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777G Off-Highway Truck

777G Off-Highway Truck

At a Glance

Nominal Payload Class (100%)
98.4 ton (US)
Engine Model
Cat® C32 ACERT™
Top Speed - Loaded
41.7 mile/h
Gross Power - SAE J1995
1025 HP
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Overview

G Series represents a new era for this size class from Caterpillar. With your input, we have designed and manufactured a truck that is reliable, economical and offers comfort, confidence and control for your operators. Your long-term success is our goal; with G Series trucks, we’re on the right road.

Operating Specifications

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Nominal Payload Class (100%) 98.4ton (US)
Top Speed - Loaded 41.7mile/h
Maximum Payload (110%) 108.2ton (US)
Nominal Payload (100%) 98.4ton (US)
Not to Exceed Payload (120%)* 118.1ton (US)
Body Capacity - SAE 2:1 83.8yd³

Engine

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Engine Model Cat® C32 ACERT™
Gross Power - SAE J1995 1025HP
Net Power - SAE J1349 916HP
Net Power - 80/1269/EEC 916HP
Net Power - ISO 9249 916HP
Bore 5.7in
Stroke 6.4in
Displacement 1959in³
Cylinders 12
Engine Power - ISO 14396 1008HP
Engine Speed 1800r/min
Net Torque 3899ft-lb
Peak Torque - Speed 1200r/min

Capacity - Dual Slope - 100% Fill Factor

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Struck 54.8yd³
Heaped 2:1 (SAE) 78.8yd³

Weight Distributions - Approximate

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Front Axle - Empty 46%
Front Axle - Loaded 33%
Rear Axle - Empty 54%
Rear Axle - Loaded 67%

Transmission

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Forward - 1 6.8mile/h
Forward - 2 9.2mile/h
Forward - 3 12.5mile/h
Forward - 4 16.9mile/h
Forward - 5 22.9mile/h
Forward - 6 30.7mile/h
Forward - 7 41.7mile/h
Reverse 7.7mile/h

Final Drives

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Differential Ratio 2.736:1
Planetary Ratio 7.0:1
Total Reduction Ratio 19.1576:1

Brakes

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Brake Standards ISO 3450:1996
Brake Surface Area - Front 6331in²
Brake Surface Area - Rear 15828in²

Service Refill Capacities

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Fuel Tank (1) 300gal (US)
Cooling System 63.4gal (US)
Steering System - Including Tank 14.1gal (US)
Brake Hoist System 85gal (US)
Crankcase 28.7gal (US)
Differentials 59.9gal (US)
Torque Converter - Transmission System 36.5gal (US)
Brake Hoist System - Includes Tank 117gal (US)
Final Drive - Each 20gal (US)
Fuel Tank (2) 350gal (US)

Body Hoists

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Pump Flow - High Idle 120.9gal/min
Relief Valve Setting - Raise 2750psi
Relief Valve Setting - Lower 500psi
Body Raise Time - High Idle 15s
Body Lower Time - Float 13s
Body Lower Time - High Idle 13s

Suspension

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Rear axle - Oscillation 5.4°
Empty Loaded Cylinder Stroke Front 2.9in
Empty Loaded Cylinder Stroke Rear 2.5in

Weights - Approximate

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Target Gross Machine Weight 363000lb

Capacity - Coal Bodies - 100% Fill Factor

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SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3) 165yd³
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3) 139yd³
SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3) 116yd³
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3) 144yd³

Capacity - X Body - 100% Fill Factor

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Heaped 2:1 (SAE) 83.8yd³
Struck 56.3yd³

Steering

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Turning Diameter - Front 83ft
Steering Standards SAE J1511 FEB94 ISO 5010:1992
Steer Angle 30.5°
Turning Circle - Clearance Diameter 93ft

Tires

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Standard Tire 27.00R49 (E4)

ROPS

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ROPS/FOPS Standards Standards

Sound

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Sound Standards Standards