770G Off-Highway Truck

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770G Off-Highway Truck

In 1963, Caterpillar introduced the 769, a revolutionary off-road truck that was purpose built for the rigors of mining and heavy construction. Fifty years later, our trucks have never been better. We’ve taken the best of our rugged, dependable heritage and combined it with technologies that help our environment, make your operators more productive and dramatically improve the economics of your haul fleet. This 770G has an updated traction control system to keep you moving when the ground conditions aren’t perfect, you’ll see improvements in fuel use through new and flexible fuel saving strategies, and we’re making the operating experience best in class with automotive quality shifting, noise reduction and cab updates. Our heritage and new use of technology are combined in this truck for one purpose – the continued success of your business.

Operating Specifications

Nominal Payload Class (100%)
42.1tons
Top Speed - Loaded
45.8mph
Body Capacity (SAE 2:1)
32.9yd3
Maximum Payload Class (110%)
46.3tons
Not to Exceed Payload (120%)
50.5tons
Target Payload Capacity
42.1tons

Engine

Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1700.0RPM
Gross Power - SAE J1995
515.0hp
Net Power - SAE J1349
477.0hp
Net Power - 80/1269/EEC
489.0hp
Net Power - ISO 9249
477.0hp
Number of Cylinders
6
Bore
5.4in
Stroke
6.7in
Displacement
927.6in3
Net Power - ISO 14396
508.0hp
Net Torque - SAE J1349
1834.0ft-lb

Weights - Approximate

Target Gross Machine Operating Weight
157000.0lb
Chassis Weight
55948.0lb
Body Weight
17306.0lb
Target Gross Machine Weight
157000.0lb

Capacity - Dual Slope - 100% Fill Factor

Struck
23.01yd3
Heaped 2:1 (SAE)
32.9yd3

Capacity - Flat Floor - 100% Fill Factor

Struck
23.01yd3
Heaped 2:1 (SAE)
32.9yd3

Weight Distributions - Approximate

Front Axle - Empty
49.0%
Front Axle - Loaded
34.0%
Rear Axle - Empty
51.0%
Rear Axle - Loaded
66.0%

Transmission

Forward 1
7.4mph
Forward 2
10.1mph
Forward 3
13.8mph
Forward 4
18.5mph
Forward 5
25.1mph
Forward 6
33.8mph
Forward 7
45.8mph
Reverse
8.8mph

Final Drives

Differential Ratio
1.92:1
Planetary Ratio
4.80:1
Total Reduction Ratio
9.26:1

Brakes

Brake Surface - Front
216.0in2
Brake Surface - Rear
6235.0in2
Brake Standards
ISO 3450:1996

Service Refill Capacities

Cooling System
33.0gal
Differentials and Final Drives
47.0gal
Steering Tank
14.5gal
Steering System (Includes Tank)
23.0gal
Brake Hoist System
60.0gal
Brake/Hoist Hydraulic Tank
38.0gal
Crankcase
17.0gal
DEF Tanks
6.0gal
Fuel Tank
140.0gal
Torque Converter/Transmission System
17.0gal

Body Hoists

Pump Flow - High Idle
118.0gal/min
Relief Valve Setting - Raise
2750.0psi
Relief Valve Setting - Lower
500.0psi
Body Raise Time - High Idle
7.5Seconds
Body Lower Time - Float
10.0Seconds
Body Power Down - High Idle
10.0Seconds

Suspension

Rear Axle Oscillation
8.9Degrees
Empty Loaded Cylinder Stroke Front
9.2in
Empty Loaded Cylinder Stroke Rear
5.9in

Sound

Sound Standards
Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment.
Sound Standards
Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A).
Sound Standards
Operator Equivalent Sound Pressure Level is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used.

ROPS

FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
ROPS Standards
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.

