770G Off-Highway Truck

Overview
Engine Model
Cat® C15 ACERT™
Wheelbase
13 ft
Ground Clearance
2 ft

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

Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1,700 r/min
Gross Power - SAE J1995
515 HP
Net Power - SAE J1349
477 HP
Net Power - 80/1269/EEC
489 HP
Net Power - ISO 9249
477 HP
Number of Cylinders
6
Bore
5 in
Stroke
7 in
Displacement
928 in²
Net Power - ISO 14396
508 HP
Net Torque - SAE J1349
1,834 ft·lbf
Engine Model
Cat® C15 ACERT™
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 ft
Ground Clearance
2 ft
Height - Top of ROPS
13 ft
Inside Body Depth - Maximum
5 ft
Overall Body Length
27 ft
Inside Body Length
19 ft
Overall Length
29 ft
Rear Axle - Tail
9 ft
Dump Clearance
2 ft
Loading Height - Empty
10 ft
Overall Height - Body Raised
27 ft
Operating Width
16 ft
Centerline Front Tire Width
10 ft
Engine Guard Clearance
2 ft
Outside Body Width
13 ft
Inside Body Width
12 ft
Front Canopy Height
14 ft
Rear Axle - Clearance
2 ft
Centerline of Rear Dual Tire Width
8 ft
Overall Tire Width
12 ft
Wheel Base
13 ft
Ground Clearance
2 ft

Operating Specifications

Nominal Payload Class (100%)
42 ton (US)
Top Speed - Loaded
46 mile/h
Body Capacity - SAE 2:1
33 yd²
Maximum Payload Class (110%)
46 ton (US)
Not to Exceed Payload (120%)
51 ton (US)
Target Payload Capacity
42 ton (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
157,000 lb
Chassis Weight
55,948 lb
Body Weight
17,306 lb
Target Gross Machine Weight
157,000 lb
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 yd²
Heaped 2:1 (SAE)
33 yd²

Capacity - Flat Floor - 100% Fill Factor

Struck
23 yd²
Heaped 2:1 (SAE)
33 yd²

Weight Distributions - Approximate

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

Transmission

Forward - 1
7 mile/h
Forward - 2
10 mile/h
Forward - 3
14 mile/h
Forward - 4
19 mile/h
Forward - 5
25 mile/h
Forward - 6
34 mile/h
Forward - 7
46 mile/h
Reverse
9 mile/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
216 in²
Brake Surface - Rear
6,235 in²
Brake Standards
ISO 3450:1996
Note
Target gross machine operating weight is 71 214 kg (157,000 lb).

Service Refill Capacities

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

Body Hoists

Pump Flow - High Idle
118 gal/min
Relief Valve Setting - Raise
2,750 psi
Relief Valve Setting - Lower
500 psi
Body Raise Time - High Idle
8 s
Body Lower Time - Float
10 s
Body Power Down - High Idle
10 s

Suspension

Rear axle - Oscillation
9 °
Empty Loaded Cylinder Stroke Front
9 in
Empty Loaded Cylinder Stroke Rear
6 in

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
58 ft
Steering Standards
ISO 5010:2007
Steer Angle
41 °
Turning Circle - Clearance Diameter
67 ft
Note
Target gross machine operating weight is 71 214 kg (157,000 lb).

Tires

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.
Note (2)
Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection.

Power Train

Emission Controls

Fuel Saving Strategies

Performance

Brake Performance

Traction Control System

Truck Bodies

Manufacturing and Design

Operator Experience

VIMS

Monitoring Your Payload and Tires

Pass Match

Simple Service

Customer Support

Safety and Sustainability

  • 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
    • 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

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