Caterpillar 777D Rock Truck
Dimensions
Dimensions
Overall Length
32.1ft in
Overall Width
20.02ft in
Overall Height
16.41ft in
Wheelbase
15ft in
Ground Clearance
2.46ft in
Dump Height
32.71ft in
Dump Ground Clearance
2.87ft in
Inside Body Depth - Maximum
6.3ft in
Inside Body Length
23.73ft in
Inside Body Width
17.06ft in
Operating Width
20.03ft in
Outside Body Width
18.12ft in
Overall Body Length
31.3ft in
Overall Canopy Width
19.11ft in
Overall Height - Body Raised
33ft in
Loading Height - Empty
14.37ft in
Centerline Front Tire Width
13.69ft in
Centerline Of Rear Dual Tire Width
11.75ft in
Dump Clearance
3.1ft in
Engine Guard Clearance
2.33ft in
Front Canopy Height
16.61ft in
Height - Top Of Rops
14.8ft in
Overall Tire Width
17.27ft in
Rear Axle - Clearance
2.5ft in
Rear Axle - Tail
9.11ft in
Wheel Base
14.99ft in
Dump
Rated Payload
200000lb
Load Capacity - Heaped
79.14yd3
Load Capacity - Struck
54.94yd3
Raise Time
15sec
Specifications
Engine
Number Of Cylinders
8
Engine Make
2236
Engine Model
3508A
Gross Power
1000hp
Net Power
938hp
Max Torque
3476.2lb ft
Displacement
2105cu in
Torque Measured @
1300rpm
Torque Rise
23%
Bore
6.7in
Stroke
7.5in
Net Power - Cat
938hp
Net Power - Iso 9249
938hp
Net Power - Sae J1349
938hp
Net Power - 80/1269/Eec
938hp
Gross Power - Sae J1995
1000hp
Engine Model
Cat 3508B EUI
Flywheel Power
938hp
Rated Engine Speed
1750rpm
Operational
Fuel Capacity
300.4gal
Cooling System Fluid Capacity
85.9gal
Engine Oil Capacity
32.8gal
Diff And Final Drive Fluid Capacity
87gal
Steering System Fluid Capacity
22.2gal
Brake/Hoist System Fluid Capacity
109.7gal
Hydraulic System Fluid Capacity
36.5gal
Transmission
Transmission Type
automatic power shift
Number Of Gears - Forward
7
Number Of Gears - Reverse
1
Max Speed
37.6mph
Reverse
7.4 mile/h
Forward - 1
6.5mph
Forward - 2
8.9mph
Forward - 3
12mph
Forward - 4
16.2mph
Forward - 5
21.9mph
Forward - 6
29.4mph
Forward - 7
39.9mph
Steering
Steering Standards
SAE J1511 OCT90, ISO 5010:1992 (E)
Steer Angle
31.8degrees
Weights
Empty Weight
155000lb
Loaded Weight
355010.5lb
Weight Distribution Front - Empty
45.4%
Weight Distribution Rear - Empty
54.6%
Weight Distribution Front - Loaded
33.3%
Weight Distribution Rear - Loaded
66.7%
Tires
Standard Tire
27.00-R49 (E4)
Brakes
Brake Surface - Front
432in2
Brake Surface - Rear
15828in2
Brake Standards
ISO 3450: 1996; SAE J1473 OCT90
Body Hoists
Pump Flow - High Idle
119 gal/min
Relief Valve Setting - Raise
2750 psi
Body Raise Time - High Idle
15 s
Body Lower Time - Float
13 s
Body Power Down - High Idle
13 s
Relief Valve Setting - Lower
3450 psi
Final Drives
Planetary Ratio
7.00:1
Differential Ratio
2.74:1
Total Reduction Ratio
19.16:1
Operating Specifications
Circle Clearance Diameter
85.5ft in
Nominal Payload Class (100%)
178920lb
Top Speed - Loaded
39.9mph
Body Capacity - Struck
55.1yd3
Maximum Capacity
178920lb
Raise Time
15 s
Lower Time
14 s
Steer Angle
31.8degrees
Body Capacity - Sae 2:1
78.6yd3
Service Refill Capacities
Cooling System
86gal
Differential - Final Drives
87gal
Steering Tank
15gal
Steering System - Including Tank
22gal
Fuel Tank
300gal
Torque Converter - Transmission System - Including Sump
36.5gal
Torque Converter - Brake - Hoist Hydraulic Tank
66gal
Brake Hoist System - Includes Tank
109.7gal
Torque Converter - Brake - Hoist System - Including Tank
133gal
Weight Distributions - Approximate
Front Axle - Empty
47 %
Front Axle - Loaded
33 %
Rear Axle - Empty
53 %
Rear Axle - Loaded
67 %
Weights - Approximate
Operating Weight - Empty
141749lb
Operating Weight - Loaded
355000lb
Target Gross Machine Operating Weight
360000lb
Chassis Weight
107100lb
Body Weight
34800lb
Capacity - Dual Slope - 100% Fill Factor
Struck
55yd3
Heaped 2:1 (Sae)
78.6yd3
Rops
Rops/Fops Standards
SAE J1040 MAY94, ISO 3471:1997
Sound
Sound Standards
ANSI/SAE J1166 MAY90, SAE J88 JUN96
Suspension
Rear Axle - Oscillation
5.4degrees
Effective Cylinder Stroke - Front
12.5in
Effective Cylinder Stroke - Rear
6.5in
Approximate Weights - Dual Slope
Body
34785lb
Chassis
106964lb
Approximate Weights - Dual Slope Lined
Body
46840lb
