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Caterpillar 789C Off-Highway Truck

Approximate Weights - Dual Slope

Gross Weight - Empty310,525 lbs (140,852 kg)

Approximate Weights - Flat Floor

Body66,200 lbs (30,028 kg)
Chassis225,400 lbs (102,240 kg)

Articulating/Rigid

Articulating/Rigid Rigid

Body Hoists

Body Lower Time - Float17.3 seconds
Body Raise Time - High Idle18.9 seconds
Pump Flow - High Idle193 gpm (731 lpm)
Relief Valve Setting - Lower96 psi
Relief Valve Setting - Raise2500 psi

Capacity - Dual Slope - 100% Fill Factor

Heaped 2:1 (SAE)102 cu yd (78 cu m)
Struck96 cu yd (73 cu m)

Capacity - Flat Floor - 100% Fill Factor

Struck102 cu yd (78 cu m)

Dimensions

Dump Ground Clearance4 ft (1 m)
Dump Height39 ft (12 m)
Ground Clearance4 ft (1 m)
Overall Height20 ft (6 m)
Overall Length40 ft (12 m)
Overall Width25 ft (8 m)
Wheelbase19 ft (6 m)

DRIVE SYSTEM

Drive Config 4x2

Dump

Dump Angle49.5 degrees
Load Capacity - heaped137 cu yd (105 cu m)
Load Capacity - Struck102 cu yd (78 cu m)
Lower Time17.3 seconds
Raise Time18.9 seconds

Engine

Bore7 in (17 cm)
Displacement4,211 cu in (69,006 cu cm)
Engine ModelCat 3516B EUI
Gross Power1,900 hp (1,417 kw)
Gross Power - SAE J19951,900 hp (1,417 kw)
MakeCat
Model3516B
Net Power1,770 hp (1,320 kw)
Net Power - 80/1269/EEC1,791 hp (1,336 kw)
Net Power - ISO 92491,791 hp (1,336 kw)
Net Power - SAE J13491,771 hp (1,321 kw)
Number of Cylinders16
Power Measured @1750 rpm
Rated Engine Speed140 rpm
Stroke8 in (19 cm)
Torque Measured @Turbocharged rpm
Torque Rise15.6

Final Drives

Planetary Ratio10.83:1

Operating Specifications

Body Capacity - SAE 2:1137 cu yd (105 cu m)
Brake/Hoist System Fluid Capacity240 gal (908 l)
Cooling System Fluid Capacity175 gal (662 l)
Diff and Final Drive Fluid Capacity154 gal (583 l)
Engine Oil Capacity20 gal (76 l)
Fuel Capacity851 gal (3,221 l)
Hydraulic System Fluid Capacity140 gal (530 l)
Operating Voltage24 volts
Steering System Fluid Capacity50 gal (189 l)
Tire Size37.00-R57(E4)
Top Speed - Loaded33 mph (53 kph)
Turning Diameter - Front99 ft (30 m)

ROPS

ROPS/FOPS Standards59625

Service Refill Capacities

Brake / Hoist / Fan Hydraulic Tank137 gal (519 l)
Brake Hoist System - Includes Tank240 gal (908 l)
Cooling System175 gal (662 l)
Fuel Tank - Optional26,800-29,950 kg (59,084-66,028 lbs)
Fuel Tank - Standard851 gal (3,221 l)
Steering System - Including Tank50 gal (189 l)
Steering Tank34 gal (129 l)

Suspension

Effective Cylinder Stroke - Rear4 in (9 cm)
Rear axle - Oscillation4 degrees

Transmission

Forward - 17 mph (12 kph)
Forward - 210 mph (16 kph)
Forward - 313 mph (21 kph)
Forward - 418 mph (29 kph)
Forward - 524 mph (39 kph)
Forward - 633 mph (53 kph)
Max Speed33 mph (53 kph)
Number of Gears - Forward6
Number of Gears - Reverse1
Reverse7 mph (10 kph)
Transmission TypeSix-speed planetary power shift with direct injection

Weights

Body Weight225,500 lbs (102,285 kg)
Body Weight Range26 800-29 950 kg (59,000-71,500 lb)
Empty Weight299,101 lbs (135,670 kg)
Front Axle - Empty47%
Front Axle - Loaded33%
Loaded Weight700,000 lbs (317,515 kg)
Operating Weight - LoadedSAE J1511 OCT90 ISO 5010:1992 lbs
Rear Axle - Empty53%
Rear Axle - Loaded67%
Weight Distribution Front - empty47%
Weight Distribution Front - loaded33%
Weight Distribution Rear - empty53%
Weight Distribution Rear - loaded67%

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39.96250 \\ -83.00610 \\ Columbus \\ PA