772G Off-Highway Truck

772G Off-Highway Truck

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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 ...
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Operating Specifications

Nominal Payload Class (100%)
51.6ton (US)
Top Speed - Loaded
49.2mile/h
Body Capacity - SAE 2:1
40.8yd³
Maximum Payload Class (110%)
56.7ton (US)
Not to Exceed Payload (120%)
61.9ton (US)
Target Payload Capacity
51.6ton (US)

Engine

Engine Model
Cat® C18 ACERT™
Rated Engine Speed
1700r/min
Gross Power - SAE J1995
605HP
Net Power - SAE J1349
550HP
Net Power - ISO 9249
550HP
Number of Cylinders
6
Bore
5.7in
Stroke
7.2in
Displacement
1105in³
Engine Power - ISO 14396
598HP
Net Torque - SAE J1349
2221ft-lb

Weights - Approximate

Target Gross Machine Operating Weight
181000lb
Chassis Weight
59223lb
Body Weight
17306lb
Target Gross Machine Weight
181000lb

Weight Distributions - Approximate

Front Axle - Empty
51.4%
Front Axle - Loaded
34.2%
Rear Axle - Empty
48.6%
Rear Axle - Loaded
65.8%

Transmission

Forward - 1
8mile/h
Forward - 2
10.9mile/h
Forward - 3
14.8mile/h
Forward - 4
19.8mile/h
Forward - 5
26.9mile/h
Forward - 6
36.2mile/h
Forward - 7
49.2mile/h
Reverse
10.4mile/h

Final Drives

Differential Ratio
2.74:1
Planetary Ratio
4.80:1
Total Reduction Ratio
13.14:1

Brakes

Brake Surface - Front
216in²
Brake Surface - Rear
7794in²
Brake Standards
ISO 3450:1996

Service Refill Capacities

Fuel Tank
140gal (US)
Cooling System
33gal (US)
Differential - Final Drives
47gal (US)
Steering Tank
14.5gal (US)
Steering System - Including Tank
23gal (US)
Brake Hoist System
60gal (US)
Brake/Hoist Hydraulic Tank
38gal (US)
Crankcase
17gal (US)
DEF Tank
6gal (US)
Torque Converter - Transmission System
17gal (US)

Body Hoists

Pump Flow - High Idle
118gal/min
Relief Valve Setting - Raise
2750psi
Relief Valve Setting - Lower
500psi
Body Raise Time - High Idle
7.5s
Body Lower Time - Float
10s
Body Power Down - High Idle
10s

Suspension

Rear axle - Oscillation
8.9°
Empty Loaded Cylinder Stroke Front
9.2in
Empty Loaded Cylinder Stroke Rear
5.8in

Capacity - Dual Slope - 100% Fill Factor

Struck
31.3yd³
Heaped 2:1 (SAE)
40.8yd³

Capacity - Flat Floor - 100% Fill Factor

Struck
31.3yd³
Heaped 2:1 (SAE)
40.9yd³

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 115 dB(A).
Sound Standards (3)
Operator Equivalent Sound Pressure Level (Leq) is 74 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab.

ROPS

FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
ROPS Standards
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.

Dimensions

Height - Top of ROPS
12.8ft
Inside Body Depth - Maximum
5.7ft
Overall Body Length
26.8ft
Inside Body Length
19ft
Overall Length
28.9ft
Wheel Base
13ft
Rear Axle - Tail
9.5ft
Ground Clearance
1.6ft
Dump Clearance
1.5ft
Loading Height - Empty
11.6ft
Overall Height - Body Raised
27.1ft
Operating Width
15.7ft
Centerline Front Tire Width
10.4ft
Engine Guard Clearance
2ft
Outside Body Width
12.9ft
Inside Body Width
11.9ft
Front Canopy Height
13.7ft
Rear Axle - Clearance
1.9ft
Centerline of Rear Dual Tire Width
8.7ft
Overall Tire Width
12.9ft

Steering

Turning Diameter - Front
57.7ft
Steering Standards
ISO 5010:2007
Steer Angle
31°
Turning Circle - Clearance Diameter
66.6ft

Tires

Standard Tire
21.00R33 (E4)

Standard Equipment: