Caterpillar 789C Truck
Full Specifications
Dimensions
- Overall Length
- 39.92 ft in
- Overall Width
- 25.18 ft in
- Overall Height
- 20.25 ft in
- Wheelbase
- 18.68 ft in
- Ground Clearance
- 3.83 ft in
- Dump Height
- 39.25 ft in
- Dump Ground Clearance
- 4.37 ft in
Dump
- Dump Angle
- 49.5 degrees
- Load Capacity ( Struck )
- 102 yd3
- Load Capacity ( Heaped )
- 137.34 yd3
- Rated Payload
- 390000 lb
- Lower Time
- 17.3 sec
- Raise Time
- 18.9 sec
Engine
- Number Of Cylinders
- 16
- Engine Make
- 2236
- Engine Model
- Cat 3516B EUI
- Gross Power
- 1900 hp
- Net Power
- 1770.2 hp
- Power Measured @
- 1750 rpm
- Aspiration
- Turbocharged
- Displacement
- 4211 cu in
- Bore
- 6.7 in
- Stroke
- 7.5 in
- Net Power ( Iso 9249 )
- 1791 hp
- Net Power ( Sae J1349 )
- 1771 hp
- Net Power ( 80/1269/Eec )
- 1791 hp
- Gross Power ( Sae J1995 )
- 1900 hp
Operational
- Fuel Capacity
- 851 gal
- Cooling System Fluid Capacity
- 175 gal
- Engine Oil Capacity
- 20 gal
- Diff And Final Drive Fluid Capacity
- 154 gal
- Steering System Fluid Capacity
- 50 gal
- Brake/Hoist System Fluid Capacity
- 240 gal
- Hydraulic System Fluid Capacity
- 140 gal
- Operating Voltage
- 24 V
- Alternator Supplied Amperage
- 75 amps
- Tire Size
- 37.00-R57(E4)
Transmission
- Transmission Type
- Six-speed planetary power shift with direct injection
- Number Of Gears ( Forward )
- 6
- Number Of Gears ( Reverse )
- 1
- Max Speed
- 32.7 mph
- Reverse
- 6.5 mile/h
- 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
Steering
- Steering Standards
- SAE J1511 OCT90 ISO 5010:1992
Weights
- Empty Weight
- 299100.8 lb
- Loaded Weight
- 700000 lb
- Weight Distribution Front ( Empty )
- 47 %
- Weight Distribution Rear ( Empty )
- 53 %
- Weight Distribution Front ( Loaded )
- 33 %
- Weight Distribution Rear ( Loaded )
- 67 %
Tires
- Standard Tires
- 37.00-R57 (E4)
Brakes
- Brake Surface ( Front )
- 12662 in2
- Brake Surface ( Rear )
- 18024 in2
- 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
- Body Lower Time ( Float )
- 17.3 s
- Body Power Down ( High Idle )
- 15.6 s
Final Drives
- Planetary Ratio
- 10.83:1
- Differential Ratio
- 2.35:1
- Total Reduction Ratio
- 25.46:1
Operating Specifications
- Top Speed - Loaded
- 32.7 mph
- Steer Angle
- 36 degrees
- Body Capacity ( Sae 2:1 )
- 137 yd3
- Turning Diameter ( Front )
- 90.2 ft in
- Nominal Payload Capacity
- 390000 lb
- Turning Circle ( Clearance Diameter )
- 99.2 ft in
Service Refill Capacities
- Cooling System
- 175 gal
- Differential ( Final Drives )
- 154 gal
- Steering Tank
- 34 gal
- Steering System ( Including Tank )
- 50 gal
- Brake Hoist System ( Includes Tank )
- 240 gal
- Crankcase
- 77 gal
- Brake/Hoist Hydraulic Tank
- 140 gal
- Torque Converter/Transmission System ( Including Sump )
- 20 gal
- Fuel Tank - Standard
- 851 gal
- Torque Converter ( Transmission Sump )
- 59 gal
Weight Distributions - Approximate
- Front Axle ( Empty )
- 47 %
- Front Axle ( Loaded )
- 33 %
- Rear Axle ( Empty )
- 53 %
- Rear Axle ( Loaded )
- 67 %
Weights - Approximate
- Chassis Weight
- 218300 lb
- Gross Machine Operating Weight
- 700000 lb
- Body Weight Range
- 26 800-29 950 kg (59,000-71,500 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
Suspension
- Effective Cylinder Stroke ( Front )
- 4 in
- Effective Cylinder Stroke ( Rear )
- 3.5 in
Approximate Weights - Dual Slope
- Body
- 59625 lb
- Chassis
- 225500 lb
- Gross Weight ( Empty )
- 310525 lb
- Full Liner
- 20840 lb
- Tail Extension
- 1700 lb
- Side Boards
- 2860 lb
Approximate Weights - Flat Floor
- Body
- 66200 lb
- Chassis
- 225400 lb
- Gross Weight ( Empty )
- 299100 lb
- Grid Liner
- 3300 lb
- Rear ( Third Liner )
- 4200 lb
