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Cat

631 Partial Wheel Tractor-Scraper

Tractor Engine

Cat® C18

Cat® C18

Flywheel Power – Tractor

570 HP

425 kW

Top Speed – Loaded

34.7 mile/h

55.8 km/h

Overview

Caterpillar offers partial wheel tractor-scraper power units designed for specialty machines that complement the traditional Cat® product line. These tractor-only configurations are available for purchase directly from Caterpillar OEM Solutions. They can be leveraged for a variety of final machines, including water pulls, elevating scrapers, lowboy trailer power units, and more. With improvements in productivity combined with enhancements in operator comfort and new safety features – Powered Access System and effective wet disc brakes – this machine offers high returns on time and investment.

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631
631
water pull
water pull
water pull
water pull

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Exterior

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Details

Specifications

Spec Value
Tractor Engine Cat® C18 Cat® C18
Flywheel Power – Tractor 570 HP 425 kW
Note Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA. Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
Spec Value
Top Speed – Loaded 34.7 mile/h 55.8 km/h
1 Forward 3.4 mile/h 5.5 km/h
2 Forward 6.2 mile/h 10 km/h
3 Forward 7.7 mile/h 12.4 km/h
4 Forward 10.5 mile/h 16.9 km/h
5 Forward 14.1 mile/h 22.7 km/h
6 Forward 19 mile/h 30.6 km/h
7 Forward 25.7 mile/h 41.4 km/h
8 Forward 34.7 mile/h 55.8 km/h
Reverse 6.2 mile/h 9.9 km/h
Spec Value
Width – 180° Turn 40.2 ft 12.23 m
Spec Value
Brakes ISO 3450:2011 ISO 3450:2011
ROPS/FOPS ROPS: ISO 3471:2008. FOPS:ISO 3449:2005 Level II. ROPS: ISO 3471:2008. FOPS:ISO 3449:2005 Level II.
Cab Seat Belt: SAE J386:FEB2006 Seat Belt: SAE J386:FEB2006
Spec Value
Fuel Tank 231 gal (US) 874 l
Crankcase 13.7 gal (US) 52 l
Transmission 29 gal (US) 110 l
Differential 41.7 gal (US) 158 l
Final Drive – Each 5 gal (US) 19 l
Cooling System 19.8 gal (US) 142 l
Hydraulic Reservoir 37.5 gal (US) 83 l
Windshield Washer 1.3 gal (US) 5 l

Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

  • Cat® C18 engine with Mechanically Actuated Electronic Unit Injection (MEUI™)
  • Transmission: 8-speed planetary powershift, ECPC control, APECS software, programmable top gear selection, transmission hold, differential lock, guard – power train, ground speed control, machine speed limit
  • Cat engine brake
  • Electric start, 24V
  • Air cleaner, dry type with precleaner
  • Fan, hydraulic
  • Ground level engine shutdown
  • Radiator, aluminum unit core, 9 fins per inch
  • Guard, crankcase
  • Starting aid, ether
  • Braking system: primary and secondary, wet disc, hydraulic; parking, hydraulic-released, spring-applied

ELECTRICAL

  • Alternator, 115 ampere
  • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
  • Electrical system, 24V
  • Lighting system: LED
  • Starting/charging receptacle

OPERATOR ENVIRONMENT

  • HVAC system, heat, AC, defrost
  • Thermostat control of HVAC system
  • Coat hook
  • Lunchbox platform with holding strap
  • Diagnostic connection (2)
  • 12V power ports (2)
  • Differential lock
  • Dome courtesy light
  • Horn, electric
  • T-handle implement control
  • Radio ready
  • ROPS/FOPS cab, pressurized
  • Keypad switches: rear engine start; throttle lock; wipers/washers; hazard lights; worklights on, off; information mode; messenger display; safety tab rocker switches, parking brake
  • Seat belt, static two-piece
  • Windows, sliding
  • Windows, laminated, zipped in
  • Windshield wipers, front and rear windows, includes washers
  • Mirror, rearview
  • Door lock
  • Messenger display
  • Display gauges, warnings include: coolant temp; engine oil temp; hydraulic oil temp; DPF temp; fuel level; park brake; implement lockout; brake system, regeneration required; throttle lock; system voltage; secondary steering; bail down; differential lock; apron float; transmission hold; high beam lights; action lamp; engine speed, rpm; gear selection; DPF fill levels
  • Safety tab rocker switches
  • Seat: Cat Advanced Ride Management (ARM), Cat Comfort Series III, rotates 30 degrees
  • Steering wheel, tilt, telescoping, padded
  • Windows, right side emergency egress
  • Messenger display

FLUIDS

  • Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

  • Advanced cushion hitch
  • Accumulators (cushion hitch and brake) with Canadian registration number (CRN)
  • Tow pin, front
  • Fenders, non-metallic
  • Heater, engine coolant 120V

OTHER ATTACHMENTS

  • Fast-fill fuel tank

Optional Equipment

OTHER ATTACHMENTS

  • Camera arrangement: Work Area Vision System (WAVS)
  • Cab beacon
  • Air horn
  • Air horn and beacon
  • Kingbolt housing
  • Rear wheel arrangement (set of 2)
  • Scraper draft arm package
  • Steering cylinder group (set of 2)

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