CAT 789D Haul Truck

Engine Details

Net Power 1969 hp (1468.3 kw)
Gross Power 2100 hp (1566 kw)
Displacement 4766 cu in (78.2 L)
Bore 6.7 in (170.2 mm)
Stroke 8.3 in (210.9 mm)
Gross Power – Sae J1995 2100 hp (1566 kw)
Engine Model 3516C – HD
Rated Net Power – Iso 9249 1969 hp (1468.3 kw)

Transmission

Reverse 7.3 mile/h
Forward – 1 7.8 mph (12.6 km/h)
Forward – 2 10.6 mph (17.1 km/h)
Forward – 3 14.4 mph (23.2 km/h)
Forward – 4 19.4 mph (31.3 km/h)
Forward – 5 26.3 mph (42.4 km/h)
Forward – 6 35.5 mph (57.2 km/h)

Steering

Steering Standards SAE J1511 OCT90 ISO 5010:1992
Steering Angle 36.1 degrees (36.07 degrees)
Turning Diameter -Front Wheel 90.4 ft in (27.6 m)
Vehicle Clearance – Turn Circle 99.2 ft in (30.3 m)

Tires

Standard Tires 37.00-R57
Optional Tires 40.00-R57

Brakes

Brake Surface – Front 12662 in2 (8.2 m2)
Brake Surface – Rear 18024 in2 (11.7 m2)
Standards SAE J1473 OCT90 ISO 3450:1996

Body Hoists

Pump Flow – High Idle 193 gal/min
Relief Valve Setting – Raise 2500 psi
Body Raise Time – High Idle 18.9 s
High Idle Body Lower Time – Float 17.3 s
High Idle Body Lower Time – Power 15.6 s

Final Drives

Planetary Ratio 10.83:1
Differential Ratio 2.35:1
Total Reduction Ratio 25.46:1

Operating Specifications

Nominal Payload Capacity 400000 lb (181436.8 kg)
Standard Msd Body (Sae 2:1) 170 yd3 (130 m3)
Standard X Body (Sae 2:1) 161 yd3 (123.1 m3)
Standard Dual Slope Body (Sae 2:1) 141 yd3 (107.9 m3)
Standard Combi Body (Sae 2:1) 200 yd3 (153 m3)
Standard Gateless Coal Body (Sae 2:1) 250 yd3 (191.2 m3)

Service Refill Capacities

Cooling System 192 gal (726.8 L)
Differential – Final Drives 154 gal (583 L)
Crankcase 77 gal (291.5 L)
Brake Hoist System 241 gal (912.3 L)
Fuel Tank – Standard 550 gal (2082 L)
Fuel Tank – Optional 1000 gal (3785.5 L)
Transmission Tank 20 gal (75.8 L)
Steering System 50 gal (189.3 L)

Weight Distributions – Approximate

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

Weights – Approximate

Body Weight Range 23 920 kg-45 547 kg (52,850 lb-100,414 lb)
Gross Machine Operating Weight (Gmw) 715000 lb (324318.6 kg)
Empty Operating Chassis Weight (Eocw) 218542 lb (99129 kg)

Rops

Rops Standards Standards

Sound

Sound Standards Standards

Suspension

Effective Cylinder Stroke – Front 4 in (101.6 mm)
Effective Cylinder Stroke – Rear 3.5 in (88.9 mm)

Optional Engine

Engine Model 3516B EUI
Gross Power 1900 hp (1416.9 kw)
Rated Net Power – Iso 9249 1791 hp (1335.6 kw)
Bore 6.7 in (170.2 mm)
Stroke 7.5 in (190.5 mm)
Displacement 4211 cu in (69.1 L)
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