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789D Bare Chassis

789D Bare Chassis

Caterpillar offers partial machines and systems, working with Cat dealers and Original Equipment Manufacturers (OEMs) to provide specialty machines for specific applications. Bare chassis trucks (WTR models) can be ordered with or without hoist cylinders and most product options are identical to the dump truck models. Typically, these models come equipped with higher Tractor ROPS certification ratings needed for specialty machines including water trucks, tow tractors, and fuel / lube trucks. These partial machine configurations are used in construction, demolition, waste, material, handling, quarry, and mining applications.

The Cat Water Delivery System (WDS) is available as an optional attachment with the 777 WTR, 785D WTR, and 789D WTR Off-Highway Truck Bare Chassis and includes factory installed controls in the cab, a hydraulic pump and motor, a water pump and stainless steel spray heads. Whether your goal is dust control or haul road maintenance, the Cat WDS is designed to put water to the ground in a controlled, intelligent way. The simple to operate automated system allows you to concentrate on more important safety issues like traffic, personnel and road conditions. You'll also find that the Cat WDS not only improves safety, but also reduces truck maintenance costs, conserves water and provides significant fuel savings to help your bottom line.

LRC Bare Chassis Weight without Hoist 101140 kg
Tractor ROPS 117000 kg
Nominal Water Tank Capacity 160000 l

Technicial Specifications

Weights
LRC Bare Chassis Weight without Hoist 101140 kg
LRC Bare Chassis Weight with Hoist 103700 kg
LRC Gross Vehicle Weight (Target) with Hoist 320000 kg
LRC Gross Vehicle Weight (Target) without Hoist 320000 kg
ROPS
Tractor ROPS 117000 kg
Operating Specifications
Nominal Water Tank Capacity 160000 l
Steering
Steering Standards ISO 5010:2019
Steer Angle 36 °
Turning Diameter 27.53 m
Turning Circle - Clearance Diameter 30.23 m
Engine
Engine Model Cat® 3516C HD
Rated Engine Speed 1750 r/min
Gross Power - SAE J1995 1566 kW
Rated Net Power - SAE J1349 1468 kW
Bore 170 mm
Stroke 215 mm
Displacement 78.1 l
Note Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator.
Transmission
Forward - 1 12.6 km/h
Forward - 2 17.1 km/h
Forward - 3 23.1 km/h
Forward - 4 31.2 km/h
Forward - 5 42.3 km/h
Forward - 6 57.2 km/h
Reverse 11.8 km/h
Note Maximum travel speeds with standard 37.00-R57 tires
Brakes
Brake Surface - Front 81693 cm²
Brake Surface - Rear 134590 cm²
Service Refill Capacities
Fuel Tank Capacity 2082 l
Cooling System 725 l
Crankcase 291 l
Differential - Final Drives 583 l
Steering System - Including Tank 189 l
Brake Hoist System 909 l

Advantages and Features

Tractor ROPS Rating

  • Cat® Off-Highway Truck Bare Chassis ROPS is certified to ISO 3471 Tractor criteria, to provide a higher level of protection for towing applications.

Water Truck Applications

  • Cat Off-Highway Truck Bare Chassis are rugged and reliable platforms for water truck applications in both mining and construction projects.
  • Using an off-highway truck bare chassis provides a solution that is ideal for dust suppression, road construction, fire protection, and other applications.
  • Caterpillar works with OEMs worldwide to match the appropriate bare chassis machine to the water truck application, all through your local Cat dealer, to provide the best solution for your business.

Service Truck Applications

  • Cat Off-Highway Truck Bare Chassis are rugged and reliable platforms for service truck applications in both mining and construction projects.
  • Using an off-highway truck bare chassis provides a solution that is ideal for delivering fuel and preventive maintenance lubrication to your site's machine fleet.
  • Caterpillar works with OEMs worldwide to match the appropriate bare chassis machine to the service truck application, all through your local Cat dealer, to provide the best solution for your business.

Tow Applications

  • Cat Off-Highway Truck Bare Chassis are rugged and reliable platforms for tow applications.
  • Using an off-highway truck bare chassis provides a solution that is ideal for equipment trailers and bottom dump trailers.
  • Caterpillar works with OEMs worldwide to match the appropriate bare chassis machine to the tow application, all through your local Cat dealer, to provide the best solution for your business.

