777F ®

Off-Highway Truck

Engine Operating Specifications

®
Engine Model Cat C32 ACERT™ Nominal Payload Class 90.7 tonnes 100 tons
Gross Power – SAE J1995 758 kW 1,016 hp Body Capacity – SAE 2:1 60.2 m3 78.8 yd3
Net Power – SAE J1349 700 kW 938 hp • Refer to the Caterpillar ® 10/10/20 Payload Guidelines
Weights – Approximate for maximum gross machine weight limitations.
Target Gross Machine 163 293 kg 360,000 lb • Capacity with dual slope body.
Operating Weight
 777F Off-Highway Truck
Engineered for performance, designed for comfort, built to last.

Power Train – Engine Power Train – Transmission Structures

✔ The Cat C32 engine with ACERT™ ✔ The Cat seven-speed power shift ✔ The 777F features a mild-steel, box-
® ®

Technology uses advanced engine transmission matched with the Cat C32 section type frame, proven on the 777D
technology to reduce emissions without engine with ACERT Technology to deliver durability and long life with
after-treatment. The turbocharged, provides constant power and efficiency low operating costs. Castings and
aftercooled 12-cylinder engine has over a wide operating speed range for forgings are strategically placed in high-
higher horsepower and faster response optimal power train performance. pg. 5 stress areas to evenly distribute stresses
for superior performance in demanding and provide long fatigue life. pg. 6
applications. pg. 4

Serviceability Information & Monitoring Systems

✔ The 777F offers 500-hour engine ✔ Standard on the 777F, the Cat Messenger
service intervals – 250 hours more system provides real-time engine
than the 777D. Simplified service and performance and operating data.
maintenance features combined with The 777F also offers the optional
improved service access are designed VIMS™ Advisor monitoring system,
to reduce downtime. pg. 12 providing data for more than 250 machine
functions. pg. 13

Top Performance.
Developed specifically for mining,
quarry and construction applications,
the 777F keeps material moving at
high volume to lower cost-per ton.

Reliable, Durable, Dependable.

Rugged construction and easy
maintenance procedures ensure
long life with low operating costs.

2
 Operator’s Station Engine – Power Train Integration Brake System
✔ The 777F features an all new operator ✔ The Cat Data Link electronically ✔ Cat oil-cooled, multiple disc brakes are
station with enhanced visibility, combines engine, transmission, brake now hydraulically controlled, reducing
increased operator space and and operational information to optimize maintenance costs and improving
ergonomically designed controls that overall truck performance. Stored operator control and modulation.
set new industry standards for operator diagnostic data can be accessed via the They provide exceptional, fade-resistant
comfort. All controls and gauges are Cat Electronic Technician (Cat ET) braking and retarding for maximum
positioned for optimum efficiency service tool to improve troubleshooting performance and productivity in all
and total machine control. pg. 7 and reduce downtime. pg. 8 haul-road conditions. pg. 10

Truck Body Systems Customer Support

✔ The 777F can be configured with the ✔ Cat dealers provide unmatched
Dual Slope, X Body or Gateless Coal product support, anywhere in the world.
Body. This full line of body options With industry-best parts availability
ensures that the body is matched to and a wide range of maintenance and
specific application requirements. pg. 14 service options, Cat dealers have what
it takes to keep your hauling machines
productive. pg. 16

Safety
✔ Caterpillar sets the standard when
it comes to safety in the design and
manufacturing of heavy equipment.
Safety is not an afterthought at Caterpillar,
but an integral part of all machine and
systems designs. pg. 17

✔ New Feature

3
Power Train – Transmission
Cat power train delivers more power to the ground for greater productivity and lower
operating costs.

Mechanical Power Train. The Cat

mechanical drive power train and power
shift transmission provides unmatched
operating efficiency and control
on steep grades, in poor underfoot
conditions, and on haul roads with
high rolling resistance.
Transmission. Pairing the Caterpillar
seven-speed planetary power shift
transmission with the C32 diesel engine
with ACERT Technology delivers
constant power over a wide range of
operating speeds.
• Long Life. A dedicated transmission oil
tank and circuit provides cooler, cleaner
oil for maximum performance and
longer component life.
• Transmission Chassis Control (TCC).
TCC uses electronically transferred
engine rpm data to execute shifts at
preset points for optimum performance,
efficiency and clutch life.
Lock-Up Torque Converter. Combines
maximum rimpull and cushioned
shifting of torque converter drive with
the efficiency and performance of direct
drive. The lock-up torque converter
engages at approximately 8 km/h (5 mph),
delivering more power to the wheels.
Final Drives. Cat final drives work as a • Secondary Steering. Battery powered
• Lock-Up Clutch. Quickly releases and
system with the planetary power shift secondary steering system allows up
re-engages to reduce power train torque
transmission to deliver maximum power to three 90 degree turns in case of
loads for smoother shifting, long life
to the ground. Built to withstand the engine failure.
and a more comfortable ride.
forces of high torque and impact loads,
Wheels and Rims. Cast rear wheels and
• ECPC (Electronic Clutch Pressure double reduction final drives provide
Cat center-mount rims are mounted using
Control) System. ECPC modulates high torque multiplication to further
studs and nuts to minimize maintenance
clutch engagement individually, allowing reduce drive train stress.
and maximize durability.
for smoother speed and directional
Steering System. Hydraulic steering
shifts. ECPC provides controls for both
control system is designed for exceptional
the torque converter lock-up clutch and
smoothness and precise control.
the transmission clutches that are tailored
A separate circuit prevents cross
to each particular upshift or downshift.
contamination for long life.
This provides the operator a superior
ride and reduced fatigue.

