Operating Specification OHT CAT 789C

Operating Specifications

Nominal Payload Capacity : 195 tons

Body Capacity (SAE 2:1) : 137 yd3

Top Speed – Loaded : 32.7 mph

Steer Angle : 36 Degrees

Maximum Capacity : Custom

Turning Circle Clearance Diameter : 99.2 ft

Turning Diameter – Front : 90.2 ft

 Engine

Engine Model : Cat 3516B EUI

Net Power – SAE J1349 : 1771 hp

Net Power – ISO 9249 : 1791 hp

Net Power – 80/1269/EEC : 1791 hp

Bore : 6.7 in

Stroke : 7.5 in

Displacement : 4211 in3

Gross Power – SAE J1995 : 1900 hp

Weights – Approximate

Chassis Weight : 218300 lb

Body Weight Range : 26 800-29 950 kg (59,000-71,500 lb)

Gross Machine Operating Weight : 700000 lb

Transmission

Forward 1 : 7.2 mph

Forward 2 : 9.8 mph

Forward 3 : 13.2 mph

Forward 4 : 17.8 mph

Forward 5 : 24.2 mph

Forward 6 : 32.7 mph

Reverse : 6.5 mph

Final Drives

Differential Ratio : 2.35:1

Planetary Ratio : 10.83:1

Total Reduction Ratio : 25.46:1

Suspension

Effective Cylinder Stroke – Front : 4 in

Effective Cylinder Stroke – Rear : 3.5 in

Rear Axle Oscillation : ±5.6°

Brakes

Brake Surface – Rear : 18024 in2

Standards : SAE J1473 OCT90 ISO 3450:1996

Brake Surface – Front : 12662 in2

Body Hoists

Pump Flow – High Idle : 193 gal/min

Relief Valve Setting – Raise : 2500 psi

Body Raise Time – High Idle : 18.9 Seconds

Body Lower Time – Float : 17.3 Seconds

Body Power Down – High Idle : 15.6 Seconds

Approximate Weights – Dual Slope

Gross Weight – Empty : 310525 lb

Chassis : 225500 lb

Body : 59625 lb

Full Liner : 20840 lb

Tail Extension : 1700 lb

Side Boards : 2860 lb

Approximate Weights – Flat Floor

Chassis : 225400 lb

Body : 66200 lb

Grid Liner : 3300 lb

Rear Third Liner : 4200 lb

Gross Weight – Empty : 299100 lb

Capacity – Dual Slope – 100% fill factor

Struck : 96 yd3

Heaped (SAE 2:1) : 137 yd3

Capacity – Flat Floor – 100% fill factor

Struck : 102 yd3

Heaped (SAE 2:1) : 158 yd3

Service Refill Capacities

Fuel Tank (standard) : 851 gal

Cooling System : 175 gal

Crankcase : 77 gal

Steering Tank : 34 gal

Steering System (Includes Tank) : 50 gal

Brake/Hoist Hydraulic Tank : 140 gal

Brake/Hoist System (Includes Tank) : 240 gal

Differential and Final Drives : 154 gal

Torque Converter/Transmission Sump : 59 gal

Torque Converter/Transmission System (Includes Sump) : 20 gal

Approximate Weights – MSD II

Approximate Weights – X

Capacity – MSD II – 100% fill factor

Tires

Standard Tires : 37.00-R57 (E4)

Steering

Steering Standards : SAE J1511 OCT90 ISO 5010:1992

Optional Engine

Body – Dual Slope

AC Drive System

Body – X

Braking System

Dimensions

Weight Distributions – Approximate

Front Axle – Loaded : 33 %

Rear Axle – Loaded : 67 %

Front Axle – Empty : 47 %

Rear Axle – Empty : 53 %

ROPS

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