631 Wheel Tractor-Scraper

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Description

Technical Specifications

Benefits and Features

Equipment

360 View

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.

Tractor Engine
Flywheel Power - Tractor/Scraper	570 hp
Scraper Bowl
Scraper Capacity - Heaped	34 yd³
Transmission
Top Speed - Loaded	34.7 mile/h
Dimensions
Front of Tractor to Front Axle	142.2 in
Axle to Vertical Hitch Pin	20 in
Wheel Base	346.8 in
Rear Axle - Rear of Machine	108 in
Width - Inside of Bowl	134 in
Ground Clearance - Tractor	26.1 in
Length - Maximum (Push-Pull)	655.1 in
Width - Rear Tire Centers	96.9 in
Height - Scraper Blade Maximum	20 in
Width - Outside Rear Tires	143.2 in
Length - Overall Machine - Standard	597 in
Width - Overall Machine	155 in
Height - Top of Cab	147 in
Width - Tractor	137.8 in
Height - Overall Shipping	153.2 in
General
Top Speed - Loaded	34.7 mile/h
180° Curb-to-Curb Turning Width	40.12 ft
Width - Cut	11.5 ft
Maximum Depth of Cut	17.7 in
Tires - Scraper	37.25R35**E3
Overall Width	12.93 ft
Scraper Capacity - Struck	24 yd³
Scraper Capacity - Heaped	34 yd³
Tires - Tractor	37.25R35**E3
Fuel Tank Refill Capacity - Scraper	231 gal (US)
Rated Load	37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Overall Shipping Height	12.75 ft
Maximum Depth of Spread	21.1 in
Engine
Engine Model - Tractor	Cat C18
Rated Engine RPM - Tractor	1900 r/min
Flywheel Power - Tractor	570 hp
Emissions	Cat C18 engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Service Refill Capacities
Hydraulic System	37.5 gal (US)
Transmission System	29 gal (US)
Cooling System	19.8 gal (US)
Diesel Exhaust Fluid (DEF)	8 gal (US)
Fuel Tank	231 gal (US)
Crankcase - Tractor	13.7 gal (US)
Non Push-Pull
Operating Weight - Empty	102750 lb
Overall Length	49.34 ft
Push-Pull
Overall Length - With Bail Down	54.59 ft
Operating Weight - Empty	106430 lb
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	6.2 mile/h
Transmission Gear - Sixth	19 mile/h
Transmission Gear - First	3.4 mile/h
Transmission Gear - Second	6.2 mile/h
Transmission Gear - Seventh	25.7 mile/h
Transmission Gear - Fifth	14.1 mile/h
Transmission Gear - Third	7.7 mile/h
Transmission Gear - Eighth	34.7 mile/h
Transmission Gear - Fourth	10.5 mile/h
Implement Cycle Times
Apron Raise	4 s
Ejector Extend	8.5 s
Bowl Lower	3.5 s
Ejector Retract	8.5 s
Bail Raise	1.5 s
Bowl Raise	3.5 s
Apron Lower	3.8 s
Bail Lower	2.1 s

Be More Productive

• Up to 8% improvement in productivity.
• Advanced productivity electronic control system (APECS) allows
the engine and transmission to communicate on a high level. This
communication allows the machine to better utilize 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 replaces top gear selection, allowing the machine to find the correct gear that works best for the engine and transmission. Pulling the load in the correct gear, in most cases, results in lower engine load factor and lower fuel burn.
• Auto-stall assists in quickly bringing the transmission to an operating temperature at startup when the machine is working in a cold climate region.
• Cat®Payload Estimator for scrapers is an earthmoving solution for optimal payload and jobsite efficiency. Payload Estimator achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Payload Estimator is optimized to be used with sequence assist, which provides increased productivity with
less operator effort. Payload Estimator is an automatic feature
when ordered with sequence assist.

Work in Comfort

Work in comfort

• Reduce up to 14 individual operator commands per cycle with sequence assist (optional attachment).
• Steer with less effort using the newly designed high-pressure
steering system.
• Enjoy interior improvements and a more ergonomic workenvironment 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

• Get in and out of the cab easier with the new powered access
ladder system (optional attachment).
• Enhance an operator’s awareness of site surroundings with the optional work area vision system (WAVS).
• Seat belt indicator provides visual and audible alerts when the seat
belt is not in use.
• Advanced cushion hitch allows the cushion hitch to prevent end stroke by having the ability to predict end stroke events and manage the rate of dampening, resulting in reduced hitch maintenance and improved operator ride in rough conditions.
• Easy ground level access to fuel, water, and engine oil.

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 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®– useit 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 load
assist (optional attachment).

Execute Efficiency

• The new tractor hydraulic on-demand fan helps assist in lowering 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 Control (optional attachment) intelligently ensures the
machine does not cut below grade in a cut area or overfill in thefill 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
- 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)