5
Operator’s Station
Ergonomically designed for operator comfort, superior control and high productivity.

Ergonomic Layout. The 777F operator

station is ergonomically designed for
total machine control in a comfortable,
productive and safe environment.
All controls, levers, switches and gauges
are positioned to maximize productivity
and minimize operator fatigue.
New ISO Designed Cab Mounts.
Integral, sound-suppressed cab is
resiliently mounted to the frame to isolate
the operator from sound and vibration
for a quiet, secure and comfortable ride.
Viewing Area. Designed for excellent
all-around visibility and clear sight lines
to the haul road. The large viewing area,
with 100 percent more glass, enables
the operator to maneuver with confidence
for greater productivity.
Air Suspension Seat w/Three-Point
Operator Restraint. Ergonomically
designed, fully adjustable air suspension
seat with adjustable armrests provides
optimal driving comfort. A wide,
retractable 3-point seat/shoulder belt
provides a secure, comfortable restraint.
Hoist Lever. Four-position, low effort
electronic hoist control system is
positioned next to the gear selector
in the right-hand console.
When not in use, the fold-down trainer Radio Ready. Cab is prewired with
Secondary Brake Pedal. Conveniently seat creates a working surface with cup power converter, speakers, wiring
located on the floor for easy operator holder. The seat also folds up, providing harness, antenna and necessities for
control. more room for the operator. Under seat add-on communication systems.
Steering Column. Comfortable steering storage is convenient for stowing a
Multiple Power Ports. Power ports are
wheel with tilt and telescoping function lunch box.
conveniently located in three locations
provides a comfortable driving position Operator Controls. Easy to reach turn in the cab: one in the right-hand console,
for all operators. signal, high beam, intermittent windshield two behind the trainer seat, and one in
Transmission Console. Ergonomic gear wiper and windshield washer controls the dash.
shift lever with backlit gear indicators are located on the left side of the steering
Truck Production Management System
provides easy operation. The parking column, and are designed for optimum
(TPMS) (optional). TPMS provides
brake function is integrated into the efficiency and comfort.
valuable payload and cycle time data,
gear selector. Heating/Air Conditioning. Electronically which is viewed through Messenger or
Trainer Seat. The trainer seat is relocated controlled, four-speed fan and 13 vents VIMS Advisor to improve productivity.
to the left of the operator, which allows deliver temperature-controlled air
trainer to use same stairway. circulation for a comfortable working
environment in any climate. Electronic
controls reduce maintenance. More robust
air compressor offers a 25 percent
increase in capacity, greater durability
and longer life.

7
Engine – Power Train Integration
This system electronically combines critical power train components to work together more
intelligently to optimize overall truck performance.

1 Engine Control Module (ECM)

2 Sensors
3 Electronic Unit Injector (EUI)
ET 4 Integrated Braking Control (IBC)
10
5 Transmission/Chassis Control (TCC)
6 Transmission
7 Wheel Sensor
8 Brakes
4 9 CAT Data Link
10 Cat Messenger

2 9
6 8
7
1

Cat Data Link. Electronically integrates Electronic Technician (Cat ET). Cat ET Directional Shift Management.
machine computer systems to optimize service tool provides service technicians Regulates engine speed during directional
overall power train performance, with easy access to stored diagnostic data shifts to prevent damage caused by
increase reliability and component life, through the Cat Data Link to simplify high-speed directional changes.
and reduce operating costs. All control problem diagnosis and increase
Neutral Coast Inhibitor. Prevents the
modules communicate via the Cat Data machine availability.
transmission from shifting to neutral
Link and work together as an integrated
Controlled Throttle Shifting. Regulates at speeds above 6.5 km/h (4 mph),
system to maximize production efficiency
engine rpm during shifting to reduce protecting the transmission from
and extend component life.
power train stress and clutch wear by operating with insufficient lubrication.
Transmission Chassis Control (TCC). controlling engine speed, torque converter
Body-up Shift Limiter. Prevents the
TCC uses electronically transferred lock-up, and transmission clutch
transmission from shifting above a
engine rpm data to execute shifts at engagement for smoother shifts and
pre-programmed gear without the
preset points for optimum performance, longer component life.
body being fully lowered. This function
efficiency and clutch life.
is programmable via Cat Electronic
Technician (Cat ET) and Messenger
or Advisor.

