Caterpillar 785C
Browse All Caterpillar or Rock Truck Models
Contents:
Dimensions
| Overall Length | 36.25 ft in (11024 mm) |
| Overall Width | 20.6 ft in (6277 mm) |
| Overall Height | 19 ft in (5769 mm) |
| Wheelbase | 17 ft in (5182 mm) |
| Ground Clearance | 3.24 ft in (987 mm) |
| Dump Height | 36.83 ft in (11207 mm) |
| Dump Ground Clearance | 4.21 ft in (1284 mm) |
Dump
| Dump Angle | 49 degrees |
| Load Capacity - Struck | 96 yd3 (74 m3) |
| Load Capacity - Heaped | 119 yd3 (91 m3) |
| Rated Payload | 300000 lb (136077.72 kg) |
| Lower Time | 15.9 sec |
| Raise Time | 15.2 sec |
Engine
| Number Of Cylinders | 16 |
| Engine Make | 2236 |
| Engine Model | 3512B-EUI |
| Gross Power | 1451 hp (1082 kw) |
| Net Power | 1348 hp (1005.3 kw) |
| Power Measured @ | 1750 rpm |
| Aspiration | Turbocharged |
| Displacement | 3158 cu in (51.8 L) |
| Torque Rise | 23 % |
| Bore | 6.7 in (170.2 mm) |
| Stroke | 7.5 in (190.5 mm) |
| Net Power - Cat | 1348 hp (1005.3 kw) |
| Net Power - Iso 9249 | 1348 hp (1005.3 kw) |
| Net Power - Sae J1349 | 1348 hp (1005.3 kw) |
| Net Power - 80/1269/Eec | 1348 hp (1005.3 kw) |
| Gross Power - Sae J1995 | 1450 hp (1081.3 kw) |
| Engine Model | Cat 3512B-EUI |
Operational
| Fuel Capacity | 500 gal (1893 L) |
| Cooling System Fluid Capacity | 100 gal (379 L) |
| Engine Oil Capacity | 24 gal (90 L) |
| Diff And Final Drive Fluid Capacity | 115 gal (436 L) |
| Steering System Fluid Capacity | 31 gal (117 L) |
| Brake/Hoist System Fluid Capacity | 89 gal (337 L) |
| Hydraulic System Fluid Capacity | 169.4 gal (641 L) |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 75 amps |
| Tire Size | 33.00-R51 tires |
Transmission
| Transmission Type | Six-speed planetary |
| Number Of Gears - Forward | 6 |
| Number Of Gears - Reverse | 1 |
| Max Speed | 34 mph (54.8 km/h) |
| Reverse | 6.8 mile/h |
| Forward - 1 | 7.5 mph (12.1 km/h) |
| Forward - 2 | 10.2 mph (16.5 km/h) |
| Forward - 3 | 13.8 mph (22.3 km/h) |
| Forward - 4 | 18.6 mph (30 km/h) |
| Forward - 5 | 25.2 mph (40.6 km/h) |
| Forward - 6 | 34 mph (54.8 km/h) |
Steering
| Steering Standards | SAE J1511 OCT90 ISO 5010:1992 |
Weights
| Empty Weight | 225200 lb (102150 kg) |
| Loaded Weight | 550000 lb (249480 kg) |
| Weight Distribution Front - Empty | 47 % |
| Weight Distribution Rear - Empty | 53 % |
| Weight Distribution Front - Loaded | 33 % |
| Weight Distribution Rear - Loaded | 67 % |
Tires
| Standard Tires | 33.00-R51 (E4) 33.00-R51 (E3) |
Brakes
| Brake Surface - Front | 9497 in2 (6.2 m2) |
| Brake Surface - Rear | 13908 in2 (9 m2) |
| Standards | SAE J1473 OCT90 ISO 3450-1985 |
Body Hoists
| Pump Flow - High Idle | 198 gal/min |
| Relief Valve Setting - Raise | 2500 psi |
| Body Raise Time - High Idle | 15.2 s |
| Body Lower Time - Float | 16.2 s |
| Body Power Down - High Idle | 15.9 s |
| Body Lower Time - High Idle | 15.9 s |
Final Drives
| Planetary Ratio | 10.83:1 |
| Differential Ratio | 2.10:1 |
| Total Reduction Ratio | 22.75:1 |
Operating Specifications
| Top Speed - Loaded | 34 mph (54.8 km/h) |
| Raise Time | 15.2 s |
| Lower Time | 15.9 s |
| Steer Angle | 36 degrees |
| Turning Diameter - Front | 90.2 ft in (27.5 m) |
| Nominal Payload Capacity | 300000 lb (136077.6 kg) |
| Machine Clearance Turning Diameter | 100.4 ft in (30.7 m) |
| Sae (2:1) Capacity | 102 yd3 (78 m3) |
Service Refill Capacities
| Cooling System | 100 gal (378.6 L) |
| Differential - Final Drives | 115 gal (435.4 L) |
| Steering Tank | 24 gal (90.9 L) |
| Steering System - Including Tank | 31 gal (117.4 L) |
| Brake Hoist System - Includes Tank | 169 gal (639.8 L) |
| Crankcase | 54 gal (204.5 L) |
| Brake/Hoist Hydraulic Tank | 89 gal (337 L) |
| Torque Converter/Transmission System - Including Sump | 65.6 gal (248 L) |
| Fuel Tank - Standard | 500 gal (1892.8 L) |
Weight Distributions - Approximate
| Front Axle - Empty | 47 % |
| Front Axle - Loaded | 33 % |
| Rear Axle - Empty | 53 % |
| Rear Axle - Loaded | 67 % |
Weights - Approximate
| Chassis Weight | 164134 lb (74450 kg) |
| Gross Machine Operating Weight | 550000 lb (249475.9 kg) |
| Operating Weight - Empty - Flat Floor Body | 225200 lb (102149.1 kg) |
| Operating Weight - Empty - Dual-Slope Body | 211035 lb (95723.9 kg) |
Capacity - Dual Slope - 100% Fill Factor
| Struck | 74 yd3 (56.6 m3) |
| Heaped (Sae 2:1) | 102 yd3 (78 m3) |
Capacity - Flat Floor - 100% Fill Factor
| Struck | 96 yd3 (73.4 m3) |
| Heaped (Sae 2:1) | 119 yd3 (91 m3) |
Rops
| Rops Standards | SAE J1040 APR88 ISO 3471:1994 |
Sound
| Sound Standards | ANSI/SAE J1166 MAY90 SAE J88 APR95 |
Suspension
| Effective Cylinder Stroke - Front | 12.1 in (307.4 mm) |
| Effective Cylinder Stroke - Rear | 6.5 in (165.1 mm) |
Approximate Weights - Dual Slope
| Body | 46865 lb (21257.7 kg) |
| Chassis | 164134 lb (74450 kg) |
| Front Axle - Empty | 47 % |
| Front Axle - Loaded | 33 % |
| Rear Axle - Empty | 53 % |
| Rear Axle - Loaded | 67 % |
| Gross Weight - Empty | 211035 lb (95723.9 kg) |
Approximate Weights - Flat Floor
| Body | 56630 lb (25687 kg) |
| Chassis | 164134 lb (74450 kg) |
| Front Axle - Empty | 47 % |
| Front Axle - Loaded | 33 % |
| Rear Axle - Empty | 53 % |
| Rear Axle - Loaded | 67 % |
| Gross Weight - Empty | 225200 lb (102149.1 kg) |
| Standard Liner | 4400 lb (1995.9 kg) |
