637K Wheel Tractor-Scraper

Rated Load	37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Fuel Tank Refill Capacity - Scraper	370 gal (US)
180° Curb-to-Curb Turning Width	40.12 ft
Overall Shipping Height	13.62 ft
Overall Width	12.93 ft
Top Speed - Loaded	34.7 mile/h
Scraper Capacity - Heaped	34 yd³
Width - Cut	11.5 ft
Maximum Depth of Cut	17.7 in
Tires - Scraper	37.25R35**E3
Maximum Depth of Spread	21.1 in
Scraper Capacity - Struck	24 yd³
Tires - Tractor	37.25R35**E3

Rated Engine RPM - Tractor	1900 r/min
Rated Engine RPM - Scraper	2150 r/min
Flywheel Power - Scraper	290 HP
Engine Model - Scraper	Cat C9.3
Emissions	Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Flywheel Power - Tractor	570 HP
Engine Model - Tractor	Cat C18

Flywheel Power - Tractor/Scraper	570 HP

Scraper Capacity - Heaped	34 yd³

Top Speed - Loaded	34.7 mile/h

Crankcase - Tractor	13.7 gal (US)
Crankcase - Scraper	6.5 gal (US)
Transmission System - Tractor	29 gal (US)
Hydraulic System	37.5 gal (US)
Diesel Exhaust Fluid - Scraper	5.8 gal (US)
Diesel Exhaust Fluid - Tractor	8 gal (US)
Fuel Tank	370 gal (US)
Transmission System - Scraper	12.9 gal (US)
Cooling System - Scraper	16.1 gal (US)
Cooling System - Tractor	19.8 gal (US)

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	90.2 in
Width - Inside of Bowl	134 in
Height - Scraper Blade Maximum	20 in
Length - Overall Machine - Standard	597 in
Height - Overall Shipping	163.2 in
Width - Outside Rear Tires	143.2 in
Length - Maximum (Push-Pull)	655.1 in
Extended Push Block (Push-Pull)	108 in
Width - Rear Tire Centers	96.9 in
Width - Overall Machine	155 in
Width - Tractor	137.8 in
Height - Top of Cab	147 in
Ground Clearance - Tractor	26.1 in

Overall Length	49.34 ft
Operating Weight - Empty	114950 lb

Overall Length - With Bail Down	54.59 ft
Operating Weight - Empty	119060 lb

ROPS/FOPS	ROPS/FOPS meet “ISO Standards.”
Exterior Sound Level	The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).

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

Transmission Gear - Third	7.7 mile/h
Transmission Gear - Reverse	6.2 mile/h
Transmission Gear - First	3.4 mile/h
Transmission Gear - Seventh	25.7 mile/h
Transmission Gear - Fifth	14.1 mile/h
Transmission Gear - Eighth	34.7 mile/h
Transmission Gear - Fourth	10.5 mile/h
Transmission Gear - Second	6.2 mile/h
Transmission Gear - Sixth	19 mile/h

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

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN – TRACTOR

Cat C18 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
Starting aid, ether
Braking system:
- Primary and secondary, wet disc, hydraulic actuated
- 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

Cat C9.3 engine:
- High pressure common rail fuel
- Constant lift engine brake
Electric start, 24V
Air cleaner, dry type with precleaner
Fan, mechanical driven
Ground level engine shutdown
Radiator, aluminum unit core, 9 fins per inch
Starting aid, either
Braking system:
- Primary and secondary, dry caliper, hydraulic actuated
Transmission:
- 4-speed (torque converter drive)
- Planetary power shift

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
Batteries (4) 12V, 1,000 CCA, maintenance free, high output
Alternator, 65 Amp
Electrical system, 24V
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
Scraper fenders
Overflow guard
Fast oil change
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
Wiring group
Push Pull

SERVICE INSTRUCTIONS

Film arrangement – U.S. (ANSI)
Film arrangement – International (ISO)

637K Wheel Tractor-Scraper

General

Engine

Tractor Engine

Scraper Bowl

Transmission

Service Refill Capacities

Dimensions

Non Push-Pull

Push-Pull

Cab

Safety Criteria Compliance Standards

Travel Speeds - Runout

Implement Cycle Times

NOTE

POWER TRAIN – TRACTOR

POWER TRAIN – SCRAPER

ELECTRICAL – TRACTOR

ELECTRICAL – SCRAPER

OPERATOR ENVIRONMENT – TRACTOR

FLUIDS

OTHER STANDARD EQUIPMENT – TRACTOR

OTHER STANDARD EQUIPMENT – SCRAPER

NOTE

STEERING ARRANGEMENTS

INTEGRATED TECHNOLOGIES

OTHER ATTACHMENTS

SERVICE INSTRUCTIONS