8
Body-up Reverse Neutralizer. Anti-Hunt Function. This function Economy Shift Mode. Modifies engine
Automatically shifts the transmission to minimizes shifting by not allowing maps for greater fuel economy.
neutral if the hoist lever is activated while the transmission to up or down shift
Reverse Shift Inhibitor. Protects the
the transmission is shifted in reverse. immediately after a shift has occurred.
engine from abrupt directional changes
This prevents gear hunting when
Overspeed Protection. The transmission by slowing down the engine before
operating near a shift point and minimizes
control electronically senses engine shifting the transmission into reverse.
transmission shifting for increased
conditions and automatically up-shifts
component life. Cat Messenger. Critical data from the
one gear to prevent overspeeding.
engine and transmission, including
If overspeeding occurs in the top gear, Downshift Inhibitor. Prevents engine
transmission shifting, engine speed and
the lock-up clutch is disengaged, and overspeeding by keeping the transmission
fuel consumption, provides service
the brakes are applied. from downshifting until engine speed
technicians with enhanced diagnostic
reaches the downshift point.
Programmable Top Gear. Transmission capability, through Cat Messenger, to
top gear maximum can be set using ECPC Control. Both the torque converter reduce downtime and operating costs.
Cat Messenger, VIMS Advisor or the lock-up clutch and the transmission
Traction Control System (TCS) (optional).
Cat ET service tool to help the operator clutches now have software-control
TCS electronically monitors and
maintain speed limits. for clutch fill and slip characteristics
controls rear wheel slippage for greater
to provide superior smooth shifting.
traction and enhanced truck performance
in poor underfoot conditions.

9
Brake System
Reliable braking with superior control gives the operator the confidence to focus
on productivity.

Long Life. An oil film prevents direct

contact between the discs. This design
absorbs the braking forces by shearing
the oil molecules and carrying heat
away to extend brake life.
Pistons. The Caterpillar two-piece piston
design combines the service, secondary,
parking brake and retarding functions
in the same system. The primary piston
hydraulically actuates both service and
retarding functions. The secondary
piston is spring-applied and held in
the disengaged position by hydraulic
pressure. If hydraulic system pressure
drops below a specified level, the
spring-applied secondary piston
automatically applies the brakes.
Parking Brake. Oil-cooled, spring-
applied, hydraulically released parking
brake is applied to the rear wheels for
superior parking capability on all grades
up to 15 percent.
Four Corner Retarding. Four corner
retarding with 60/40 percent split
(rear/front) in braking effort provides
superior control in slippery conditions.
Balanced front to rear brake torque
provides exceptional braking performance
and minimizes wheel lock-up, especially
during retarding.
Integrated Braking System. The Cat Extended Life Disc Brakes (optional).
oil-cooled braking system delivers Extended life friction material has double
reliable performance and control in the wear life of standard brakes and is
the most extreme haul-road conditions. twice as resistant to glazing for more
The integrated system combines the consistent braking power with less noise.
service, secondary, parking brake and
Brake Design. Cat oil-cooled disc brakes
retarding functions in the same system
are designed with large discs and plates
for optimum braking efficiency.
for reliable, adjustment-free operation
Oil-Cooled Multiple Disc Brakes. and performance. Brakes are completely
Caterpillar hydraulically controlled enclosed and sealed to prevent
four-wheel, forced oil-cooled, multiple contamination and reduce maintenance.
disc service brakes are continuously
cooled for exceptional, non-fade
braking and retarding performance.

10
 ARC 1 Service Brake Sensor TCS
1 2 2 Engine Sensor
3 ARC
4 ARC Switch
5 Brakes
6 Service Brakes 6
7 Axle Speed Sensor
8 TCS 7

8
3
7

5 6

Automatic Retarder Control (ARC). • Superior Control. Automatic brake Traction Control System (TCS) (optional).
Standard ARC electronically controls modulation offers a smoother ride and Electronically monitors and controls
braking on grade to maintain engine at better control in slippery conditions, rear wheel slippage for greater traction
approximately 1,950 rpm (adjustable from allowing the operator to concentrate and enhanced truck performance in poor
1,850-1,950 rpm. ARC is deactivated on driving. underfoot conditions. If slippage exceeds
when the operator applies the brakes a set limit, the oil-cooled disc brakes
• Ease of Operation. ARC increases
or throttle. engage to slow the spinning wheel.
operating ease, resulting in greater
2500
Torque is then automatically transferred
operator confidence with less fatigue.
to the wheel with better traction.
2000 • Engine Overspeed Protection.
Differential Action. Normal differential
Automatically activates ARC when
Engine Speed (rpm)

action provides superior maneuvering

1500 engine speed exceeds factory preset
and control in slippery conditions.
levels, regardless of operator inputs,
to avoid potentially damaging engine Compression Brake (optional). Optional
1000
overspeeds. Compression Brake is integrated with
Automatic Retarder Control (ARC)
500 to provide up to 35 percent higher
0 10 20 30 40 50 60 70
downhill travel speed and reduce wear
Time (Seconds) on brake components.

With Automatic Retarder Control

(average speed, 1950 rpm)
With Manual Retarder Control
(average speed, 1730 rpm)

• Faster Speeds. ARC allows the operator

to maintain optimum engine speeds for
up to 15 percent faster downhill hauls
and greater productivity.

11
Truck Body Systems
Cat designed and built for rugged performance and reliability in the toughest hauling
applications.

• Cat X Body. The X Body is an

upgrade of the Dual Slope in that
it incorporates the latest structural
designs and can be configured with a
variety of 450 BHN steel liner options
to meet the specific requirements of
the mine. The flat floor design offers
reduced wear and better material
ejection. Like the Dual Slope – the
X Body is designed for durability first.

