770G Off-Highway Truck

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.

Engine Model
Cat® C15 ACERT™
Wheelbase
13.0 ft
Ground Clearance
1.6 ft
Note (2)
Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection.

Engine

Engine Model
Cat® C15 ACERT™
Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1700r/min
Gross Power - SAE J1995
515HP
Net Power - SAE J1349
477HP
Net Power - 80/1269/EEC
489HP
Net Power - ISO 9249
477HP
Number of Cylinders
6
Bore
5.4in
Stroke
6.7in
Displacement
927.6in²
Net Power - ISO 14396
508HP
Net Torque - SAE J1349
1834ft·lbf
Note (1)
Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Note (3)
No engine derating required up to 3000 m (9,843 ft) altitude.
Note (4)
Meets U.S. Environmental Protection Agency Tier 4 and European Union Stage IV emission standards.

Dimensions

Wheelbase
13.0ft
Ground Clearance
1.6ft
Wheel Base
13ft
Ground Clearance
1.6ft
Height - 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
Rear Axle - Tail
8.5ft
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 of Rear Dual Tire Width
8.3ft
Overall Tire Width
12.1ft

Tires

Note (2)
Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection.
Standard Tire
18.00R33 (E4)
Note (1)
Productive capabilities of the 770G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Note (2)
Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection.

Operating Specifications

Nominal Payload Class (100%)
42.1ton (US)
Top Speed - Loaded
45.8mile/h
Body Capacity - SAE 2:1
32.9yd²
Maximum Payload Class (110%)
46.3ton (US)
Not to Exceed Payload (120%)
50.5ton (US)
Target Payload Capacity
42.1ton (US)
Note (1)
Refer to the Caterpillar 10/10/20 Overload Policy for maximum gross machine weight limitations.
Note (2)
Capacity with dual slope body with no liner.

Weights - Approximate

Target Gross Machine Operating Weight
157000lb
Chassis Weight
55948lb
Body Weight
17306lb
Target Gross Machine Weight
157000lb
Note (1)
Chassis weight with 100% fuel, hoist, body mounting group, rims and tires.
Note (2)
Body weight is the standard dual slope body with no liner and will vary depending on configuration.

Capacity - Dual Slope - 100% Fill Factor

Struck
23.01yd²
Heaped 2:1 (SAE)
32.9yd²

Capacity - Flat Floor - 100% Fill Factor

Struck
23.01yd²
Heaped 2:1 (SAE)
32.9yd²

Weight Distributions - Approximate

Front Axle - Empty
49%
Front Axle - Loaded
34%
Rear Axle - Empty
51%
Rear Axle - Loaded
66%

Transmission

Forward - 1
7.4mile/h
Forward - 2
10.1mile/h
Forward - 3
13.8mile/h
Forward - 4
18.5mile/h
Forward - 5
25.1mile/h
Forward - 6
33.8mile/h
Forward - 7
45.8mile/h
Reverse
8.8mile/h
Note
Maximum travel speeds with standard 18.00R33 (E4) tires.

Final Drives

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

Brakes

Brake Surface - Front
216in²
Brake Surface - Rear
6235in²
Brake Standards
ISO 3450:1996
Note
Target gross machine operating weight is 71 214 kg (157,000 lb).

Service Refill Capacities

Cooling System
33gal (US)
Differential - Final Drives
47gal (US)
Steering Tank
14.5gal (US)
Steering System - Including Tank
23gal (US)
Brake Hoist System
60gal (US)
Brake/Hoist Hydraulic Tank
38gal (US)
Crankcase
17gal (US)
DEF Tank
6gal (US)
Fuel Tank
140gal (US)
Torque Converter - Transmission System
17gal (US)

Body Hoists

Pump Flow - High Idle
118gal/min
Relief Valve Setting - Raise
2750psi
Relief Valve Setting - Lower
500psi
Body Raise Time - High Idle
7.5s
Body Lower Time - Float
10s
Body Power Down - High Idle
10s

Suspension

Rear axle - Oscillation
8.9°
Empty Loaded Cylinder Stroke Front
9.2in
Empty Loaded Cylinder Stroke Rear
5.9in

Sound

Sound Standards (1)
Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment.
Sound Standards (2)
Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A).
Sound Standards (3)
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.

Steering

Turning Diameter - Front
57.7ft
Steering Standards
ISO 5010:2007
Steer Angle
40.5°
Turning Circle - Clearance Diameter
66.6ft
Note
Target gross machine operating weight is 71 214 kg (157,000 lb).

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 during dumping
      – Programmable top gear selection
  • 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)

Optional Equipment:

  • Optional Equipment
    • Extended Life Brake Discs
    • Cat Engine Brake
    • Body heat/diverter box
    • Four (4) batteries
    • HID lights
    • Product Link
    • Backup alarm
    • Heated mirrors
    • Fuel heater
    • Ether aid
    • Coolant heater
    • Auto lube
    • Rear vision camera (WAVS)
    • Spare rims
    • Wheel chocks
    • Body sideboards
    • Traction Control System