631 Wheel Tractor-Scraper
US
Metric
Overview
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.
General
Top Speed - Loaded
34.70 mile/h
55.80 km/h
180° Curb-to-Curb Turning Width
40.12 ft
12.23 m
Width - Cut
11.50 ft
3.51 m
Maximum Depth of Cut
17.70 in
450.00 mm
Tires - Scraper
37.25R35**E3
Overall Width
12.93 ft
3.94 m
Scraper Capacity - Struck
24.00 yd³
18.30 m³
Scraper Capacity - Heaped
34.00 yd³
26.00 m³
Tires - Tractor
37.25R35**E3
Fuel Tank Refill Capacity - Scraper
231.00 gal (US)
874.00 l
Rated Load
37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Overall Shipping Height
12.75 ft
3.89 m
Maximum Depth of Spread
21.10 in
535.00 mm
Engine
Engine Model - Tractor
Cat C18
Rated Engine RPM - Tractor
1900.00 r/min
1900.00 r/min
Flywheel Power - Tractor
570.00 HP
425.00 kW
Emissions
Cat C18 engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Tractor Engine
Flywheel Power - Tractor/Scraper
570.00 HP
425.00 kW
Scraper Bowl
Scraper Capacity - Heaped
34.00 yd³
26.00 m³
Transmission
Top Speed - Loaded
34.70 mile/h
55.80 km/h
Service Refill Capacities
Hydraulic System
37.50 gal (US)
142.00 l
Transmission System
29.00 gal (US)
110.00 l
Cooling System
19.80 gal (US)
75.00 l
Diesel Exhaust Fluid (DEF)
8.00 gal (US)
30.50 l
Fuel Tank
231.00 gal (US)
874.00 l
Crankcase - Tractor
13.70 gal (US)
52.00 l
Dimensions
Front of Tractor to Front Axle
142.20 in
3612.00 mm
Axle to Vertical Hitch Pin
20.00 in
509.00 mm
Wheel Base
346.80 in
8808.00 mm
Rear Axle - Rear of Machine
108.00 in
2744.00 mm
Width - Inside of Bowl
134.00 in
3404.00 mm
Ground Clearance - Tractor
26.10 in
664.00 mm
Length - Maximum (Push-Pull)
655.10 in
16640.00 mm
Width - Rear Tire Centers
96.90 in
2462.00 mm
Height - Scraper Blade Maximum
20.00 in
510.00 mm
Width - Outside Rear Tires
143.20 in
3636.00 mm
Length - Overall Machine - Standard
597.00 in
15164.00 mm
Width - Overall Machine
155.00 in
3937.00 mm
Height - Top of Cab
147.00 in
3733.00 mm
Width - Tractor
137.80 in
3499.00 mm
Height - Overall Shipping
153.20 in
3892.00 mm
Non Push-Pull
Operating Weight - Empty
102750.00 lb
46600.00 kg
Overall Length
49.34 ft
15.04 m
Push-Pull
Overall Length - With Bail Down
54.59 ft
16.64 m
Operating Weight - Empty
106430.00 lb
48275.00 kg
Cab
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).
Safety Criteria Compliance Standards
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
Travel Speeds - Runout
Transmission Gear - Reverse
6.20 mile/h
9.90 km/h
Transmission Gear - Sixth
19.00 mile/h
30.60 km/h
Transmission Gear - First
3.40 mile/h
5.50 km/h
Transmission Gear - Second
6.20 mile/h
10.00 km/h
Transmission Gear - Seventh
25.70 mile/h
41.40 km/h
Transmission Gear - Fifth
14.10 mile/h
22.70 km/h
Transmission Gear - Third
7.70 mile/h
12.40 km/h
Transmission Gear - Eighth
34.70 mile/h
55.80 km/h
Transmission Gear - Fourth
10.50 mile/h
16.90 km/h
Implement Cycle Times
Apron Raise
4.00 s
4.00 s
Ejector Extend
8.50 s
8.50 s
Bowl Lower
3.50 s
3.50 s
Ejector Retract
8.50 s
8.50 s
Bail Raise
1.50 s
1.50 s
Bowl Raise
3.50 s
3.50 s
Apron Lower
3.80 s
3.80 s
Bail Lower
2.10 s
2.10 s
Features
Be More Productive
Work in Comfort
Designed for Safety
Easy to Operate
Integrated Cat Technologies
Execute Efficiency
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
- Braking system:
- 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)
- Bowl:
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)