Caterpillar 772 Dump Truck

Approximate Weights – Dual Slope

Gross Weight – Empty 112,000 lbs (50,802 kg)

Approximate Weights – Flat Floor

Chassis 35 lbs (16 kg)

Articulating/Rigid

Articulating/Rigid Rigid

Body Hoists

Body Lower Time – Float 12.5 seconds
Body Power Down – High Idle 12.5 seconds
Body Raise Time – High Idle 9.5 seconds
Pump Flow – High Idle 136 gpm (515 lpm)
Relief Valve Setting – Raise 2500 psi

Brakes

Brake Surface – Rear 7,794 cu in (127,721 cu cm)
Standards 2.74:1

Capacity – Flat Floor – 100% Fill Factor

Heaped 2:1 (SAE) 41 cu yd (31 cu m)

Dimensions

Centerline Front Tire Width 10 ft (3 m)
Dump Ground Clearance 2 ft (1 m)
Dump Height 28 ft (8 m)
Front Canopy Height 14 ft (4 m)
Ground Clearance 2 ft (1 m)
Inside Body Depth – Maximum 6 ft (2 m)
Inside Body Length 18 ft (6 m)
Loading Height – Empty 12 ft (4 m)
Operating Width 16 ft (5 m)
Overall Canopy Width 500 ft (152 m)
Overall Height 14 ft (4 m)
Overall Height – Body Raised 28 ft (8 m)
Overall Length 29 ft (9 m)
Overall Width 16 ft (5 m)
Wheel Base 13 ft (4 m)
Wheelbase 13 ft (4 m)

DRIVE SYSTEM

Drive Config 4×2

Dump

Dump Angle 1800
Load Capacity – heaped 41 cu yd (31 cu m)
Load Capacity – Struck 31 cu yd (23 cu m)
Lower Time 14.7 seconds
Raise Time 8.1 seconds
Rated Payload 100,000 lbs (45,359 kg)

Engine

Aspiration Turbocharged
Bore 6 in (14 cm)
Displacement 1,105 cu in (18,108 cu cm)
Engine Model Cat C18 ACERT
Gross Power 598 hp (446 kw)
Gross Power – SAE J1995 598 hp (446 kw)
Make Cat
Max Torque 1,988 lbs ft (2,695 nm)
Model C16 ACERT
Net Power 535 hp (399 kw)
Net Power – 80/1269/EEC 535 hp (399 kw)
Net Power – ISO 9249 535 hp (399 kw)
Net Power – SAE J1349 535 hp (399 kw)
Number of Cylinders 6
Peak Torque 1,988 lbs ft (2,695 nm)
Power Measured @ 1800 rpm
Stroke 7 in (18 cm)
Torque Measured @ Turbocharged rpm
Torque Rise 12.5

Final Drives

Planetary Ratio 4.80:1
Total Reduction Ratio 13.15:1

Operating Specifications

Alternator Supplied Amperage Gear
Body Capacity – SAE 2:1 41 cu yd (31 cu m)
Brake/Hoist System Fluid Capacity 73 gal (276 l)
Cooling System Fluid Capacity 30 gal (114 l)
Diff and Final Drive Fluid Capacity 42 gal (159 l)
Engine Oil Capacity 14 gal (53 l)
Fuel Capacity 140 gal (530 l)
Maximum Capacity 100,000 lbs (45,359 kg)
Nominal Payload Capacity 22 lbs (10 kg)
Nominal Payload Class (100%) 102,000 lbs (46,266 kg)
Not to Exceed Payload (120%)* 122,000 lbs (55,338 kg)
Steering System Fluid Capacity 15 gal (57 l)
Tire Size 21.00R33(E4)
Top Speed – Loaded 50 mph (80 kph)

Service Refill Capacities

Brake / Hoist / Fan Hydraulic Tank 35 gal (132 l)
Brake/Hoist Hydraulic Tank 100,000 gal (378,500 l)
Cooling System 30 gal (114 l)
Crankcase 16 gal (61 l)
Fuel Tank 140 gal (530 l)
Steering System – Including Tank 15 gal (57 l)
Steering Tank 9 gal (34 l)
Torque Converter – Transmission Sump 55,171 gal (208,822 l)

Steering System

Steer Angle 36 degrees
Steering Standards ISO 5010:1992
Turning Circle – Clearance Diameter ISO 3450: 1996 ft

Suspension

Effective Cylinder Stroke – Rear 6 in (15 cm)

Tires

Standard Tire 21.00R33 (E4)
Standard Tires 216

Transmission

Forward – 1 8 mph (13 kph)
Forward – 2 11 mph (18 kph)
Forward – 3 15 mph (24 kph)
Forward – 4 20 mph (32 kph)
Forward – 5 27 mph (44 kph)
Forward – 6 37 mph (59 kph)
Forward – 7 50 mph (80 kph)
Max Speed 50 mph (80 kph)
Number of Gears – Forward 7
Number of Gears – Reverse 1
Reverse 11 mph (17 kph)

Weights

Body Weight 22,984 lbs (10,425 kg)
Chassis Weight 55,171 lbs (25,025 kg)
Empty Weight 78,155 lbs (35,451 kg)
Front Axle – Empty 48%
Front Axle – Loaded 34%
Loaded Weight 181,000 lbs (82,100 kg)
Operating Weight – Loaded ISO 5010:1992 lbs
Rear Axle – Empty 52%
Rear Axle – Loaded 66%
Weight Distribution Front – empty 48%
Weight Distribution Front – loaded 34%
Weight Distribution Rear – empty 52%
Weight Distribution Rear – loaded 66%
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