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Caterpillar 789C Rock Truck Dimensions & Specs

Picture of a Caterpillar 789C Rock Truck
Picture of a Caterpillar 789C Rock Truck
Picture of a Caterpillar 789C Rock Truck

Transport a Caterpillar 789C Rock Truck

Transporting a Caterpillar 789C Rock Truck is a process that involves multiple steps, each requiring careful attention and expertise. First, the Caterpillar 789C Rock Truck is prepared for transport, which may involve disassembling larger components and securing fragile parts.During the loading phase, special equipment like forklifts or cranes may be used

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Dimensions

Dimensions
AOverall Length
39.92 ft in
BOverall Width
25.18 ft in
COverall Height
20.25 ft in
DWheelbase
18.68 ft in
EGround Clearance
3.83 ft in
FDump Height
39.25 ft in
GDump Ground Clearance
4.37 ft in
Dump
HDump 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

Specifications

Engine
Number Of Cylinders
16
Engine Make
2236
Engine Model
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
Engine Model
Cat 3516B EUI
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

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