770 Off-Highway Truck
Cat’s 770 40-ton payload sets the standard for haul performance in construction and quarry industries. We’ve taken the best of our rugged, dependable Off-Highway Truck lineup and integrated it with technologies that help our environment, make operators more productive, and dramatically improve the economics of haul fleets. An optimal pass match for the 770 is the Cat 986K or 988K Wheel Loader or the 374F or 390F Hydraulic Excavators. No matter your business type, the 770 is designed to help you move materials safely and efficiently through every haul.
Operating Specifications
- Nominal Payload Class (100%)
- 42.1 ton (US)
- Top Speed - Loaded
- 45.8 mile/h
- Note (1)
- *Refer to Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
- Maximum Working Payload (110%)
- 46.3 ton (US)
- Body Capacity - SAE 2:1
- 32.9 yd³
- 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
- Net Power - SAE J1349
- 477 HP
- Net Power - 80/1269/EEC
- 489 HP
- Net Power - ISO 14396
- 508 HP
- Net Torque - SAE J1349
- 1834 ft·lbf
- Rated Engine Speed
- 1700 r/min
- Bore
- 5.4 in
- Stroke
- 6.7 in
- Note (1)
- Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard.
- Displacement
- 927.6 in²
- Number of Cylinders
- 6
- 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
- Emissions
- Meets U.S. EPA Tier 4 and EU Stage V emission standards.
- Note (4)
- Meets Japan Small Volume Exemption.
- Note (3)
- No engine derating required up to 3000 m (9,843 ft) altitude.
- Net Power - ISO 9249
- 477 HP
- Engine Model
- Cat® C15
Service Refill Capacities
- DEF Tank
- 6 gal (US)
- Brake/Hoist Hydraulic Tank
- 38 gal (US)
- Brake Hoist System
- 60 gal (US)
- Differential - Final Drives
- 47 gal (US)
- Steering System - Including Tank
- 23 gal (US)
- Torque Converter - Transmission System
- 17 gal (US)
- Steering Tank
- 14.5 gal (US)
- Crankcase
- 17 gal (US)
- Fuel Tank
- 140 gal (US)
- Cooling System
- 33 gal (US)
Transmission
- Forward - 3
- 13.8 mile/h
- Forward - 4
- 18.5 mile/h
- Forward - 5
- 25.1 mile/h
- Note
- Maximum travel speeds with standard 18.00R33 (E4) tires.
- Forward - 6
- 33.8 mile/h
- Forward - 7
- 45.8 mile/h
- Reverse
- 8.8 mile/h
- Forward - 1
- 7.4 mile/h
- Forward - 2
- 10.1 mile/h
Tires
- 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.
- Standard Tire
- 18.00R33 (E4)
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).
Steering
- Steering Standards
- ISO 5010:2007
- Steer Angle
- 40.5 °
- Turning Circle - Clearance Diameter
- 66.6 ft
- Turning Diameter - Front
- 57.7 ft
- Note
- Target gross machine operating weight is 71 214 kg (157,000 lb).
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.
Dimensions
- Ground Clearance
- 1.6 in
- Wheel Base
- 13 in
- Height - Top of ROPS
- 12.7 ft
- Overall Body Length
- 26.8 ft
- Inside Body Length
- 18.5 ft
- Overall Length
- 28.9 in
- 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
- Operating Width
- 15.7 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
Final Drives
- Differential Ratio
- 1.92:1
- Planetary Ratio
- 4.80:1
- Total Reduction Ratio
- 9.26:1
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
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 °
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.
Shipping
- UPC
- *ISO 6483:1980.