• Gateless Coal Body. This specialized

Cat Truck Bodies. Matching the truck Body Options high volume body, available in several
body to the application is a critical part of sizes, is targeted at dedicated coal
achieving the best value from your 777F. haulage applications with minimal
Caterpillar offers a variety of application impact. It eliminates the tailgate
specific body options. The Caterpillar with a kicked up floor design that
exclusive 10/10/20 payload guidelines gives the volume required to meet
help achieve a balance of excellent target payload.
payload with safe operation.
Custom Body Options. A variety of
options, including tail extensions and
• Dual Slope Body. The original
sideboards, are available to maintain
standard body, the Dual Slope body,
rated payload, reduce spillage and
provides excellent load retention,
improve hauling efficiencies.
maintains a low center of gravity
with optimum load distribution, Body/Chassis Integration. Cat Truck
reduces shock loading and is available Body Systems are designed and matched
with 400 BHN steel liners or rubber with the integrated chassis system for
liners. The Dual Slope body is optimum structural reliability, durability
intended for tough applications and long life.
including greenfield sites and
contractor miners.

14
Electronic Hoist Control. Provides the
operator with better control of the load
when dumping, including over-center
load control and modulated control
throughout the operating range.
The automatic body snubbing feature
reduces impact on the frame, hoist
cylinders and operator.
Fast Hoist Cycle Times. Two-stage hoist
cylinders provide fast dump cycle times
of 15 seconds for raise and 13 seconds
for lower.
Body Liners. Two liner options are
available to help extend body system life.
All steel liner wear surfaces are equipped
with 400 BHN steel to handle tough
impact loads while resisting abrasion.
An optional rubber liner delivers long
life in high-wear applications and
improved operator comfort during loading.

Target Payload Strategy. Your Cat dealer

can help you manage to target payload • Overloading causes excessive wear Matched Systems. Designed to work
to maximize equipment use, ensure safe on vehicle components, such as as an optimum pass/match system,
operation, increase productivity and brakes, tires and drive train, reducing the 777F is best sized to match the
lower cost-per-ton. component life and increasing ®
Cat 992K Wheel Loader, with a four
• Underloading increases costs due to maintenance costs and repairs. to five pass/match, and the 993K Wheel
lost payloads, underutilizes equipment, Loader with four pass/match.
and increases cost-per-ton.

15
Customer Support
Cat dealers have what it takes to keep trucks productive.

Commitment Makes the Difference.

Cat® dealers offer a wide range of
solutions, services and products that help
you lower costs, enhance productivity
and manage your operation more
efficiently. Support goes far beyond
parts and service. From the time you
select a piece of Cat equipment until
the day you rebuild, trade or sell it,
the support you get from your Cat dealer
makes the difference that counts.
Dealer Capability. Cat dealers provide
the level of support you need, on a
global scale. Dealer expert technicians
have the knowledge, experience, training
and tooling necessary to handle your
repair and maintenance needs, when
and where you need them.
Product Support. Cat dealers believe
superior products deserve superior
support. When Cat products reach the
field, they are supported by a worldwide
network of parts distribution facilities,
dealer service centers, and technical
training facilities to keep your equipment
up and running. Cat customers rely on
prompt, dependable parts availability
and expertise through our global dealer
network, ready to meet your needs 24/7.
Service Support. Every piece of Cat speeds, haul road design and maintenance. Technology Products. Cat dealers offer
equipment is designed and built to To optimize total cost of ownership and a range of advanced technology products,
provide maximum productivity and productivity, your Cat dealer can provide such as VIMS™ monitoring system and
operating economy throughout its you with a fundamental understanding MineStar™ information management
working life. Cat dealers offer a wide of the effects application characteristics system. These products include radio data
range of service plans that will maximize and operating techniques have on communications, machine monitoring
uptime and return on your investment, maintenance and operating costs. and diagnostics, fleet management, and
including:
haul road maintenance software – all
Operation. With today’s complex
• Preventive Maintenance Programs designed to improve fleet efficiency,
products, equipment operators must
increase productivity, and lower costs.
• Diagnostic Programs, such as have a thorough understanding of
Scheduled Oil Sampling and machine systems and operating www.cat.com. For more complete
Technical Analysis techniques to maximize efficiency and information on Cat products, dealer
profitability. Your Cat dealer can arrange services, and industry solutions, visit us
• Rebuild and Reman Options training programs to help operator’s on the web at www.cat.com.
• Customer Support Agreements improve productivity, decrease downtime,
reduce operating costs, enhance safety,
Application Awareness. Operating and and improve return on the investment
maintenance costs are influenced by you make in Cat products.
many application and site-specific
factors, such as material density,
loading position, payload, grades,