Standard Equipment

  • For bare chassis standard and optional equipment, please reference the 789D Off-Highway Truck. For more information on 789D Bare Chassis options, please contact Caterpillar OEM Solutions at <a href="mailto:oem_solutions@cat.com">oem_solutions@cat.com</a>.
  • POWERTRAIN
    • Cat 3516C HD-EUI diesel engine: Ground level engine shutdown, Ether starting aid (automatic), Aftercooler (separate circuit or air to air), Elevated low idle control, Automatic starter protection, Multi-point oil pressure sensing
    • Braking System: Brake release motor (towing), Oil-cooled, Multiple-disc (front and rear) - service, retarding, parking, secondary, Automatic retarder control, Engine overspeed protection, Extended life brake disc
    • Transmission: 6-speed automatic powershift with electric control (TCC), Body-up shift inhibitor, Controlled throttle shifting, Directional shift management, Downshift/reverse shift inhibitor, Individual clutch modulation, Neutral coast inhibitor/start switch, Body-up reverse neutralizer, Programmable top gear, Lock-up torque convertor, Caterpillar flexible core radiator
    • Extended life coolant to -35° C (-30° F)
  • ELECTRICAL
    • Alarm, Back-up
    • Alternator, 105 ampere
    • Batteries, 12V (2), 93 amp/hour
    • Converter, 12V electrical
    • Electrical system, 24V, 15 amp
    • Lighting System, LED: Backup and hazard lights, Directional signals, front and rear, Headlights amd foglights, Lo-hi beam selector, Left-hand ladder/service deck, Stop/tail lights, Engine compartment, VIMS, blue light
    • Payload, indicator lights
  • OPERATOR ENVIRONMENT
    • Air Conditioner
    • Auxiliary power connection/cigarette lighter
    • Diagnostic connection port
    • Dome courtesy light
    • Entertainment radio ready: 5 amp converter, speakers, antenna, wiring harness
    • Gauges/Indicators: Air cleaner service indicator, Quad gauge panel: Air pressure, Brake oil temperature, Engine coolant temperature, Fuel level, Electric engine control fault indicator, Electric hour meter/tachometer, Speedometer, Tachometer, Transmission gear indicator, VIMS message center with universal gauge, VIMS keypad, Heater/defroster
    • Hoist, body control (electric)
    • Horn
    • Mirrors, right and left (heated)
    • ROPS cab insulated/sound suppressed
    • Seatbelt, operator, park brake safety / seatbelt trainer
    • Stairway and walkway access, 600 mm
    • Steering wheel, tilt, padded, telescopic
    • Window, electric powered, operator
    • Windshield wiper, intermittent control, and washer
  • OTHER EQUIPMENT
    • Grease injector
    • Air line dryer
    • Auto lubrication system
    • Aux "buddy" dumping quick connect
    • Aux steering quick connect (towing)
    • Body mounting group
    • Center mounted rims (6) (29x57)--(Used for 37.00 R57 tires)
    • Driveline guard (fully enclosed)
    • Fast-fill Fuel System
    • Ground level VIMS data port
    • Ground level battery disconnect
    • Rock ejectors
    • Supplemental steering (automatic)
    • Tow hooks (front)/tow pin (rear)
    • Traction control system
    • Vital Info Management System (VIMS)
    • Mounting, Water without Hoist Cylinder
  • CAT TECHNOLOGY PRODUCTS
    • Object Detection System (cameras and radar)
    • Product Link Elite

Optional Equipment

  • POWERTRAIN
    • Engine pre-lube
    • Oil cooler, rear axle
  • ELECTRICAL
    • Auxiliary work lights (1) RH side, (1) LH side
    • Lockout transmission, ground level
    • Payload, digital display
  • OPERATOR ENVIRONMENT
    • Footrest, operator
    • Deluxe Cab: includes suspended operator seat, suspended companion seat, retractable front windshield visor, cab cleanout
  • OTHER EQUIPMENT
    • Powered Stairway
    • Working at Heights
    • Rear axle, cooler
    • Cold weather: Brake oil, recirculating, Cold weather start
    • Service center: Service, 3516C, standard volume / Service, 3516C, large volume / Service, engine oil, standard
    • Fire extinguisher, portable
    • Hub odometer, kilometers
    • Wheel chocks
    • Gauge, brake wear indicator
    • Coolant, -50° C (-58° F)
  • CAT TECHNOLOGY PRODUCTS
    • Control, Road Analysis (RAC)
  • CAT WATER DELIVERY SYSTEM (WDS)
    • Water System Monitor: integrated into cab, programmable spray configurations, automatic diagnostic messages
    • Variable Hydraulic Pump Drive: 1,200 gpm at speeds of 3 to 25 mph with auto shut-off and soft startup
    • Independent Hydraulic Cooling System: minimizes overheating
    • Stainless Steel Spray Heads: maintenance free, patented design resists corrosion
    • Controls: Factory installed and integrated into cab
    • Parts & service available through global Cat dealer network
    • Water Cannon: hydraulically controlled, integrated joystick with cab controls, optional nozzles