631 Wheel Tractor-Scraper

CALCULATE FINANCE

Be More Productive

Work in Comfort

Designed for Safety

Easy to Operate

Integrated Cat Technologies

Execute Efficiency

Engine
Emissions Cat® C18 engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Engine Model - Tractor Cat® C18
Rated Engine RPM - Tractor 1900 r/min (1900 r/min)
Flywheel Power - Tractor 425 kW (570 hp)
General
Overall Width 3.94 m (12.11 ft)
Overall Shipping Height 3.89 m (12.9 ft)
Scraper Capacity - Struck 18.3 mu00b3 (24 ydu00b3)
Scraper Capacity - Heaped 26 mu00b3 (34 ydu00b3)
Rated Load 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Width - Cut 3.51 m (17.7 ft)
Maximum Depth of Cut 450 mm (12.4 in)
Maximum Depth of Spread 535 mm (21.1 in)
Top Speed - Loaded 55.8 km/h (34.7 mile/h)
180u00b0 Curb-to-Curb Turning Width 12.23 m (40.12 ft)
Tires - Scraper 37.25R35**E3
Tires - Tractor 37.25R35**E3
Tractor Engine
Flywheel Power - Tractor/Scraper 425 kW (570 hp)
Scraper Bowl
Scraper Capacity - Heaped 26 mu00b3 (34 ydu00b3)
Transmission
Top Speed - Loaded 55.8 km/h (34.7 mile/h)
Travel Speeds - Runout
Transmission Gear - First 5.5 km/h (3.4 mile/h)
Transmission Gear - Second 10 km/h (6.2 mile/h)
Transmission Gear - Third 12.4 km/h (7.7 mile/h)
Transmission Gear - Fourth 16.9 km/h (10.5 mile/h)
Transmission Gear - Fifth 22.7 km/h (14.1 mile/h)
Transmission Gear - Sixth 30.6 km/h (19 mile/h)
Transmission Gear - Seventh 41.4 km/h (25.7 mile/h)
Transmission Gear - Eighth 55.8 km/h (34.7 mile/h)
Transmission Gear - Reverse 9.9 km/h (6.2 mile/h)
Service Refill Capacities
Real Wheels (Each) 9 l (2.37 gal (US))
Crankcase - Tractor 52 l (13.7 gal (US))
Transmission System 110 l (29 gal (US))
Cooling System 71 l (18.75 gal (US))
Fuel Tank 874 l (231 gal (US))
Hydraulic System 142 l (37.5 gal (US))
Diesel Exhaust Fluid (DEF) 30.5 l (8 gal (US))
Service Refill Capacities - Tractor
Windshield Washer Reservoir 5 l (1.3 gal (US))
Differential 153 l (40.41 gal (US))
Service Refill Capacities - Scraper
Final Drive - Each 33 l (8.71 gal (US))
Dimensions
Width - Overall Machine 3937 mm (155 in)
Width - Overall Machine - Ladder Down 4045 mm (159.3 in)
Width - Tractor 3662 mm (144.2 in)
Width - Rear Tire Centers 2462 mm (96.9 in)
Width - Inside of Bowl 3404 mm (134 in)
Width - Outside Bowl - Shipping Width 3635 mm (143.1 in)
Height - Overall Shipping 3892 mm (153.2 in)
Height - Top of Cab 3805 mm (149.8 in)
Front of Tractor to Front Axle 3608 mm (142 in)
Ground Clearance - Tractor 664 mm (26.1 in)
Axle to Vertical Hitch Pin 509 mm (20 in)
Height - Scraper Blade Maximum 510 mm (20 in)
Wheel Base 8808 mm (346.8 in)
Length - Overall Machine - Standard 15160 mm (596.8 in)
Length - Maximum (Push-Pull) 16643 mm (655.2 in)
Rear Axle - Rear of Machine 2744 mm (108 in)
Non Push-Pull
Overall Length 15.04 m (49.34 ft)
Operating Weight - Empty 46600 kg (102750 lb)
Push-Pull
Operating Weight - Empty 48275 kg (106430 lb)
Overall Length - With Bail Down 16.64 m (54.59 ft)
Cab
Exterior Sound Level The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
ROPS/FOPS ROPS/FOPS meet u201cISO Standards.u201d
Safety Criteria Compliance Standards
Steering System ISO 5010:2007
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Seat Belt SAE J386:FEB2006
Reverse Alarm ISO 9533:2010
Brakes ISO 3450:2011
Implement Cycle Times
Bowl Raise 3.5 s (3.5 s)
Bowl Lower 3.5 s (3.5 s)
Apron Raise 4 s (4 s)
Apron Lower 3.8 s (3.8 s)
Ejector Extend 8.5 s (8.5 s)
Ejector Retract 8.5 s (8.5 s)
Bail Raise 1.5 s (1.5 s)
Bail Lower 2.1 s (2.1 s)
Dimensions
Width - Outside Rear Tires 3636 mm (143.2 in)
General
Fuel Tank Refill Capacity - Scraper 874 l (231 gal (US))