16
Safety
Cat machines and systems are designed with safety as the first priority.

Product Safety. Caterpillar has been and

continues to be proactive in developing
machines that meet or exceed safety
standards. Safety is an integral part
of all machine and systems designs.
Integral ROPS Cab. Resiliently mounted
to the frame to reduce vibration and
sound, the integral ROPS structure,
which provides “five-sided protection”
for the operator, is designed as an
extension of the truck frame.
Payload Guidelines. Safety is integral to
maintaining the highest productivity in
mining machine operation. Caterpillar
10/10/20 payload guidelines provide a
reference for managing payloads.
WAVS Camera (optional). An optional
rear vision camera system provides
visibility to the rear of the machine
through an LCD monitor in the cab.
The monitor can be set to activate only
when the truck is in reverse, and the
display is equipped with a sensor to
detect ambient light, which automatically
brightens or dims the display.
High Intensity Discharge (HID) Lights
(optional). Thirty-five Watt HID lights
can replace the standard high beam
65 Watt Halogen lights. The powerful
HID lights are almost two times brighter Steering System. A twin, double-acting A stairway lamp illuminates the cab
and 50 percent more efficient, improving cylinder steering system is designed to access stairs and can be activated at
night time visibility. deliver precise control under all loading ground level during entry and shut off
and underfoot conditions. The steering with a switch in the cab.
Brake Systems. Four corner oil-cooled
hydraulic system is separate from the
braking system provides excellent control Standard Safety Features.
main hydraulic system to prevent cross-
in slippery conditions. The service brakes • Slip resistant surfaces
contamination and overheating.
and retarding system are actuated by
modulated hydraulic pressure, while Engine Shutoff Switch. A secondary • 75 mm (3 in) wide orange three-
secondary and parking brake functions engine shutoff switch is located at point operator restraint
are spring applied and hydraulic released. ground level.
• Heated, wide-angle mirrors
This reliable and durable system ensures
Electrical System Disconnect. A battery
braking in the event of complete hydraulic • Body raised indicator
disconnect switch, located directly above
failure. Either the parking or secondary • Guard rails
the front bumper, provides ground-level
brake systems on this truck will hold it
lockout of the electrical system.
on a grade up to 15 percent while carrying • Reverse neutralizer when dumping
a rated load. Ladder/Secondary Egress. Wide
• Low interior sound level
stationary stairways and platforms
on both sides of the machines, allow • Service platform level transmission,
easy ingress and egress. hoist and steering disable switch
• Service platform level starter
disable switch

17
Engine Transmission

Engine Model Cat® C32 ACERT™ Forward 1 10.5 km/h 6.5 mph
Gross Power – SAE J1995 758 kW 1,016 hp Forward 2 14.3 km/h 8.9 mph
Net Power – SAE J1349 700 kW 938 hp Forward 3 19.3 km/h 12 mph
Net Power – ISO 9249 700 kW 938 hp Forward 4 26.1 km/h 16.2 mph
Net Power – 80/1269/EEC 700 kW 938 hp Forward 5 35.4 km/h 22 mph
Number of Cylinders 12 Forward 6 47.6 km/h 29.6 mph
Peak Torque 4716 N·m 3,478 lb ft Forward 7 64.5 km/h 40.1 mph
Bore 145 mm 5.7 in Reverse 12.1 km/h 7.5 mph
Stroke 162 mm 6.4 in • Maximum travel speeds with standard 27.00R49 (E4) tires.
Displacement 32.1 L 1,959 in3
• Power ratings apply at 1,750 rpm when tested under the
specified condition for the specified standard. Final Drives
• Ratings based on SAE J1995 standard air conditions of 25° C
(77° F) and 100 kPa (29.61 Hg) barometer. Power based on Differential Ratio 2.74:1
fuel having API gravity of 35 at 16° C (60° F) and an LHV of Planetary Ratio 7.00:1
42 780 kJ/kg (18,390 BTU/lb) when engine is used at 30° C Total Reduction Ratio 19.16:1
(86° F).
• No engine derate to 3658 m (12,000 ft) altitude.
• Compliant with U.S. Environmental Protection Agency Tier 2 Brakes
and European Union Stage II emissions standards.
Brake Surface – Front 40 225 cm2 6,235 in2
Brake Surface – Rear 102 116 cm2 15,828 in2
Weights – Approximate Brake Standards ISO 3450: 1996
• Target Gross Machine Operating Weight is 163 293 kg
Target Gross Machine 163 293 kg 360,000 lb (360,000 lb).
Operating Weight
Chassis Weight 48 008 kg 105,839 lb
Body Weight 16 420 kg 36,200 lb Body Hoists
• Chassis weight with 100% fuel, hoist, body mounting group,
rims and tires. Pump Flow – High Idle 492 L/min 130 gal/min
• Body weight varies depending on how body is equipped. Relief Valve Setting – Raise 18 950 kPa 2,750 psi
Relief Valve Setting – Lower 3450 kPa 500 psi
Body Raise Time – High Idle 15 Seconds
Operating Specifications Body Lower Time – Float 13 Seconds
Body Power Down – High Idle 13 Seconds
Nominal Payload Class 90.7 tonnes 100 tons
Body Capacity – SAE 2:1 60.2 m3 78.8 yd3
Top Speed – Loaded 64.5 km/h 40.1 mph Capacity – Dual Slope – 100% fill factor
• Refer to the Caterpillar 10/10/20 Payload Guidelines
for maximum gross machine weight limitations. Struck 41.9 m3 54.8 yd3
Heaped 2:1 (SAE) 60.2 m3 78.8 yd3
• Capacity with dual slope body.