Dimensions

Height to Top of ROPS
12.7ft
Inside Body Depth - Maximum
4.6ft
Overall Body Length
26.8ft
Inside Body Length
18.5ft
Overall Length
28.9ft
Wheelbase
13.0ft
Rear Axle to Tail
8.5ft
Ground Clearance
1.6ft
Dump Clearance
1.7ft
Loading Height - Empty
10.3ft
Overall Height - Body Raised
27.1ft
Operating Width
15.7ft
Centerline Front Tire Width
10.2ft
Engine Guard Clearance
1.8ft
Outside Body Width
12.9ft
Inside Body Width
11.9ft
Front Canopy Height
13.5ft
Rear Axle Clearance
1.8ft
Centerline Rear Dual Tire Width
8.3ft
Overall Tire Width
12.1ft

Steering

Turning Diameter - Front
57.7ft
Steering Standards
ISO 5010:2007
Steer Angle
40.5Degrees
Turning Circle Clearance Diameter
66.6ft

Tires

Standard Tire
18.00R33 (E4)

Standard Equipment

  • Electrical
    • Alarm, backup
    • Alternator, 115 ampere
    • Auxiliary jump start receptacle
    • Batteries, maintenance-free, 12V (2), 190 amp-hour
    • Electrical system, 24V
    • Lighting system: - Backup light (halogen) - Directional signals/hazard warning (front and rear LED) - Headlights, (halogen) with dimmer - Operator access courtesy lights (Developing Market Only)
  • Product Link Communications
    • Product Link Ready
  • Guards
    • Driveline
    • Engine crankcase
  • Operator Environment
    • Air conditioning
    • Ashtray and cigarette lighter
    • Coat hook
    • Cup holders (4)
    • Diagnostic connection port, 24V
    • Entertainment Radio Ready: - 5 amp converter - Speakers - Antenna - Wiring harness
    • Gauges/indicators: - Air cleaner service indicator - electronic - Brake oil temperature gauge - Coolant temperature gauge - Hour meter - Tachometer - Engine overspeed indicator - Fuel level - Speedometer with odometer - Transmission gear indicator
    • Heater/defroster (11 070 kCal/43,930 BTU)
    • Hoist lever
    • Horn, electric
    • Light - dome
    • Light - courtesy
    • Messenger, display unit
    • Mirrors
    • Power port, 12V
    • ROPS cab, insulated/sound suppressed
    • Seat, Cat Comfort Series III: - full air suspension - four point harness
    • Steering wheel, padded, tilt and telescopic
    • Storage compartment
    • Sun visor, tinted glass
    • Throttle lock
    • Windshield wiper (intermittent) and washer
  • Power Train
    • Air-To-Air Aftercooler (ATAAC)
    • Air cleaner with precleaner (1)
    • Automatic cold mode idle control
    • Electric start
    • Turbocharger
    • Braking system, hydraulic actuated: - Automatic Retarder Control (ARC) (utilizes rear oil-cooled, multiple disc brakes) - Brake release motor (towing) - Caliper-disc (front) - Oil-cooled, multiple disc (rear) - Parking - Secondary - Service
    • Transmission: - 7 speed automatic powershift - Body up shift inhibitor - Controlled throttle shifting - Directional shift management - Downshift inhibitor - Neutral start switch - Neutral coast inhibitor - Reverse shift inhibitor - Reverse neutralizer dur
  • Suspension Systems
    • Suspension, front and rear
  • Other Standard Equipment
    • Body safety pin (secures body in up position)
    • Body down indicator
    • CD ROM parts book
    • Fan, hydraulic demand
    • Fuel tank (530 L/140 gal)
    • Guard, engine compartment
    • Guard, mud
    • Ground level battery disconnect
    • Ground level engine shutdown
    • Ground level grease fittings
    • Reservoirs (separate): - Brake/converter/hoist - Steering - Transmission/torque converter
    • Rims 15 × 33
    • Rock ejectors
    • Service platform, left and right side
    • Supplemental steering (automatic)
    • Tie down eyes
    • Tow hooks (front)/Tow pin (rear)
    • Vandalism protection locks
  • Antifreeze
    • Extended Life Coolant to -35° C (-30° F)