637 Wheel Tractor-Scraper

General +

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

Engine +

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

Tractor Engine +

Flywheel Power - Tractor/Scraper
570 hp

Scraper Bowl +

Scraper Capacity - Heaped
34 yd³

Transmission +

Top Speed - Loaded
34.7 mile/h

Service Refill Capacities +

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

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

Non Push-Pull +

Operating Weight - Empty
114950 lb
Overall Length
49.34 ft

Push-Pull +

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

Cab +

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

Safety Criteria Compliance Standards +

Reverse Alarm
ISO 9533:2010
Brakes
ISO 3450:2011
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)
Seat Belt
SAE J386:FEB2006
Steering System
ISO 5010:2007

Travel Speeds - Runout +

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

Implement Cycle Times +

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

Open Bowl Scrapers

637

OVERVIEW

BENEFITS

Be More Productive

Work in Comfort

Designed for Safety

Easy to Operate

Integrated Cat Technologies

Execute Efficiency

Get a Quote for 637

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

MEDIA GALLERY

DOWNLOAD RESOURCES

BROWSE

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