Standard Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • POWER TRAIN – TRACTOR
    • Cat® C18
    • Compression 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
      • Throttle lock
    • Transmission:
      • 8-speed planetary power shift
      • ECPC control
      • APECS software
      • Programmable top gear selection
      • Transmission hold
      • Differential lock
      • Guard, power train
      • Standard tire spin reduction
      • Ground speed control
      • Machine speed limit
      • Differential lock protection
  • POWER TRAIN – SCRAPER
    • Braking system:
      • Primary and secondary, dry caliper, hydraulic actuated
  • ELECTRICAL – TRACTOR
    • Alternator, 150 Amp
    • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
    • Electrical system, 24V
    • Lighting system:
      • Headlights, LED
      • Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)
    • Starting/charging receptacle
  • ELECTRICAL – SCRAPER
    • Alarm, backup
    • Lighting system:
      • Brake lights, LED
      • Turn signals with hazard function, LED
  • OPERATOR ENVIRONMENT – TRACTOR
    • 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 (1)
    • Dome courtesy light
    • Horn, electric
    • T-Handle implement control
    • Mirror, rearview
    • Radio ready
    • ROPS/FOPS cab, pressurized
    • Keypad switches:
      • Throttle lock
      • Wipers/washers
      • Hazard lights
      • Retarding level select
      • Work lights on, off
      • Information mode on Messenger Display
    • Safety tab rocker switches
    • Seat belt, static two-piece
    • Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees
    • Steering wheel, tilt, telescoping, padded
    • Windows, right side emergency egress
    • Windows, sliding
    • Windows, laminated, zipped in
    • Windshield wipers, front and rear windows, includes washers
    • Door lock
    • Messenger Display
    • Gauges, warnings include:
      • Coolant temperature
      • Engine oil temperature
      • Hydraulic oil temperature
      • Diesel Particulate Filter (DPF) temperature
      • Fuel level
      • Park brake
      • Implement lockout
      • Brake system
      • Regeneration required
      • Throttle lock
      • System voltage
      • Secondary steering
      • Bail down
      • Ejector auto
      • Differential lock
      • Apron float
      • Transmission hold
      • Cushion hitch
      • High beam lights
      • Action lamp
      • Engine speed, rpm
      • Gear selection
      • DEF fill levels
  • FLUIDS
    • Extended Life Coolant to –37° C (–34° F)
  • OTHER STANDARD EQUIPMENT – TRACTOR
    • Advanced cushion hitch
    • Accumulators (cushion hitch) with Canadian Registration Number (CRN)
    • Fast oil change
    • Fenders, non-metallic
    • Heater, engine coolant 120V
    • Rims (2)
    • Tow hooks, front
    • Vandalism locks
    • Heater, engine coolant 120V
    • Steering locks
  • OTHER STANDARD EQUIPMENT – SCRAPER
    • Bowl:
      • 18.3 m3 (24 yd3), struck
      • 26 m3 (34 yd3), heaped
    • Vandalism locks
    • Rims (2)
    • Hydraulic position sensing cylinders (bowl lift and apron)

Optional Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • STEERING ARRANGEMENTS
    • Secondary Steering Arrangement
  • INTEGRATED TECHNOLOGIES
    • Sequence Assist Arrangement with Payload Estimator
    • Load Assist
    • Cat Grade Control with Load Assist
    • Advanced Tire Spin Reduction
  • OTHER ATTACHMENTS
    • Camera arrangement – Work Area Vision System (WAVS)
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Fender, scraper
    • Guard, overflow
    • Wiring group
    • Push Pull
  • SERVICE INSTRUCTIONS
    • Film arrangement – U.S. (ANSI)
    • Film arrangement – International (ISO)

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