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. The 770G has an updated Traction Control System (TCS) to keep you moving even when the ground conditions aren’t perfect. You’ll see improvements in fuel use through new and flexible fuel savings 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%)
- 42.1 ton (US)
- Top Speed - Loaded
- 45.8 mile/h
- Maximum Working Payload (110%)
- 46.3 ton (US)
- Body Capacity - SAE 2:1
- 32.9 yd³
- Note (1)
- *Refer to Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
- Note (2)
- Target payload and capacity based on Dual Slope body with no liner. Attachment selection will affect payload and maximum gross machine operating weight.
Engine
- Gross Power - SAE J1995
- 515 HP
- Rated Engine Speed
- 1700 r/min
- Emissions
- Meets U.S. EPA Tier 4 and EU Stage V emission standards.
- Net Power - SAE J1349
- 477 HP
- Net Power - 80/1269/EEC
- 489 HP
- Note (1)
- Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard.
- Net Power - ISO 14396
- 508 HP
- Net Torque - SAE J1349
- 1834 ft·lbf
- 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 B
- Note (3)
- No engine derating required up to 3000 m (9,843 ft) altitude.
- Number of Cylinders
- 6
- Bore
- 5.4 in
- Stroke
- 6.7 in
- Note (4)
- Meets Japan Small Volume Exemption.
- Displacement
- 927.6 in²
- Net Power - ISO 9249
- 477 HP
- Engine Model
- Cat® C15
Weights - Approximate
- Target Gross Machine Operating Weight
- 157000 lb
- Target Gross Machine Weight
- 157000 lb
- Chassis Weight
- 55948 lb
- Body Weight
- 17306 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.
Transmission
- Forward - 1
- 7.4 mile/h
- Forward - 2
- 10.1 mile/h
- Forward - 5
- 25.1 mile/h
- Forward - 6
- 33.8 mile/h
- Forward - 7
- 45.8 mile/h
- Reverse
- 8.8 mile/h
- Forward - 3
- 13.8 mile/h
- Forward - 4
- 18.5 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
- 6235 in²
- Brake Standards
- ISO 3450:2011
- Note
- Target gross machine operating weight is 71 214 kg (157,000 lb).
Body Hoists
- Pump Flow - High Idle
- 118 gal/min
- Relief Valve Setting - Raise
- 2750 psi
- Relief Valve Setting - Lower
- 500 psi
- Body Raise Time - High Idle
- 7.5 s
- Body Lower Time - Float
- 10 s
- Body Power Down - High Idle
- 10 s
Dimensions
- Wheel Base
- 13 in
- Overall Body Length
- 26.8 ft
- Inside Body Length
- 18.5 ft
- Overall Length
- 28.9 ft
- Rear Axle - Tail
- 8.5 ft
- Dump Clearance
- 1.7 ft
- Loading Height - Empty
- 10.3 ft
- Inside Body Depth - Maximum
- 4.6 ft
- Overall Height - Body Raised
- 27.1 ft
- Height - Top of ROPS
- 12.7 ft
- Operating Width
- 15.7 ft
- Ground Clearance
- 1.6 ft
- Centerline Front Tire Width
- 10.2 ft
- Engine Guard Clearance
- 1.8 ft
- Outside Body Width
- 12.9 ft
- Inside Body Width
- 11.9 ft
- Front Canopy Height
- 13.5 ft
- Rear Axle - Clearance
- 1.8 ft
- Centerline of Rear Dual Tire Width
- 8.3 ft
- Overall Tire Width
- 12.1 ft
Capacity - Dual Slope - 100% Fill Factor
- Struck
- 23.01 yd³
Capacity - Flat Floor - 100% Fill Factor
- Struck
- 23.01 yd³
Weight Distributions - Approximate
- Front Axle - Empty
- 49 %
- Front Axle - Loaded
- 34 %
- Rear Axle - Empty
- 51 %
- Rear Axle - Loaded
- 66 %
Suspension
- Empty Loaded Cylinder Stroke Front
- 9.2 in
- Empty Loaded Cylinder Stroke Rear
- 5.9 in
- Rear axle - Oscillation
- 8.9 °
Service Refill Capacities
- Differential - Final Drives
- 47 gal (US)
- Steering Tank
- 14.5 gal (US)
- Steering System - Including Tank
- 23 gal (US)
- Brake/Hoist Hydraulic Tank
- 38 gal (US)
- Brake Hoist System
- 60 gal (US)
- Torque Converter - Transmission System
- 17 gal (US)
- Crankcase
- 17 gal (US)
- Fuel Tank
- 140 gal (US)
- Cooling System
- 33 gal (US)
- DEF Tank
- 6 gal (US)
Steering
- Steering Standards
- ISO 5010:2007
- Steer Angle
- 40.5 °
- Turning Diameter - Front
- 57.7 ft
- Turning Circle - Clearance Diameter
- 66.6 ft
- Note
- Target gross machine operating weight is 71 214 kg (157,000 lb).
Tires
- Standard Tire
- 18.00R33 (E4)
- Note (2)
- Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection.
- 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.
ROPS
- ROPS Standards
- Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
- FOPS Standards
- Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
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.
- With Cooling Fan Speed at Maximum Value – Note
- *ISO 6483:1980.
