770 Off-Highway Truck

Overview

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.

Key Features

More Comfort. More Performance. More Versatility.

Up To 11% Less CO2 Emissions

The 770 emits up to 11% less CO2 than the previous 770.

Improved Performance

Achieve maximum performance with increased travel speed for faster cycle times, 7% more torque, and Improved traction control.

Up To 10% Less Fuel Consumption

Designed to be more efficient with two economy mode options, APECS transmission controls, and auto neutral idle.

Expanded Service Access

Equipped with safety features for easy access to engine air cleaner housing, lockable ground level service centers, and convenient fill locations for fuel an DEF tanks.

Media Gallery

Specifications

Engine Model	Cat® C15
Rated Engine Speed	1700 r/min
Gross Power - SAE J1995:2014	515 hp
Net Power - SAE J1349:2011	477 hp
Net Power - ISO 9249	477 hp
Net Power - 80/1269/EEC	489 hp
Net Power - ISO 14396	508 hp
Net Torque - SAE J1349	1834 ft·lbf
Number of Cylinders	6
Bore	5.4 in
Stroke	6.7 in
Displacement	927.6 in³
Emissions	Meets U.S. EPA Tier 4 and EU Stage V emission standards.
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 Japan Small Volume Exemption.

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.

Nominal Payload Class (100%)	42.1 ton (US)
Top Speed - Loaded	45.8 mile/h
Target Payload (100%)	42.1 ton (US)
Maximum Working Payload (110%)	46.3 ton (US)
Maximum Allowable Payload (120%)*	50.5 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.

Forward - 1	7.4 mile/h
Forward - 2	10.1 mile/h
Forward - 3	13.8 mile/h
Forward - 4	18.5 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
Note	Maximum travel speeds with standard 18.00R33 (E4) tires.

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

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).

Pump Flow - High Idle	118 gpm
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

Struck	23.01 yd³
Heaped (SAE 2:1)*	32.9 yd³
Note (2)	*ISO 6483:1980.
Note (1)	Contact your local Cat dealer for body recommendation.

Struck	23.01 yd³
Heaped (SAE 2:1)*	32.9 yd³
Note (1)	Contact your local Cat dealer for body recommendation.
Note (2)	*ISO 6483:1980.

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

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

Fuel Tank	140 gal (US)
Cooling System	33 gal (US)
Crankcase	17 gal (US)
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)
DEF Tank	6 gal (US)

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.

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 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.

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).

Height - Top of ROPS	12.7 ft
Overall Body Length	26.8 ft
Inside Body Length	18.5 ft
Overall Length	28.9 ft
Wheel Base	13 ft
Rear Axle - Tail	8.5 ft
Ground Clearance	1.6 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