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Off-Highway Trucks

Caterpillar builds Off-Highway Trucks specifically for work in mines, construction and quarries. Our Off-Highway Trucks are pass-matched with Cat Wheel Loaders and Hydraulic Excavators to speed cycle times and maximize productivity.

773E Off-Highway Truck

  • Specification Summary

  • Nominal Payload Class (100%)44.8 tonnes
  • Top Speed – Loaded62.2 km/h
  • Engine ModelCat 3412E
  • Gross Power – SAE J1995567 kW
  • Net Power – SAE J1349537 kW
  • Product Brochure

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Product Details

Operating Specifications

Nominal Payload Class (100%) 44.8 tonnes
Top Speed – Loaded 62.2 km/h

Engine

Engine Model Cat 3412E
Gross Power – SAE J1995 567 kW
Net Power – SAE J1349 537 kW
Net Power – 80/1269/EEC These engine ratings apply at 2,000 rpm when tested under the specified condition for the specified standard.
Net Power – ISO 9249 Power rating conditions based on standard conditions of 25° C (77° F) and 99 kPa (29.32 in Hg) dry barometer, using 35&d
Bore 137 mm
Stroke 152 mm
Displacement 27 L
Cylinders 12
Engine Power – ISO 14396 Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, muffler and alter
Engine Speed 2000 RPM
Net Torque 3436 N·m
Peak Torque Speed 33%

Capacity – Dual Slope – 100% Fill Factor

Struck 26.6 m3
Heaped 2:1 (SAE) 35.2 m3

Weight Distributions – Approximate

Front Axle – Empty 46.6%
Rear Axle – Empty 33.8%

Transmission

Forward 1 9.9 km/h
Forward 3 13.9 km/h
Forward 5 18.8 km/h
Forward 6 45.9 km/h
Forward 7 25.2 km/h
Reverse 34.1 km/h

Final Drives

Differential Ratio 3.64:1
Planetary Ratio 4.8:1
Total Reduction Ratio 17.48:1

Brakes

Brake Standards 1395
Brake Surface Area – Front 61269 cm2
Brake Surface Area – Rear Meets ISO 3450: 2011 standards up to 99 300 kg (219,000 lb) gross operating weight.

Service Refill Capacities

Fuel Tank 700 L
Cooling System 122 L
Steering System (Includes Tank) 60 L
Crankcase 68 L
Differentials 155 L
Final Drives (each) 34 L
Fuel Tank 133 L
Torque Converter/Transmission System 307 L

Body Hoists

Pump Flow – High Idle 491 L/min
Body Raise Time – High Idle 17225 Seconds

Suspension

Rear Axle Oscillation 8.1°
Empty Loaded Cylinder Stroke Front 234 mm
Empty Loaded Cylinder Stroke Rear 149 mm

Sound

Sound Standards ISO 6393:2008, SAE J1166:2008

ROPS

ROPS/FOPS Standards ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008.

Steering

Turning Diameter – Front 22 m
Steering Standards Steering standards meet SAE J1511 FEB94 and ISO 5010:2007.
Steer Angle 31°
Turning Circle Clearance Diameter 25 m

Tires

Standard Tire 24.00R35 (E4)
  • POWER TRAIN
    •  Cat 3412E HEUI engine: – 12 cylinder diesel – Air-to-air aftercooler (ATAAC) – Hydraulic electronic unit injection – Air cleaner with precleaner (2) – Automatic cold mode idle control – Turbocharger (2)
    •  Braking system: – Oil-cooled, multiple disc (rear) – Parking/secondary – Caliper disc (front) – Manual retarder (utilizes rear oil cooled, multiple disc brakes) – Brake release motor (towing)
    •  Transmission: – Seven speed automatic power shift with ICM control – Auto neutral idle – Body up shift inhibitor – Controlled throttle shifting – Directional shift management – Downshift inhibitor – Neutral coast i
  • SUSPENSION SYSTEMS
    •  Hydro pneumatic suspension at front and rear
  • ELECTRICAL
    •  Alarm, backup
    •  Alternator, 115 ampere
    •  Auxiliary jump start receptacle
    •  Batteries, maintenance-free, 12V (2), 190 amp-hour
    •  Electrical system, 24V
    •  Lighting system: – Backup light (halogen) – Directional signals/hazard warning, (front and rear LED) – Headlights, (halogen) with dimmer – Hazardous lights (LED) – Stop/tail lights (LED)
  • OPERATOR ENVIRONMENT
    •  HVAC
    •  Ashtray and cigarette lighter
    •  Coat hook
    •  Diagnostic connection port
    •  Entertainment radio ready: – Speakers, antenna, wiring harness
    •  Air cleaner service indicator
    •  Transmission oil temperature gauge
    •  Air system pressure gauge
    •  Brake oil temperature gauge
    •  Coolant temperature gauge
    •  Fuel level, gauge
    •  Tachometer
    •  Speedometer with odometer
    •  Hour meter
    •  Engine overspeed indicator
    •  Transmission gear indicator
    •  Load counter, automatic: – Advisor display
    •  Hoist lever
    •  Horn
    •  Mirrors, left and right
    •  ROPS cab, insulated/sound suppressed
    •  Seat, Caterpillar comfort, full air suspension and retractable four point seat belt with shoulder harness
    •  Audio visual seat belt remainder
    •  Seat, trainer with a lap belt
    •  Steering wheel, padded/tilt/telescopic
    •  Storage compartment
    •  Sun visor
    •  Throttle lock
    •  Right side access door
    •  Left side power window
    •  Windshield wiper, intermittent, and washer
    •  Tinted, laminated glass
  • TECHNOLOGY PRODUCTS
    •  Product Link™
    •  Telematics
    •  MineStar™ Ready
  • GUARDS
    •  Engine crankcase
    •  Driveline, operator safety vandalism protection lock
  • FLUIDS
    •  Extended life coolant to –35° C (–30° F)
  • OTHER STANDARD EQUIPMENT
    •  Airline dryer
    •  Body mounting group
    •  Body safety pin (secures body in up position)
    •  Body down indicator
    •  CD ROM parts book
    •  Center mounted rims
    •  Ground level battery disconnect
    •  Ground level engine shutdown
    •  Ground level grease fittings
    •  Reservoirs: – Transmission – Steering – Brake, converter and hoist
    •  Rock ejectors
    •  Supplemental steering, automatic
    •  Tie down eyes
    •  Tow hooks, front/tow pin, rear
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