Weight Distributions – Approximate

Front Axle – Empty 45%

Front Axle – Loaded 33%
Rear Axle – Empty 55%
Rear Axle – Loaded 67%

18 777F Off-Highway Truck specifications

Suspension ROPS

Effective Cylinder Stroke – Front 319 mm 12.6 in ROPS/FOPS Standards

Effective Cylinder Stroke – Rear 165 mm 6.5 in • ROPS (Rollover Protective Structure) for cab offered
Rear Axle Oscillation 5.4º by Caterpillar meets ISO 3471:1994 ROPS criteria.
• FOPS (Falling Objects Protective Structure) meets
ISO 3449:1992 Level II FOPS criteria.
Service Refill Capacities

Fuel Tank 1136 L 300 gal Sound

Cooling System 232 L 61 gal
Crankcase 114 L 30 gal Sound Standards
Differentials and Final Drives 264 L 70 gal • The operator sound pressure level measured according to
Steering Tank 30 L 8 gal ANSI/J919 APR95 is 76 dB(A) for cab offered by Caterpillar,
Steering System (Includes Tank) 57 L 15 gal when properly installed, maintained and tested with doors
Torque Converter/Brake/ 189 L 50 gal and windows closed, engine speed at high idle, and fan at
Hoist Hydraulic Tank medium setting.
Torque Converter/Brake/ 504 L 133 gal • The exterior sound pressure level for the standard machine
Hoist System (Includes Tank) measured at a distance of 15 m (49 ft) according to the test
Transmission Sump Tank 47 L 12 gal procedures specified in SAE J88 APR95, mid-gear moving
operation is 84 dB(A).
Transmission System 246 L 65 gal
(Includes Sump Tank) • 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 a noisy environment.
Tires

Standard Tire 27.00R49 (E4)

Steering
• Productive capabilities of the 777F truck are such that,
under certain job conditions, TKPH (TMPH) capabilities of Steering Standards SAE J1511 FEB94
standard or optional tires could be exceeded and, therefore, ISO 5010:1992
limit production. Steer Angle 30.5º
• Caterpillar recommends the customer evaluate all job Turning Diameter – Front 25.3 m 83 ft
conditions and consult the tire manufacturer for proper Machine Clearance 28.4 m 93.2 ft
tire selection. Turning Diameter
• Target Gross Machine Operating Weight is 163 293 kg
(360,000 lb).

777F Off-Highway Truck specifications 19

Dimensions
All dimensions are approximate.

12

3
11 14

13
10

1 15
9
16

17
8
7

5 6

18

19

20

21

1 Height to top of ROPS 4715 mm 15 ft 6 in 12 Operating Width 6494 mm 21 ft 4 in

2 Overall Body Length 9830 mm 32 ft 3 in 13 Centerline Front Tire Width 4170 mm 13 ft 8 in
3 Inside Body Length 6580 mm 21 ft 7 in 14 Engine Guard Clearance 864 mm 2 ft 10 in
4 Overall Length 10 535 mm 34 ft 7 in 15 Overall Canopy Width 6050 mm 19 ft 10 in
5 Wheelbase 4560 mm 15 ft 16 Outside Body Width 5524 mm 18 ft 2 in
6 Rear Axle to Tail 3062 mm 10 ft 1 in 17 Inside Body Width 5200 mm 17 ft 1 in
7 Ground Clearance 896 mm 2 ft 11 in 18 Front Canopy Height 5170 mm 17 ft
8 Dump Clearance 965 mm 3 ft 2 in 19 Rear Axle Clearance 880 mm 2 ft 11 in
9 Loading Height – Empty 4380 mm 14 ft 4 in 20 Centerline Rear Dual 3576 mm 11 ft 9 in
10 Inside Body Depth – Max 1895 mm 6 ft 3 in Tire Width
11 Overall Height – Body Raised 10 325 mm 33 ft 11 in 21 Overall Tire Width 5223 mm 17 ft 2 in

20 777F Off-Highway Truck specifications

Weight/Payload Calculation
(Example)

Dual Slope
Steel Liner Rubber Liner
No Liner (16 mm) (102 mm)
Target Gross Machine Weight* 163 293 kg 360,000 lb 163 293 kg 360,000 lb 163 293 kg 360,000 lb
Empty Chassis Weight* 48 008 kg 105,839 lb 48 008 kg 105,839 lb 48 008 kg 105,839 lb
Body Weight 16 420 kg 36,200 lb 16 420 kg 36,200 lb 16 420 kg 36,200 lb
Body Liner — — 5767 kg 12,714 lb 6766 kg 14,914 lb
Empty Machine Weight 64 428 kg 142,039 lb 70 195 kg 154,753 lb 71 194 kg 156,953 lb

Attachments** — — — — — —
Fuel Tank Size 1136 L 300 gal 1136 L 300 gal 1136 L 300 gal
Fuel Tank – 90% fill 861 kg 1,898 lb 861 kg 1,898 lb 861 kg 1,898 lb
Debris Allowance 1921 kg 4,234 lb 1921 kg 4,234 lb 1921 kg 4,234 lb
Empty Operating Weight** 67 210 kg 148,173 lb 72 977 kg 160,885 lb 73 976 kg 163,085 lb
Target Payload* 96 083 kg 211,827 lb 90 316 kg 199,115 lb 89 317 kg 196,915 lb
Target Payload* 96.1 tonnes 105.9 tons 90.3 tonnes 99.5 tons 89.3 tonnes 98.5 tons

