631 - Tier 2

631 - Tier 2

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

Flywheel Power - Tractor/Scraper 425 kW
Scraper Capacity - Heaped 26 m³
Exterior Sound Level The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).

Technicial Specifications

Tractor Engine
Flywheel Power - Tractor/Scraper 425 kW
Scraper Bowl
Scraper Capacity - Heaped 26 m³
Cab
Exterior Sound Level The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
ROPS/FOPS ROPS/FOPS meet “ISO Standards.”
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 Brakes ISO 3450:2011
Transmission
Top Speed - Loaded 55.8 km/h
Implement Cycle Times
Bowl Raise 3.5 s
Bowl Lower 3.5 s
Apron Raise 4 s
Apron Lower 3.8 s
Ejector Extend 8.5 s
Ejector Retract 8.5 s
Bail Raise 1.5 s
Bail Lower 2.1 s
Engine
Emissions Cat® C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor Cat® C18
Rated Engine RPM - Tractor 1900 r/min
Flywheel Power - Tractor 425 kW
Travel Speeds - Runout
Transmission Gear - First 5.5 km/h
Transmission Gear - Second 10 km/h
Transmission Gear - Third 12.4 km/h
Transmission Gear - Fourth 16.9 km/h
Transmission Gear - Fifth 22.7 km/h
Transmission Gear - Sixth 30.6 km/h
Transmission Gear - Seventh 41.4 km/h
Transmission Gear - Eighth 55.8 km/h
Transmission Gear - Reverse 9.9 km/h
General
Overall Width 3.94 m
Overall Shipping Height 3.89 m
Scraper Capacity - Struck 18.3 m³
Scraper Capacity - Heaped 26 m³
Rated Load 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Width - Cut 3.51 m
Maximum Depth of Cut 450 mm
Maximum Depth of Spread 535 mm
Top Speed - Loaded 55.8 km/h
180° Curb-to-Curb Turning Width 12.23 m
Tires - Tractor 37.25R35**E3
Tires - Scraper 37.25R35**E3
Fuel Tank Refill Capacity - Scraper 874 l
Push-Pull
Overall Length - With Bail Down 16.64 m
Operating Weight - Empty 48275 kg
Service Refill Capacities
Real Wheels (Each) 9 l
Crankcase - Tractor 52 l
Transmission System 110 l
Cooling System 71 l
Fuel Tank 874 l
Hydraulic System 142 l
Diesel Exhaust Fluid (DEF) 30.5 l
Service Refill Capacities - Tractor
Windshield Washer Reservoir 5 l
Differential 153 l
Service Refill Capacities - Scraper
Final Drive - Each 33 l
Dimensions
Width - Overall Machine 3937 mm
Width - Overall Machine - Ladder Down 4045 mm
Width - Tractor 3662 mm
Width - Rear Tire Centers 2462 mm
Width - Inside of Bowl 3404 mm
Width - Outside Bowl - Shipping Width 3635 mm
Height - Overall Shipping 3892 mm
Height - Top of Cab 3805 mm
Front of Tractor to Front Axle 3608 mm
Ground Clearance - Tractor 664 mm
Axle to Vertical Hitch Pin 509 mm
Height - Scraper Blade Maximum 510 mm
Wheel Base 8808 mm
Length - Overall Machine - Standard 15164 mm
Length - Maximum (Push-Pull) 16640 mm
Rear Axle - Rear of Machine 2744 mm
Width - Outside Rear Tires 3636 mm
Non Push-Pull
Operating Weight - Empty 46600 kg
Overall Length 15.04 m

Advantages and Features

Be More Productive

        
  • The Advanced Productivity Electronic Control System (APECS) allows
        the engine and transmission to communicate on a high level. This
        communication allows the machine to utilize better the power
        and torque the engine is producing. The net result is moving more
        material.
    •     
  • Use Ground Speed Control to set the desired top speed and the machine will find the gear that works best for the engine and the
        transmission, providing a lower fuel burn.
    •     
  • The machine speed limit feature allows the machine to maintain a
        set top speed instead of relying on top gear selector.
    •     
  • Auto-Stall assists in quickly bringing the transmission to an
        operating temperature at start-up when the machine is working in a cold climate region.
    •     
  • Cat® Payload for scrapers is an earthmoving solution for optimal payload and jobsite efficiency. Cat Payload achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Cat Payload is optimized to be used with Sequence Assist, which provides increased productivity with less operator
        effort.
    •     
  • Enhance productivity through the usage of Cat Payload with
        Sequence Assist.










Work in Comfort

        
  • Reduce up to 14 individual operator commands per cycle with Sequence Assist.
    •     
  • Steer with less effort using the newly designed high-pressure steering system.
    •     
  • Enjoy interior improvements and a more ergonomic work
        environment with a 21% larger cab than the G Series cab.
    •     
  • Intuitive, ergonomic controls keep operators focused on their work.
    •     
  • Maintain desired cab temperature with automatic temperature control.
    •     






Designed for Safety



        


  • Enhance an operator’s awareness of site surroundings with the work area vision system (WAVS).
    •     
  • Get in and out of the cab easier with the new powered access ladder system (optional attachment).
    •     
  • Seat belt indicator provides visual and audible alerts when the seatbelt is not in use.
    •     
  • Advanced Cushion Hitch allows the cushion hitch to prevent endstroke by predicting endstroke events and managing the rate of dampening, resulting in reduced hitch maintenance and improved operator ride in rough conditions.
    •     
  • The fuel fill, fuel filter, engine oil filter, engine oil change, and water drain are easily accessible at ground level.





Easy to Operate

        
  • The spacious cab features easy, intuitive controls and excellent visibility
    . The cab provides a comfortable working environment for all-day
     operation.
    •     



  • Cat advanced ride management (ARM) seat suspension reduces end
     stroke movement of the load cylinder for a smoother ride.
    •     





  • Engine overspeed protection will automatically engage with no operator
     input when the machine is in eighth gear. The machine will assist in slowing the machine speed by canceling the throttle command and engaging the engine compression brake.






Integrated Cat Technologies

        
  • Monitor, manage, and enhance jobsite operations.
    •     
  • Hit the target grade faster and more accurately with Cat Grade technologies. Finish jobs in fewer passes and with less operator effort, saving you time and helping to increase profit.
    •     
  • Product Link™ collects machine data that can be viewed online through web and mobile applications (optional attachment).
    •     
  • Access information anytime, anywhere with VisionLink® – use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your
        jobsite.
    •     
  • Shorten the learning curve for inexperienced operators with
        Sequence Assist and Load Assist (included with Cat Grade
        attachment).






Execute Efficiency

        
  • The new tractor hydraulic on -demand fan helps assist in lower fuel consumption.
    •     
  • Using draft-arm overflow guards diverts material away from the bowl, preventing material from getting caught between the draft arms and the bowl sides.
    •     
  • Cat Grade (optional attachment) intelligently ensures the machine does not cut below grade in a cut area or overfill in the fill area.






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
    • Muffler
    • 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, wet disc, hydraulic
  • 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
      • Fuel level
      • Park brake
      • Implement lockout
      • Brake system
      • 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
  • 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
    • Year of manufacture plate
  • SERVICE INSTRUCTIONS
    • Film arrangement – International (ISO)