Off-Highway Trucks

770G Off-Highway Truck

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Specification Summary

Nominal Payload Class (100%)
42.1 ton (US)
Engine Model
Cat® C15 ACERT™
Top Speed - Loaded
45.8 mile/h
Rated Engine Speed
1700 r/min
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Engine

Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1700 r/min
Gross Power - SAE J1995
515 HP
Net Power - SAE J1349
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.

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.

Operating Specifications

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.

Transmission

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.

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

Capacity - Dual Slope - 100% Fill Factor

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.

Capacity - Flat Floor - 100% Fill Factor

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.

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

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)

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.

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.

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).

Dimensions

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
Engine Model
Cat® C15 ACERT™
Rated Engine Speed
1700 r/min
Gross Power - SAE J1995
515 HP
Net Power - SAE J1349
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.
Target Gross Machine Operating Weight
157000 lb
Target Gross Machine Weight
157000 lb
Chassis Weight
55948 lb
Body Weight
17306 lb
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
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
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
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.
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)
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
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
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.
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.
Note
Maximum travel speeds with standard 18.00R33 (E4) tires.
Note
Target gross machine operating weight is 71 214 kg (157,000 lb).
Note
Target gross machine operating weight is 71 214 kg (157,000 lb).
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.

Caterpillar offers partial machines and systems, working with Cat dealers and Original Equipment Manufacturers (OEMs) to provide specialty machines for specific applications. Bare chassis trucks (WTR models) can be ordered with or without hoist cylinders and most product options are identical to the dump truck models. Typically, these models come equipped with the higher Tractor ROPS certification ratings needed for specialty machines including water trucks, tow tractors and fuel and lube trucks. You’ll find these partial machine configurations are used in construction, demolition, waste, material handling, and mining industries and allow you to purchase complete solutions from your Cat dealer, using Cat equipment every step of the way.