* Refer to Caterpillar Mining Trucks Payload Guidelines

** Includes weight of all attachments

777F Off-Highway Truck specifications 21

Gradeability/Speed/Rimpull

To determine gradeability performance: Read from gross horizontally to the curve with the highest obtainable gear, then
weight down to the percent of total resistance. Total resistance down to maximum speed. Usable rimpull will depend upon
equals actual percent grade plus 1% for each 10 kg/t (20 lb/ton) traction available and weight on drive wheels.
of rolling resistance. From this weight-resistance point, read

Direct Drive
Torque Converter Drive
E – Typical Field Empty Weight
L – Target Gross Machine Operating Weight 163 293 kg (360,000 lb)

Gross Weight
0 50 100 150 200 250 300 350 400 lb x 1000

0 20 40 60 80 100 120 140 160 180 200 kg x 1000

lb x kg x
1000 1000
70
150 E L
65
140
130 60

120 55
1st Gear 30%
110 50

(Grade plus Rolling)

100

Total Resistance
45
25%
90
40
Rimpull

80
35 20%
70
30
60 1st Gear 15%
25
50
20 2nd Gear
40 10%
15 3rd Gear
30
4th Gear
20 10 5th Gear 5%
6th Gear
10 5 Torque Converter Drive 7th Gear
Direct Drive
0 0
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 mph
Speed

22 777F Off-Highway Truck specifications

Retarding Performance

To determine retarding performance: Add lengths of all cooling capacity. The following charts are based on these
downhill segments and, using this total, refer to proper conditions: 32° C (90° F) ambient temperature, at sea level,
retarding chart. Read from gross weight down to the percent with 27.00 R49 tires.
effective grade. Effective grade equals actual % grade minus NOTE: Select the proper gear to maintain engine rpm at the highest
1% for each 10 kg/t (20 lb/ton) of rolling resistance. From this possible level, without overspeeding the engine. If cooling oil
weight-effective grade point, read horizontally to the curve overheats, reduce ground speed to allow transmission to shift to
with the highest obtainable gear, then down to maximum the next lower speed range.
descent speed brakes can properly handle without exceeding

With ARC Only

ARC and Engine Brake
E – Typical Field Empty Weight
L – Target Gross Machine Operating Weight 163 293 kg (360,000 lb)

Gross Weight
0 50 100 150 200 250 300 350 400 450 500 lb x 1000

0 30 60 90 120 150 180 210 240 kg x 1000

30%
25%

E L

(Grade Minus Rolling Resistance)

20%

Effective Grade
1st Gear

15%
2nd Gear

3rd Gear 10%

4th Gear

5th Gear
6th Gear 5%
7th Gear

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

0 5 10 15 20 25 30 35 40 45 50 mph
Speed
Continuous Grade Length

777F Off-Highway Truck specifications 23

Retarding Performance

With ARC Only

ARC and Engine Brake
E – Typical Field Empty Weight Gross Weight
L – Target Gross Machine Operating 0 50 100 150 200 250 300 350 400 450 500 lb x 1000
Weight 163 293 kg (360,000 lb)
0 30 60 90 120 150 180 210 240 kg x 1000
30%

(Grade Minus Rolling Resistance)

25%

E L
1st Gear 20%

Effective Grade
2nd Gear
15%
3rd Gear
4th Gear
5th Gear 10%
6th Gear
7th Gear
5%

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

0 5 10 15 20 25 30 35 40 45 50 mph
Speed
Grade Distance — 450 m (1,500 ft.)

With ARC Only

ARC and Engine Brake
E – Typical Field Empty Weight Gross Weight
L – Target Gross Machine Operating 0 50 100 150 200 250 300 350 400 450 500 lb x 1000
Weight 163 293 kg (360,000 lb)
0 30 60 90 120 150 180 210 240 kg x 1000
30%
(Grade Minus Rolling Resistance)

25%
E L
20%
1st Gear
Effective Grade

2nd Gear
15%
3rd Gear
4th Gear
10%
5th Gear
6th Gear
7th Gear
5%

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

0 5 10 15 20 25 30 35 40 45 50 mph
Speed
Grade Distance — 600 m (2,000 ft.)

24 777F Off-Highway Truck specifications

Retarding Performance

With ARC Only

ARC and Engine Brake
E – Typical Field Empty Weight Gross Weight
L – Target Gross Machine Operating 0 50 100 150 200 250 300 350 400 450 500 lb x 1000
Weight 163 293 kg (360,000 lb)
0 30 60 90 120 150 180 210 240 kg x 1000
30%

(Grade Minus Rolling Resistance)

25%

E L
20%
1st Gear

Effective Grade
2nd Gear 15%

3rd Gear
4th Gear 10%
5th Gear
6th Gear
7th Gear
5%

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

0 5 10 15 20 25 30 35 40 45 50 mph
Speed
Grade Distance — 900 m (3,000 ft.)

