Caterpillar 772 Rock Truck
Dimensions
Dimensions
Overall Length
28.67ft in
Overall Width
15.69ft in
Overall Height
14ft in
Wheelbase
13ft in
Ground Clearance
2.36ft in
Dump Height
27.42ft in
Dump Ground Clearance
1.83ft in
Inside Body Depth - Maximum
5.6ft in
Inside Body Length
18.21ft in
Inside Body Width
12.13ft in
Operating Width
15.59ft in
Outside Body Width
12.97ft in
Overall Body Length
26.81ft in
Loading Height - Empty
11.48ft in
Centerline Front Tire Width
10.38ft in
Centerline Of Rear Dual Tire Width
8.7ft in
Dump Clearance
1.62ft in
Engine Guard Clearance
2.34ft in
Front Canopy Height
13.83ft in
Height - Top Of Rops
13.43ft in
Overall Height - Body Raised
27.42ft in
Overall Tire Width
12.88ft in
Rear Axle - Clearance
1.84ft in
Rear Axle - Tail
8.5ft in
Wheel Base
12.99ft in
Dump
Lower Time
14.7sec
Raise Time
8.1sec
Rated Payload
100000lb
Load Capacity - Heaped
41yd3
Load Capacity - Struck
30.5yd3
Specifications
Engine
Number Of Cylinders
6
Engine Make
2236
Engine Model
C18 ACERT
Net Power
535hp
Gross Power
598hp
Power Measured @
1800rpm
Max Torque
1988lb ft
Displacement
1105cu in
Aspiration
Turbocharged
Peak Torque
1988lb ft
Bore
5.7in
Stroke
7.2in
Net Power - Iso 9249
535hp
Net Power - Sae J1349
535hp
Net Power - 80/1269/Eec
535hp
Gross Power - Sae J1995
598hp
Engine Model
Cat C18 ACERT
Rated Engine Speed
1800rpm
Net Power - Iso 9249:1997
535hp
Operational
Fuel Capacity
140gal
Cooling System Fluid Capacity
30gal
Engine Oil Capacity
14gal
Diff And Final Drive Fluid Capacity
42gal
Steering System Fluid Capacity
15gal
Brake/Hoist System Fluid Capacity
73gal
Hydraulic System Fluid Capacity
35gal
Tire Size
21.00R33(E4)
Transmission
Transmission Type
Gear
Number Of Gears - Forward
7
Number Of Gears - Reverse
1
Max Speed
49.5mph
Reverse
10.5 mile/h
Forward - 1
8mph
Forward - 2
11mph
Forward - 3
14.9mph
Forward - 4
20mph
Forward - 5
27.1mph
Forward - 6
36.5mph
Forward - 7
49.5mph
Steering
Steering Standards
ISO 5010:1992
Steer Angle
36degrees
Weights
Empty Weight
78155lb
Loaded Weight
181000lb
Weight Distribution Front - Empty
48%
Weight Distribution Rear - Empty
52%
Weight Distribution Front - Loaded
34%
Weight Distribution Rear - Loaded
66%
Tires
Standard Tire
21.00R33 (E4)
Brakes
Brake Surface - Front
216in2
Brake Surface - Rear
7794in2
Brake Standards
ISO 3450: 1996
Body Hoists
Pump Flow - High Idle
136 gal/min
Relief Valve Setting - Raise
2500 psi
Body Raise Time - High Idle
9.5 s
Body Lower Time - Float
12.5 s
Body Power Down - High Idle
12.5 s
Relief Valve Setting - Lower
500 psi
Final Drives
Planetary Ratio
4.80:1
Differential Ratio
2.74:1
Total Reduction Ratio
13.15:1
Operating Specifications
Nominal Payload Class (100%)
102000lb
Top Speed - Loaded
49.5mph
Maximum Capacity
100000lb
Body Capacity - Sae 2:1
41yd3
Target Payload Capacity
100000lb
Maximum Working Payload (110%)
112000lb
Not To Exceed Payload (120%)*
122000lb
Service Refill Capacities
Cooling System
30gal
Differential - Final Drives
22gal
Steering Tank
9gal
Steering System - Including Tank
15gal
Fuel Tank
140gal
Crankcase
16gal
Brake / Hoist / Fan Hydraulic Tank
35gal
Brake/Hoist/Fan System (Tank)
73gal
Transmission - Torque Converter Sump
14gal
Transmission - Torque Converter System - Including Sump
19gal
Weight Distributions - Approximate
Front Axle - Empty
48 %
Front Axle - Loaded
34 %
Rear Axle - Empty
52 %
Rear Axle - Loaded
66 %
Weights - Approximate
Target Gross Machine Operating Weight
181000lb
Chassis Weight
55171lb
Body Weight
22984lb
Capacity - Dual Slope - 100% Fill Factor
Struck
31.7yd3
Heaped 2:1 (Sae)
40.8yd3
Capacity - Flat Floor - 100% Fill Factor
Struck
30.5yd3
Heaped 2:1 (Sae)
41yd3
Rops
Rops/Fops Standards
.
Sound
Sound Standards
.
Suspension
Rear Axle - Oscillation
5.4degrees
Effective Cylinder Stroke - Front
9.2in
Effective Cylinder Stroke - Rear
5.9in
