CAT 777D Haul Truck

Dimensions

Overall Length 32.1 ft in (9781.04 mm)
Overall Width 20.02 ft in (6100 mm)
Overall Height 16.41 ft in (5000 mm)
Wheelbase 15 ft in (4570 mm)
Ground Clearance 2.46 ft in (749.81 mm)
Dump Height 32.71 ft in (9970 mm)
Dump Ground Clearance 2.87 ft in (872 mm)
Inside Body Depth – Maximum 6.3 ft in (1.93 m)
Inside Body Length 23.73 ft in (7.24 m)
Inside Body Width 17.06 ft in (5.2 m)
Operating Width 20.03 ft in (6105.15 mm)
Outside Body Width 18.12 ft in (5.53 m)
Overall Body Length 31.3 ft in (9.55 m)
Overall Canopy Width 19.11 ft in (5.83 m)
Overall Height – Body Raised 33 ft in (10.06 m)
Loading Height – Empty 14.37 ft in (4.38 m)
Centerline Front Tire Width 13.69 ft in (4.18 m)
Centerline Of Rear Dual Tire Width 11.75 ft in (3.59 m)
Dump Clearance 3.1 ft in (0.95 m)
Engine Guard Clearance 2.33 ft in (0.72 m)
Front Canopy Height 16.61 ft in (5.06 m)
Height – Top Of Rops 14.8 ft in (4.52 m)
Overall Tire Width 17.27 ft in (5.27 m)
Rear Axle – Clearance 2.5 ft in (0.77 m)
Rear Axle – Tail 9.11 ft in (2.78 m)
Wheel Base 14.99 ft in (4.57 m)

Dump

Rated Payload 200000 lb (90718.48 kg)
Load Capacity – Heaped 79.14 yd3 (60.5 m3)
Load Capacity – Struck 54.94 yd3 (42 m3)
Raise Time 15 sec

Engine Details

Number Of Cylinders 8
Engine Make CAT
Engine Model 3508A
Gross Power 1000 hp (745.7 kw)
Net Power 938 hp (699.5 kw)
Max Torque 3476.2 lb ft (4713 Nm)
Displacement 2105 cu in (34.5 L)
Torque Measured @ 1300 rpm
Torque Rise 23 %
Bore 6.7 in (170.2 mm)
Stroke 7.5 in (190.5 mm)
Net Power – Cat 938 hp (699.5 kw)
Net Power – Iso 9249 938 hp (699.5 kw)
Net Power – Sae J1349 938 hp (699.5 kw)
Net Power – 80/1269/Eec 938 hp (699.5 kw)
Gross Power – Sae J1995 1000 hp (745.7 kw)
Engine Model Cat 3508B EUI
Flywheel Power 938 hp (699.5 kw)
Rated Engine Speed 1750 rpm

Operational Specs

Fuel Tank Capacity 300.4 gal (1137 L)
Cooling System Fluid Capacity 85.9 gal (325 L)
Engine Oil Capacity 32.8 gal (124 L)
Diff And Final Drive Fluid Capacity 87 gal (329 L)
Steering System Fluid Capacity 22.2 gal (84 L)
Brake/Hoist System Fluid Capacity 109.7 gal (415 L)
Hydraulic System Fluid Capacity 36.5 gal (138 L)

Transmission

Transmission Type automatic power shift
Number Of Gears – Forward 7
Number Of Gears – Reverse 1
Max Speed 37.6 mph (60.4 km/h)
Reverse 7.4 mile/h
Forward – 1 6.5 mph (10.5 km/h)
Forward – 2 8.9 mph (14.4 km/h)
Forward – 3 12 mph (19.4 km/h)
Forward – 4 16.2 mph (26.1 km/h)
Forward – 5 21.9 mph (35.3 km/h)
Forward – 6 29.4 mph (47.4 km/h)
Forward – 7 39.9 mph (64.3 km/h)

Steering

Steering Standards SAE J1511 OCT90, ISO 5010:1992 (E)
Steer Angle 31.8 degrees

Weights

Empty Weight 155000 lb (70306.9 kg)
Loaded Weight 355010.5 lb (161030 kg)
Weight Distribution Front – Empty 45.4 %
Weight Distribution Rear – Empty 54.6 %
Weight Distribution Front – Loaded 33.3 %
Weight Distribution Rear – Loaded 66.7 %

Tires

Standard Tire 27.00-R49 (E4)

Brakes

Brake Surface – Front 432 in2 (0.3 m2)
Brake Surface – Rear 15828 in2 (10.3 m2)
Brake Standards ISO 3450: 1996; SAE J1473 OCT90

Body Hoists

Pump Flow – High Idle 119 gal/min
Relief Valve Setting – Raise 2750 psi
Body Raise Time – High Idle 15 s
Body Lower Time – Float 13 s
Body Power Down – High Idle 13 s
Relief Valve Setting – Lower 3450 psi

Final Drives

Planetary Ratio 7.00:1
Differential Ratio 2.74:1
Total Reduction Ratio 19.16:1

Operating Specifications

Circle Clearance Diameter 85.5 ft in (26.1 m)
Nominal Payload Class (100%) 178920 lb (81156.7 kg)
Top Speed – Loaded 39.9 mph (64.3 km/h)
Body Capacity – Struck 55.1 yd3 (42.1 m3)
Maximum Capacity 178920 lb (81156.7 kg)
Raise Time 15 s
Lower Time 14 s
Steer Angle 31.8 degrees
Body Capacity – Sae 2:1 78.6 yd3 (60.1 m3)

Service Refill Capacities

Cooling System 86 gal (325.6 L)
Differential – Final Drives 87 gal (329.4 L)
Steering Tank 15 gal (56.8 L)
Steering System – Including Tank 22 gal (83.3 L)
Fuel Tank Capacity 300 gal (1135.7 L)
Torque Converter – Transmission System – Including Sump 36.5 gal (138.1 L)
Torque Converter – Brake – Hoist Hydraulic Tank 66 gal (249.9 L)
Brake Hoist System – Includes Tank 109.7 gal (415 L)
Torque Converter – Brake – Hoist System – Including Tank 133 gal (503.5 L)

Weight Distributions – Approximate

Front Axle – Empty 47 %
Front Axle – Loaded 33 %
Rear Axle – Empty 53 %
Rear Axle – Loaded 67 %

Weights – Approximate

Operating Weight – Empty 141749 lb (64296.3 kg)
Operating Weight – Loaded 355000 lb (161025.4 kg)
Target Gross Machine Operating Weight 360000 lb (163293.3 kg)
Chassis Weight 107100 lb (48579.8 kg)
Body Weight 34800 lb (15785.1 kg)

Capacity – Dual Slope – 100% Fill Factor

Struck 55 yd3 (42.1 m3)
Heaped 2:1 (Sae) 78.6 yd3 (60.1 m3)

Rops

Rops/Fops Standards SAE J1040 MAY94, ISO 3471:1997

Sound

Sound Standards ANSI/SAE J1166 MAY90, SAE J88 JUN96

Suspension

Rear Axle – Oscillation 5.4 degrees
Effective Cylinder Stroke – Front 12.5 in (317.5 mm)
Effective Cylinder Stroke – Rear 6.5 in (165.1 mm)

Approximate Weights – Dual Slope

Body 34785 lb (15778.3 kg)
Chassis 106964 lb (48518.1 kg)

Approximate Weights – Dual Slope Lined

Body 46840 lb (21246.3 kg)
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