770 (07)
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.
Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1800 r/min
Gross Power - SAE J1995
511 HP
Specification
Value
Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1800 r/min
Gross Power - SAE J1995
511 HP
Net Power - SAE J1349
483 HP
Net Power - ISO 9249
476 HP
Net Power - 80/1269/EEC
489 HP
Engine Power - ISO 14396
506 HP
Net Torque - SAE J1349
1682 ft-lb
Number of Cylinders
6
Bore
5.4 in
Stroke
6.7 in
Displacement
927.6 in³
Note (1)
Power rating applies at 1,800 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 China Nonroad Stage III emission standards equivalent to U.S. EPA Tier 3 or U.S. EPA Tier 2.
Specification
Value
Target Gross Machine Operating Weight
157000 lb
Chassis Weight
54895 lb
Body Weight
16898 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.
Specification
Value
Nominal Payload Class (100%)
42.6 Sh Ton
Top Speed - Loaded
45.7 mile/h
Target Payload (100%)
42.6 Sh Ton
Body Capacity - SAE 2:1
33 yd³
Top Speed - Loaded*
45.7 mile/h
Note
Refer to the Caterpillar 10/10/20 Overload Policy for maximum gross machine weight limitations.
Note (1)
Capacity with dual slope body with no liner.
Note (2)
*ISO 6483:1980
Specification
Value
Forward - 1
7.4 mile/h
Forward - 2
10.1 mile/h
Forward - 3
13.7 mile/h
Forward - 4
18.4 mile/h
Forward - 5
25 mile/h
Forward - 6
33.7 mile/h
Forward - 7
45.7 mile/h
Reverse
9.7 mile/h
Note
Maximum travel speeds with standard 18.00R33 (E4) tires.
Specification
Value
Differential Ratio
2.12:1
Planetary Ratio
4.80:1
Total Reduction Ratio
10.18:1
Specification
Value
Brake Surface - Front
216 in²
Brake Surface - Rear
6235 in²
Brake Standards
ISO 3450:1996
Specification
Value
Pump Flow - High Idle
118 gal/min
Relief Valve Setting - Raise
2750 psi
Relief Valve Setting - Lower
500 psi
Body Power Down - High Idle
10.0 seconds (approx.)
Body Lower Time - Float
10.0 seconds (approx.)
Body Raise Time - High Idle
7.5 seconds (approx.)
Specification
Value
Struck
23.01 yd³
Heaped (SAE 2:1)*
32.9 yd³
Note (1)
*ISO 6483:1980
Specification
Value
Struck
23.01 yd³
Heaped (SAE 2:1)*
32.9 yd³
Note (1)
*ISO 6483:1980
Specification
Value
Front Axle - Empty
51.9 %
Front Axle - Loaded
34.5 %
Rear Axle - Empty
48.1 %
Rear Axle - Loaded
65.5 %
Specification
Value
Empty Loaded Cylinder Stroke Front
9.2 in
Empty Loaded Cylinder Stroke Rear
5.9 in
Rear axle - Oscillation
8.9 °
Specification
Value
Fuel Tank
140 gal (US)
Cooling System
33 gal (US)
Crankcase
10 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)
Specification
Value
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.
Specification
Value
ROPS/FOPS Standards
Standards
ROPS Standards
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
Specification
Value
Sound Standards
Standards
Note (1)
The dynamic operator sound pressure level is 79 dB(A) when “ISO R396:2008” is used to measure the value for an enclosed cab. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed.
Note (2)
Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Specification
Value
Steering Standards
ISO 5010:2007
Steer Angle
40.5 °
Turning Diameter - Front
57.7 ft
Turning Circle - Clearance Diameter
66.6 ft
