773G Off-Highway Truck
The G Series represents a new era for Cat’s Off-Highway Trucks and the 773G provides our customers with a quality operating environment that enhances productivity and provides significant savings in fuel consumption, too. Ergonomically designed with an operator’s comfort in mind, the 773G has an updated cab with new comforts as well as controls conveniently placed within reach of the operator’s hands. Built with a Cat C27 diesel engine, this 60-ton payload uses increased torque delivering 5% additional horsepower. An ideal pass match for the 773G Off-Highway Truck is Cat’s 988K Wheel Loader, 990K Wheel Loader, or the 390F Hydraulic Excavator. Simply put, the 773G will make a positive difference in haul performance all day, every day for today and tomorrow’s work.
Engine
- Net Power - ISO 9249
- 762 HP
- Gross Power - SAE J1995
- 775 HP
- Engine Power - ISO 14396
- 764 HP
- Engine Model
- Cat® C27
- Net Power - SAE J1349
- 719 HP
- Net Power - 80/1269/EEC
- 762 HP
- Rated Engine Speed
- 1800 r/min
- Bore
- 5.4 in
- Stroke
- 6 in
- Displacement
- 1648 in²
- Note (1)
- Power rating applies at 2,000 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 B
- Note (3)
- No engine derating required up to 3048 m (10,000 ft) for Tier 4/Stage V.
Operating Specifications
- Nominal Payload Class (100%)
- 61 ton (US)
- Top Speed - Loaded
- 41.6 mile/h
- Maximum Working Payload (110%)
- 67.1 ton (US)
- Body Capacity - SAE 2:1
- 46.8 yd³
- Note (1)
- Capacity with Dual Slope body – no liner.
- Note (2)
- *?Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
Brakes
- Brake Surface - Front
- 257 in²
- Brake Surface - Rear
- 9497 in²
- Brake Standards
- ISO 3450:2011
Steering
- Steering Standards
- SAE J1511 FEB94 ISO 5010:1992
- Steer Angle
- 31 °
- Turning Circle - Clearance Diameter
- 85.6 ft
- Turning Diameter - Front
- 77.1 ft
Service Refill Capacities
- Brake/Hoist Hydraulic Tank
- 46.5 gal (US)
- Brake Hoist System
- 85 gal (US)
- Differential - Final Drives
- 38 gal (US)
- Steering System - Including Tank
- 14 gal (US)
- Steering Tank
- 9.5 gal (US)
- Crankcase
- 24 gal (US)
- Fuel Tank
- 210 gal (US)
- Cooling System
- 45 gal (US)
Transmission
- Forward - 5
- 22.8 mile/h
- Forward - 6
- 30.7 mile/h
- Forward - 7
- 41.6 mile/h
- Forward - 1
- 6.6 mile/h
- Forward - 2
- 9.3 mile/h
- Reverse
- 8.7 mile/h
- Forward - 4
- 16.8 mile/h
- Forward - 3
- 12.6 mile/h
- Note
- Maximum travel speeds with standard 24.00R35 (E4) tires.
Final Drives
- Differential Ratio
- 3.64:1
- Planetary Ratio
- 4.80:1
- Total Reduction Ratio
- 17.49:1
Body Hoists
- Pump Flow - High Idle
- 118 gal/min
- Relief Valve Setting - Raise
- 2502 psi
- Relief Valve Setting - Lower
- 500 psi
- Body Raise Time - High Idle
- 10 s
- Body Lower Time - Float
- 14 s
- Body Power Down - High Idle
- 14 s
Capacity - Dual Slope - 100% Fill Factor
- Struck
- 35.13 yd³
Capacity - Flat Floor - 100% Fill Factor
- Struck
- 34.33 yd³
Weight Distributions - Approximate
- Front Axle - Empty
- 53 %
- Front Axle - Loaded
- 35 %
- Rear Axle - Empty
- 47 %
- Rear Axle - Loaded
- 65 %
Suspension
- Empty Loaded Cylinder Stroke Front
- 9.2 in
- Empty Loaded Cylinder Stroke Rear
- 5.8 in
- Rear axle - Oscillation
- 8.1 °
Tires
- Standard Tire
- 24.00R35 (E4)
- Note (1)
- Productive capabilities of the 773G 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 evaluate all job conditions and consult 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 Object Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
Sound
- Sound Standards (1)
- The operator Equivalent Sound Pressure Level (Leq) is 76 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly
- Sound Standards (2)
- The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid?gear moving operation is 86 dB(A).
- Sound Standards (3)
- 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.
Hydraulics
- Steering Circuit (@ High Idle)
- 73.2 gal/min
