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Overview

Engineered for performance, designed for comfort, built to last.

Engine

Units:
Engine Model Cat® 3512C HD Cat® 3512C HD Less
Gross Power - SAE J1995 1450.0 hp 1082.0 kW Less
Rated Power 1450.0 hp 1082.0 kW Less
Net Power - Cat 1348.0 hp 1005.0 kW Less
Net Power - ISO 9249 1348.0 hp 1005.0 kW Less
Net Power - 80/1269/EEC 1348.0 hp 1005.0 kW Less
Torque Rise 23.0 % 23.0 % Less
Bore 6.7 in 170.0 mm Less
Stroke 8.4 in 215.0 mm Less
Displacement 3573.6 in3 58.56 L Less
Net Power 1348.0 hp 1005.0 kW Less
Net Power - SAE J1349 1348.0 hp 1005.0 kW Less

Weights - Approximate

Gross Machine Operating Weight (GMW) 550000.0 lb 249476.0 kg Less
Body Weight Range 20 831 - 30 623 kg 45,924 - 67,512 lb 20 831 - 30 623 kg 45,924 - 67,512 lb Less
Minimum/Maximum Operating Chassis Weight Range (OCW) 83 304 - 84 668 kg 183,654 - 186,661 lb 83 304 - 84 668 kg 183,654 - 186,661 lb Less
Minimum/Maximum Operating Chassis Weight Range Empty (EOMW) 106 218 - 117 597 kg 234,170 - 259,257 lb 106 218 - 117 597 kg 234,170 - 259,257 lb Less

Operating Specifications

Top Speed - Loaded 34.0 mph 54.8 km/h Less
Steer Angle 36.0 Degrees 36.0 Degrees Less
Machine Clearance Turning Diameter 108.9 ft 33.2 m Less
Maximum Target Payload 157.0 tons 143.0 tonnes Less
Minimum Target Payload 144.0 tons 131.0 tonnes Less
Target Payload (Dual Slope)* 146.0 tons 133.0 tonnes Less
Turning Diameter - Front 97.7 ft 29.8 m Less

Final Drives

Differential Ratio 2.10:1 2.10:1 Less
Planetary Ratio 10.83:1 10.83:1 Less
Total Reduction Ratio 22.75:1 22.75:1 Less

Transmission

Forward 1 7.5 mph 12.1 km/h Less
Forward 2 10.2 mph 16.3 km/h Less
Forward 3 13.8 mph 22.2 km/h Less
Forward 4 18.6 mph 29.9 km/h Less
Forward 5 25.2 mph 40.6 km/h Less
Forward 6 34.0 mph 54.8 km/h Less
Reverse 6.8 mph 11.0 km/h Less

Suspension

Effective Cylinder Stroke - Front 12.1 in 306.5 mm Less
Effective Cylinder Stroke - Rear 6.5 in 165.0 mm Less

Body Hoists

Pump Flow - High Idle 198.0 gal/min 750.0 L/min Less
Relief Valve Setting - Raise 2500.0 psi 17238.0 kPa Less
Body Raise Time - High Idle 15.2 Seconds 15.2 Seconds Less
Body Lower Time - Float 16.2 Seconds 16.2 Seconds Less
Body Power Down - High Idle 15.9 Seconds 15.9 Seconds Less
Body Lower Time - High Idle 15.9 Seconds 15.9 Seconds Less

Brakes

Brake Surface - Rear 13908.0 in2 89729.0 cm2 Less
Standards SAE J1473 OCT90 ISO 3450-1985 SAE J1473 OCT90 ISO 3450-1985 Less
Brake Surface - Front 9497.0 in2 61270.0 cm2 Less

Weight Distributions - Approximate

Front Axle - Empty* 45-46% 45-46% Less
Front Axle - Loaded (Target) 33.0 % 33.0 % Less
Rear Axle - Empty* 54-55% 54-55% Less
Rear Axle - Loaded (Target) 67.0 % 67.0 % Less

Service Refill Capacities

Fuel Tank (standard) 500.0 gal 1893.0 L Less
Cooling System 100.0 gal 379.0 L Less
Crankcase 54.0 gal 204.0 L Less
Steering Tank 24.0 gal 90.0 L Less
Steering System (Includes Tank) 31.0 gal 117.0 L Less
Brake/Hoist Hydraulic Tank 89.0 gal 337.0 L Less
Brake/Hoist System (Includes Tank) 169.0 gal 641.0 L Less
Differential and Final Drives 115.0 gal 436.0 L Less
Torque Converter/Transmission System (Includes Sump) 65.51 gal 248.0 L Less

