upon traction available and
weight on drive wheels.

Empty Weight
Gross Machine Weight
71 400 kg (157,000 lb)
Gross Weight
0 10 20 30 40 50 60 70 80 90 100 kg x 1000

kg x lb x
0 20 40 60 80 100 120 140 160 180 200 220 lb x 1000
1000 1000
30%
28 60
Torque Converter
Drive
E L
Direct Drive
24
25%
50

1st Gear
20

Effective Grade
20%
40

(Favorable)
Rimpull

16
15%
30
12 1st Gear

20 2nd Gear
10%
8
3rd Gear
10 4th Gear 5%
4 5th Gear
6th Gear
7th Gear

0 0
0 5 10 15 20 25 30 35 40 45 50 mph

0 10 20 30 40 50 60 70 80 km/h
Speed

769D Off-Highway Truck specifications 25

Standard Equipment
Standard equipment may vary. Consult a Caterpillar Dealer for specifics.

Air horn, electric Heater/defroster 11 070 kCal (43,930 Btu)

Air line dryer Hoist lever, fingertip-actuated
Alternator, 50-amp Lighting system
Auxiliary jump start receptacle Backup light
Backup alarm Dome/courtesy light
Battery disconnect switch, ground level Hazard and directional signals, LED
Body mounting group Headlights, halogen, with dimmer
Brakes Stop/tail lights, LED
Caliper disc (front) Mirrors, right and left
Oil disc (rear) Power port, 24-volt
Parking Precleaner
Secondary QuickEvacTM System
Brake (front) disconnect switch Reservoirs (separate)
Brake heat exchanger Brake/hoist
Brake release motor for towing Steering
Cab, ROPS Transmission/torque converter
Caterpillar Contour Series air suspension seat Retarder
Coat hook Rock ejectors
Cup holder Seat belts, retractable
Insulated and sound-suppressed Seat, passenger
Radio-ready Service platform, bolt-on
Storage compartment Starting, electric
Sun visor Steering, automatic supplemental, electric
Tinted glass Steering wheel, padded, tilt, telescopic
Crankcase guard Tires, 18.00-33, radial
Diagnostic connection port, 24-volt Tow hooks, front
Driveline guard Tow pin, rear
Electrical system, 24-volt Transmission, electronically controlled automatic power shift
Electronic Monitoring System with downshift/reverse shift inhibitor, neutralizer during
Filters, spin-on dumping, neutral start switch, engine overspeed protection,
Gauges directional shift management, programmable top gear,
Actual Gear Indicator body-up shift limiter, economy shift mode and control
Air pressure throttle shifting
Brake oil temperature Vandalism protection locks
Coolant temperature Window, electric power (operator)
Fuel Windshield wipers and washer, electric intermittent
Hour meter, electric
Odometer
Speedometer
Tachometer

26 769D Off-Highway Truck specifications

Optional Equipment
With approximate changes in operating weights. Optional equipment may vary.
Consult a Caterpillar Dealer for specifics.

kg lb kg lb
Air conditioning 90 200 Spare rim (330 mm) 13" 360 800
Automatic lube system 60 135 Traction Control System (TCS) 50 110
Automatic Retarder Control (ARC) 6 13 Truck Bodies:
Clustered grease fittings 20 50 Dual slope body 7300 16,200
Engine coolant heater - 120-volt 3 7 Body liner for dual-slope body
Engine coolant heater - 240-volt 4 9 [Liner thickness - 16 mm (.063") floor,
Engine ground level shut-off 80 180 8 mm (.031") front and side walls] 3200 7,000
Ether starting aid 5 10 Flat floor body 7800 17,200
Exhaust diverter/muffler 75 170 Body liner for flat floor body
[Liner thickness - 16 mm (.063") floor,
Fuel heater kit 5 12
8 mm (.031") front and side walls] 3300 7,200
Integrated brake control 56 123
Truck Production Management
Muffler 55 120 System (TPMS) 45 100
Sound suppression package 136 300 Wheel chocks 25 50
(2000/14/EC compliant)
Wiggins fast fuel change 2 5
Wiggins high speed oil change 1 2

Weight/Payload Calculation*
(Example)

Flat Floor Dual-slope

kg lb kg lb
Empty Chassis Weight 23 000 50,600 23 000 50,600
Fuel Correction (90% × 140 gal.) 400 882 400 882
Optional Attachments Weight
Debris Allowance (4% of chassis) +920 +2024 +920 +2024
Chassis Weight 24 320 53,506 24 320 53,506

Body Weight 7800 17,200 7300 16,200

Body Attachments Weight +3300 +7200 +3200 +7000
Total Empty Operating Weight 35 420 77,906 34 820 76,706

Target Payload +35 980 +79,094 +36 580 +80 294

Gross Machine Operating Weight 71 400 157,000 71 400 157,000

*Note: Refer to Caterpillar's 10/10/20 Payload Policy for Quarry and Construction Trucks.

769D Off-Highway Truck specifications 27

769D Off-Highway Truck

For more complete information on Cat products, dealer services, and industry solutions, visit us
on the web at www.CAT.com

© 2001 Caterpillar
Printed in U.S.A.

AEHQ5440-01 (12-01) Materials and specifications are subject to change without notice.
Featured machines in photos may include additional equipment.
Replaces AEHQ5440 See your Caterpillar dealer for available options.