Caterpillar 777D Dump Truck

Approximate Weights – Dual Slope

Body 34,785 lbs (15,778 kg)
Chassis 106,964 lbs (48,518 kg)

Approximate Weights – Flat Floor

Body 1,300 lbs (590 kg)

Body Hoists

Body Lower Time – Float 13 seconds
Body Raise Time – High Idle 15 seconds
Pump Flow – High Idle 119 gpm (450 lpm)
Relief Valve Setting – Raise 2750 psi

Brakes

Brake Surface – Rear 15,828 cu in (259,375 cu cm)
Standards 2.74:1

Capacity – Dual Slope – 100% Fill Factor

Heaped 2:1 (SAE) 79 cu yd (60 cu m)

Capacity – Flat Floor – 100% Fill Factor

Heaped 2:1 (SAE) SAE J1040 MAY94, ISO 3471:1997 cu yd

Dimensions

Centerline Front Tire Width 14 ft (4 m)
Dump Ground Clearance 3 ft (1 m)
Dump Height 33 ft (10 m)
Front Canopy Height 17 ft (5 m)
Ground Clearance 3 ft (1 m)
Inside Body Length 24 ft (7 m)
Loading Height – Empty 14 ft (4 m)
Operating Width 20 ft (6 m)
Overall Height 17 ft (5 m)
Overall Height – Body Raised 33 ft (10 m)
Overall Length 32 ft (10 m)
Overall Width 20 ft (6 m)
Wheel Base 15 ft (5 m)
Wheelbase 15 ft (5 m)

Dump

Dump Angle 1750
Load Capacity – heaped 79 cu yd (61 cu m)
Load Capacity – Struck 55 cu yd (42 cu m)
Raise Time 15 seconds
Rated Payload 200,000 lbs (90,719 kg)

Engine

Bore 7 in (17 cm)
Displacement 2,105 cu in (34,495 cu cm)
Engine Model Cat 3508B EUI
Flywheel Power 938 hp (699 kw)
Gross Power 1,000 hp (746 kw)
Gross Power – SAE J1995 1,000 hp (746 kw)
Max Torque 3,476 lbs ft (4,713 nm)
Net Power 938 hp (699 kw)
Net Power – 80/1269/EEC 938 hp (699 kw)
Net Power – Cat 938 hp (699 kw)
Net Power – ISO 9249 938 hp (699 kw)
Net Power – SAE J1349 938 hp (699 kw)
Number of Cylinders 8
Stroke 8 in (19 cm)
Torque Measured @ 1300 rpm

Final Drives

Planetary Ratio 7.00:1
Total Reduction Ratio 19.16:1

Operating Specifications

Alternator Supplied Amperage automatic power shift
Body Capacity – SAE 2:1 79 cu yd (60 cu m)
Body Capacity – Struck 55 cu yd (42 cu m)
Brake/Hoist System Fluid Capacity 110 gal (415 l)
Circle Clearance Diameter 86 ft (26 m)
Cooling System Fluid Capacity 86 gal (325 l)
Diff and Final Drive Fluid Capacity 87 gal (329 l)
Engine Oil Capacity 33 gal (124 l)
Fuel Capacity 300 gal (1,137 l)
Lower Time 14 seconds
Maximum Capacity 178,920 lbs (81,157 kg)
Nominal Payload Capacity 87 lbs (39 kg)
Nominal Payload Class (100%) 178,920 lbs (81,157 kg)
Raise Time 15 seconds
Steer Angle 31.8 degrees
Steering System Fluid Capacity 22 gal (84 l)
Top Speed – Loaded 40 mph (64 kph)

ROPS

ROPS Standards ANSI/SAE J1166 MAY90, SAE J88 JUN96

Service Refill Capacities

Brake Hoist System – Includes Tank 110 gal (415 l)
Brake/Hoist Hydraulic Tank 200,000 gal (757,000 l)
Cooling System 86 gal (326 l)
Differential – Final Drives 87 gal (329 l)
Fuel Tank 300 gal (1,136 l)
Steering System – Including Tank 22 gal (83 l)
Steering Tank 15 gal (57 l)
Torque Converter – Brake – Hoist Hydraulic Tank 66 gal (250 l)
Torque Converter – Transmission Sump 107,100 gal (405,374 l)
Torque Converter – Transmission System – Including Sump 37 gal (138 l)

Sound

Sound Standards ANSI/SAE J1166 MAY90, SAE J88 JUN96

Steering System

Steer Angle 31.8 degrees
Steering Standards SAE J1511 OCT90, ISO 5010:1992 (E)
Turning Circle – Clearance Diameter ISO 3450: 1996, SAE J1473 OCT90 ft

Tires

Standard Tire 27.00-R49 (E4)
Standard Tires 432

Transmission

Forward – 1 7 mph (10 kph)
Forward – 2 9 mph (14 kph)
Forward – 3 12 mph (19 kph)
Forward – 4 16 mph (26 kph)
Forward – 5 22 mph (35 kph)
Forward – 6 29 mph (47 kph)
Forward – 7 40 mph (64 kph)
Max Speed 38 mph (61 kph)
Number of Gears – Forward 7
Number of Gears – Reverse 1
Reverse 7 mph (12 kph)

Weights

Chassis Weight 107,100 lbs (48,580 kg)
Empty Weight 155,000 lbs (70,307 kg)
Front Axle – Empty 47%
Front Axle – Loaded 33%
Loaded Weight 355,011 lbs (161,030 kg)
Rear Axle – Empty 53%
Rear Axle – Loaded 67%
Weight Distribution Front – empty 45.4%
Weight Distribution Front – loaded 33.3%
Weight Distribution Rear – empty 54.6%
Weight Distribution Rear – loaded 66.7%
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