Tires

Standard Tires 33.00-R51 (E3 & E4) 33.00-R51 (E3 & E4) Less

ROPS

ROPS Standards SAE J1040 APR88 ISO 3471:1994 SAE J1040 APR88 ISO 3471:1994 Less

Sound

Sound Standards ANSI/SAE J1166 MAY90 SAE J88 APR95 ANSI/SAE J1166 MAY90 SAE J88 APR95 Less

Steering

Steering Standards SAE J1511 OCT90 ISO 5010:1992 SAE J1511 OCT90 ISO 5010:1992 Less

Body - Dual Slope

Body Weight 49150.0 lb 22295.0 kg Less
Heaped SAE (2:1) 102.0 yd3 78.0 m3 Less

Body - X

Body Weight 55468.0 lb 25160.0 kg Less
Heaped SAE (2:1) 111.0 yd3 85.0 m3 Less

Power Train - Engine

The Cat® 3512C HD engine delivers high power and reliability.


Power Train - Transmission

Unmatched operating efficiency in all mining conditions.


Engine/Power Train Integration

Electronically optimizes overall truck performance.


Structures/Suspension/Steering

Rugged Cat designs are the backbone of the 785D mining truck’s durability.


Operator’s Station

Designed for operator safety and comfort, superior control and high productivity.


Cat Brake System

Superior control gives the operator confidence to focus on productivity.


Truck Body Systems

Caterpillar designed and built for the toughest mining applications.


Monitoring System

Vital machine health and payload data keeps the 785D performing.


Safety

Cat mining machines and systems: Safety is priority one.


Sustainability

A variety of features improve sustainability in areas of decreasing waste, extending component life and lowering emissions levels.


Serviceability

Less time spent on maintenance means more time on the haul roads.


Customer Support

Cat dealers have what it takes to keep mining haul trucks productive.


785D Standard Equipment

ELECTRICAL
  • Alarm, Back-up
  • Alternator (105 A)
  • Batteries, 93Ah, Low-maintenance, 12V (2)
  • Converter, 12V electrical
  • Electrical System, 24V, 15A
  • Lighting System

OPERATOR ENVIRONMENT
  • Air Conditioner
  • Ashtray/cigarette lighter
  • Coat hook
  • Diagnostic connection port
  • Dome courtesy light
  • Entertainment radio ready
  • Gauges/Indicators
  • Heater/defroster
  • Horn
  • Hoist body control, electric
  • Integrated Object Detection System
  • ROPS cab insulated/sound suppressed
  • Storage compartment
  • Seatbelt, 75 mm (3 in), retractable
  • Steering wheel, tilt, padded, telescopic
  • Sun visor
  • Tinted glass
  • Window, electric powered, operator
  • Windshield wiper, intermittent control and washer

POWER TRAIN
  • Cat 3512C HD-EUI diesel engine
  • Braking System
  • Transmission

OTHER STANDARD EQUIPMENT
  • Air Line Dryer (2)
  • Body Mounting Group
  • Auto lubrication system (Lincoln)
  • Dumping, Auxiliary Quick Connect for “Buddy Dumping”
  • Steering, Auxiliary Quick Connect for Towing
  • Continuous rear axle filtration
  • Diagonal stairway, 600 mm (24 in)
  • Driveline Operator Safety Guard
  • Fast-fill Fuel System
  • VIMS Dataport
  • Battery Disconnect
  • High speed crankcase oil change
  • Reservoirs (Separate)
  • S·O·SSM sample ports
  • Supplemental steering (automatic)
  • Tie Down Eyes
  • Tow Hooks, Front
  • Traction Control System
  • Vandalism Protection Locks
  • Vital Information Management System (VIMS) includes:

785D Optional Equipment

BODIES
  • Body, X
  • MSD II (Mine Specific Design)
  • Dual Slope
  • Custom Body Options

BODY EXTENSIONS
  • Tail
  • Wrap around

LINERS
  • Full-length liner
  • Tail extension wrap-around

OPERATOR ENVIRONMENT
  • Footrest, operator
  • Hose, cab clean-out
  • Vacuum, cab clean-out

POWER TRAIN
  • Pre-lube, engine
  • Oil renewal system
  • Oil cooler, rear axle

COLD WEATHER
  • Starting, Cold Weather

TIRES AND RIMS
  • Spare rims

INFORMATION MANAGEMENT
  • Control, Road Analysis (RAC)

SERVICE CENTER
  • Service Center, Wiggins

MISCELLANEOUS
  • Fire extinguisher, portable
  • Hub Odometer, Kilometers
  • Hub Odometer, Miles
  • Wheel Chocks
  • Heater, Diesel fuel

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