631K Wheel Tractor-Scraper

General

Overall Shipping Height	3.89 m
Maximum Depth of Spread	535 mm
Tires - Tractor	37.25R35**E3
Fuel Tank Refill Capacity - Scraper	874 l
Scraper Capacity - Struck	18.3 m³
Scraper Capacity - Heaped	26 m³
Top Speed - Loaded	55.8 km/h
Overall Width	3.94 m
Maximum Depth of Cut	450 mm
Width - Cut	3.51 m
180° Curb-to-Curb Turning Width	12.23 m
Rated Load	37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Tires - Scraper	37.25R35**E3

Engine

Rated Engine RPM - Tractor	1900 r/min
Engine Model - Tractor	Cat C18
Emissions	Cat C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Flywheel Power - Tractor	425 kW

Tractor Engine

Flywheel Power - Tractor/Scraper

425 kW

Scraper Bowl

Scraper Capacity - Heaped

26 m³

Transmission

Top Speed - Loaded

55.8 km/h

Service Refill Capacities

Crankcase - Tractor	52 l
Transmission System	110 l
Fuel Tank	874 l
Hydraulic System	142 l
Cooling System	75 l

Dimensions

Front of Tractor to Front Axle	3612 mm
Axle to Vertical Hitch Pin	509 mm
Wheel Base	8808 mm
Rear Axle - Rear of Machine	2744 mm
Ground Clearance - Tractor	664 mm
Width - Outside Rear Tires	3636 mm
Width - Inside of Bowl	3404 mm
Width - Rear Tire Centers	2462 mm
Height - Scraper Blade Maximum	510 mm
Height - Top of Cab	3733 mm
Length - Maximum (Push-Pull)	16640 mm
Height - Overall Shipping	3892 mm
Width - Overall Machine	3937 mm
Length - Overall Machine - Standard	15164 mm
Width - Tractor	3499 mm

Non Push-Pull

Operating Weight - Empty	46600 kg
Overall Length	15.04 m

Push-Pull

Overall Length - With Bail Down	16.64 m
Operating Weight - Empty	48275 kg

Cab

Exterior Sound Level	The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
ROPS/FOPS	ROPS/FOPS meet “ISO Standards.”

Safety Criteria Compliance Standards

Reverse Alarm	ISO 9533:2010
Falling Object Protective Structure (FOPS)	ISO 3449:2005 Level II
Seat Belt	SAE J386:FEB2006
Rollover Protection Structure (ROPS)	ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Brakes	Brakes ISO 3450:2011
Steering System	ISO 5010:2007

Travel Speeds - Runout

Transmission Gear - First	5.5 km/h
Transmission Gear - Fourth	16.9 km/h
Transmission Gear - Sixth	30.6 km/h
Transmission Gear - Third	12.4 km/h
Transmission Gear - Fifth	22.7 km/h
Transmission Gear - Seventh	41.4 km/h
Transmission Gear - Reverse	9.9 km/h
Transmission Gear - Eighth	55.8 km/h
Transmission Gear - Second	10 km/h

Implement Cycle Times

Bowl Raise	3.5 s
Bail Lower	2.1 s
Apron Raise	4 s
Ejector Extend	8.5 s
Bowl Lower	3.5 s
Bail Raise	1.5 s
Ejector Retract	8.5 s
Apron Lower	3.8 s

Main Features and Benefits

Tractor Serviceability Improvement

The fuel, water and engine oil are relocated at ground level on the right hand side of the machine for easy access.

Brakes

Have been changed from an air actuated drum shoe brake to a hydraulic actuated tractor wet disc brake and a scraper dry caliper.

Tire Spin Reduction

This feature will allow the machine to control the slip of the tractor tires only.

Engine Over Speed Protection

In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.

Advanced Cushion Hitch

With similar technology as the Cat® Advanced Ride Management seat suspension, this software 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.

High Pressure Steering

K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.

Differential Lock Engagement Protection

This standard feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.

Cab Improved

The K Series cab interior improves operator comfort and visibility. The overall interior is 21% larger than the G Series cab.

Machine Speed Limit

This feature is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close to high idle.

Ground Speed Control

Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission.

Sequence Assist (Optional Attachment)

This option uses cylinder position sensors to automate bowl, apron and further implement controls throughout the four core work cycles: Dig, Haul, Unload and Return. When utilized this can reduce up to 14 individual operator commands per cycle. Sequence Assist simplifies control over the implements, reduces joystick usage, automatically controls cushion hitch, transmission hold and ejector.

Payload Estimator (Optional Attachment)

The Payload Estimator will calculate the payload of the machine in tonnes or tons by measuring the bowl lift cylinder pressures at the beginning of the loaded haul segment. This feature works best when using Sequence Assist. Using Payload Estimator during testing has achieved better than 95% accuracy when compared to actual scale weights. The Payload Estimator feature comes automatically when a machine is ordered with Sequence Assist.

Load Assist (Optional Attachment)

Is designed to help shorten the learning curve of inexperienced operators to ensure consistency and faster loading of material while reducing effort of the operator. Based on the speed of the machine, Load Assist automatically adjusts the cutting edge height to manage wheel slip and to ensure consistent and efficient loading in bulk earthmoving applications.

Cat Grade Control (Optional Attachment)

Intelligently ensures the machine does not cut below grade in the cut area or over fill in the fill area – avoiding rework and moving unnecessary material.

POWER TRAIN – TRACTOR

 Cat C18 ACERT engine with MEUI™

 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:<ul><li>Primary and secondary, wet disc, hydraulic</li><li>Parking, hydraulic-released, spring-applied</li><li>Throttle lock</li></ul>

 Transmission:<ul><li>8-speed planetary power shift</li><li>ECPC control</li><li>APECS software</li><li>Programmable top gear selection</li><li>Transmission hold</li><li>Differential lo

POWER TRAIN – SCRAPER

 Braking system:<ul><li>Primary and secondary, wet disc, hydraulic</li></ul>

ELECTRICAL – TRACTOR

 Alternator, 150 Amp

 Batteries (4), 12V, 1,000 CCA, maintenance free, high output

 Electrical system, 24V

 Lighting system:<ul><li>Headlights, LED</li><li>Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)</li></ul>

 Starting/charging receptacle

Alternator, 150 Amp

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system:Headlights, LEDTurn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)

Starting/charging receptacle

ELECTRICAL – SCRAPER

 Alarm, backup

 Lighting system:<ul><li>Brake lights, LED</li><li>Turn signals with hazard function, LED</li></ul>

Alarm, backup

Lighting system:Brake lights, LEDTurn 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:<ul><li>Throttle lock</li><li>Wipers/washers</li><li>Hazard lights</li><li>Retarding level select</li><li>Work lights on, off</li><li>Information mode on Messenger Disp

 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:<ul><li>Coolant temperature</li><li>Engine oil temperature</li><li>Hydraulic oil temperature</li><li>Fuel level</li><li>Park brake</li><li>Implement lockout<

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:<ul><li>18.3 m3 (24 yd3), struck</li><li>26 m3 (34 yd3), heaped</li></ul>

 Vandalism locks

 Rims (2)

 Hydraulic position sensing cylinders (bowl lift and apron)

Bowl:18.3 m3 (24 yd3), struck26 m3 (34 yd3), heaped

Vandalism locks

Rims (2)

Hydraulic position sensing cylinders (bowl lift and apron)

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)

Film arrangement – International (ISO)

360° Exterior View 360° Interior View