Exterior View
Interior View

631 Wheel Tractor-Scraper

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
570hp
Scraper Capacity – Heaped
34yd³
Top Speed – Loaded
34.7mile/h
Front of Tractor to Front Axle
142.2in
Axle to Vertical Hitch Pin
20in
Wheel Base
346.8in
Rear Axle – Rear of Machine
108in
Width – Inside of Bowl
134in
Ground Clearance – Tractor
26.1in
Length – Maximum (Push-Pull)
655.1in
Width – Rear Tire Centers
96.9in
Height – Scraper Blade Maximum
20in
Width – Outside Rear Tires
143.2in
Length – Overall Machine – Standard
597in
Width – Overall Machine
155in
Height – Top of Cab
147in
Width – Tractor
137.8in
Height – Overall Shipping
153.2in
Top Speed – Loaded
34.7mile/h
180° Curb-to-Curb Turning Width
40.12ft
Width – Cut
11.5ft
Maximum Depth of Cut
17.7in
Tires – Scraper
37.25R35**E3
Overall Width
12.93ft
Scraper Capacity – Struck
24yd³
Scraper Capacity – Heaped
34yd³
Tires – Tractor
37.25R35**E3
Fuel Tank Refill Capacity – Scraper
231gal (US)
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Overall Shipping Height
12.75ft
Maximum Depth of Spread
21.1in
Engine Model – Tractor
Cat C18
Rated Engine RPM – Tractor
1900r/min
Flywheel Power – Tractor
570hp
Emissions
Cat C18 engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Hydraulic System
37.5gal (US)
Transmission System
29gal (US)
Cooling System
19.8gal (US)
Diesel Exhaust Fluid (DEF)
8gal (US)
Fuel Tank
231gal (US)
Crankcase – Tractor
13.7gal (US)
Operating Weight – Empty
102750lb
Overall Length
49.34ft
Overall Length – With Bail Down
54.59ft
Operating Weight – Empty
106430lb
ROPS/FOPS
ROPS/FOPS meet “ISO Standards.”
Exterior Sound Level
The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
Seat Belt
SAE J386:FEB2006
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)
Brakes
ISO 3450:2011
Steering System
ISO 5010:2007
Reverse Alarm
ISO 9533:2010
Transmission Gear – Reverse
6.2mile/h
Transmission Gear – Sixth
19mile/h
Transmission Gear – First
3.4mile/h
Transmission Gear – Second
6.2mile/h
Transmission Gear – Seventh
25.7mile/h
Transmission Gear – Fifth
14.1mile/h
Transmission Gear – Third
7.7mile/h
Transmission Gear – Eighth
34.7mile/h
Transmission Gear – Fourth
10.5mile/h
Apron Raise
4s
Ejector Extend
8.5s
Bowl Lower
3.5s
Ejector Retract
8.5s
Bail Raise
1.5s
Bowl Raise
3.5s
Apron Lower
3.8s
Bail Lower
2.1s
  • 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)
  • 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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* Offer valid from October 1, 2024 through December 31, 2024 on new 313 through 317 Cat® excavators sold by participating Cat dealers to customers in the USA or Canada. Purchase must occur during offer period. Offer subject to machine availability and credit approval by Cat Financial. Not all customers will qualify. Offer may change without prior notice and cannot be combined with any other offers. Additional terms and conditions may apply.

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