With ARC Only

ARC and Engine Brake
E – Typical Field Empty Weight Gross Weight
L – Target Gross Machine Operating 0 50 100 150 200 250 300 350 400 450 500 lb x 1000
Weight 163 293 kg (360,000 lb)
0 30 60 90 120 150 180 210 240 kg x 1000
30%
(Grade Minus Rolling Resistance)

25%
E L
20%
Effective Grade

1st Gear

2nd Gear 15%

3rd Gear
4th Gear 10%
5th Gear
6th Gear
7th Gear 5%

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

0 5 10 15 20 25 30 35 40 45 50 mph
Speed
Grade Distance — 1500 m (5,000 ft.)

777F Off-Highway Truck specifications 25

Standard Equipment
Standard equipment may vary. Consult your Cat dealer for details.

OPERATOR ENVIRONMENT POWER TRAIN

Air conditioning Cat® C32 Engine with ACERT™ Technology
Ashtray and cigarette lighter 12–cylinder diesel
Coat hook Air-to-Air Aftercooler (ATAAC)
Cup holders (4) Air cleaner with precleaner (2)
Diagnostic connection port, 24V Automatic cold mode idle control
Entertainment Radio Ready Electric priming pump
5 amp converter Electric cold weather starter (2 starters, 4 batteries)
Speakers Ether starting aid
Antenna Exhaust, body heat
Wiring harness Fuel filter/water separator
Gauges/indicators: QuickEvac™ System with engine prelube
Air cleaner service indicator Turbocharger (2)
Brake oil temperature gauge Braking system:
Coolant temperature gauge Automatic Retarder Control (ARC)
Engine overspeed indicator Brake release motor (towing)
Fuel level Manual retarder
Hour meter Oil-cooled, multiple disc (front/rear)
Speedometer/odometer Transmission:
Tachometer 7–speed automatic powershift w/Electronic
Transmission gear indicator Clutch Pressure Control (ECPC)
Heater/defroster, (11 070 kCal/43,930 BTU) Body up shift inhibitor
Hoist lever Controlled throttle shifting
Horn Directional shift management
Light, dome/courtesy Downshift inhibitor
Load counter, automatic Neutral start switch
Messenger display unit Neutral coast inhibitor
Mirrors, heated (left/right) Reverse shift inhibitor
Power port, 24V and 12V (2) Reverse neutralizer during dumping
ROPS cab, insulated/sound suppressed Programmable top gear selection
Seat, Caterpillar Comfort
Full air suspension ANTIFREEZE
Retractable, 3-point seat belt with shoulder harness Extended Life Coolant to –35° C (–30° F)
Seat, training with lap belt
Steering wheel, padded, tilt and telescopic ELECTRICAL
Storage compartment Alarm, backup
Sun visor, tinted glass Alternator, 95-amp
Throttle lock Auxiliary jump start receptacle
Window, hinged access Batteries, maintenance-free, 12V (4), 190 amp-hour
Windshield wiper (intermittent) and washer Electrical system, 25-amp, 24V to 12V converter
Lighting system:
Backup light (halogen)
Directional signals/hazard warning, (front/rear LED)
Headlights (8), halogen with dimmer
Operator access courtesy lights
Side profile lights
Stop/tail lights LED
MineStar™ Ready
Product Link Ready

26 777F Off-Highway Truck specifications

Standard Equipment
Standard equipment may vary. Consult your Cat dealer for details.

GUARDS OTHER STANDARD EQUIPMENT

Engine crankcase Body mounting group
Driveline Body safety pin (secures body in up position)
Fan and Air Conditioning Body down indicator
CD-ROM parts book
SUSPENSION SYSTEM Center mounted rims
Suspension, rear (European Union compliant) Direct drive fan
Fuel tank, 1136 L (300 gal)
Fast fuel system, pressurizing
Ground level battery disconnect
Ground level engine shutdown
Ground level grease fittings
Rims, 19.5 * 49 in
Rock ejectors
Service platform level engine start/disable switch
Service platform level transmission, hoist and
steering disable switch
Supplemental steering (automatic)
Tie down eyes
Tow hooks, front
Tow pin, rear
Vandalism protection locks

Optional Equipment
Optional equipment may vary. Consult your Cat dealer for details.

Body, Gateless Coal Muffler, Full Time

Body, X Muffler, Adjustable Exhaust Diverter
Body Liner, Dual Slope, Steel, 16 mm Oil Renewal System (ORS)
Body Liner, Dual Slope, Rubber, 102 mm Product Link
Cat Compression Brake Road Analysis Control (RAC)
Automatic Lubrication System Variable Speed Fan, Rockford
Clustered Grease Fittings Traction Control System (TCS)
Engine Coolant Heater Truck Production Management System (TPMS)
Extended Life Disc Brakes VIMS™ Monitoring System
Fast Fuel System, Non-pressurizing Visibility Package, Perimeter
Front Dry Brakes Camera, Rear Vision
Fuel Heater Wheel Chocks
Fuel Tank, 1325 L (350 gal) Wiggins High Speed Oil Change
HID Lights Wiggins Service Center
Hoist Control

777F Off-Highway Truck specifications 27

777F Off-Highway Truck

For more complete information on Cat products, dealer services,

and industry solutions, visit us on the web at www.cat.com

© 2010 Caterpillar
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 Cat dealer for available options.

CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, “Caterpillar Yellow”

AEHQ5749-02 (7-10) and the “Power Edge” trade dress, as well as corporate and product identity used
Replaces AEHQ5749-01 herein, are trademarks of Caterpillar and may not be used without permission.