637 Wheel Tractor-Scraper

637 Wheel Tractor-Scraper

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Cat’s 637 Wheel Tractor-Scraper is engineered to conquer challenges operators face worldwide. With its strength and durability, it works in some of the most difficult conditions and materials one can ...
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Tractor Engine

Flywheel Power - Tractor/Scraper
570HP

Scraper Bowl

Scraper Capacity - Heaped
34yd³

Transmission

Top Speed - Loaded
34.7mile/h

Dimensions

Front of Tractor to Front Axle
142.2in
Axle to Vertical Hitch Pin
20in
Wheel Base
346.8in
Rear Axle - Rear of Machine
90.2in
Length - Maximum (Push-Pull)
655.1in
Width - Overall Machine
155in
Width - Rear Tire Centers
96.9in
Extended Push Block (Push-Pull)
108in
Width - Outside Rear Tires
143.2in
Width - Inside of Bowl
134in
Height - Scraper Blade Maximum
20in
Ground Clearance - Tractor
26.1in
Width - Tractor
137.8in
Length - Overall Machine - Standard
597in
Height - Overall Shipping
163.2in
Height - Top of Cab
147in

General

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

Engine

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

Service Refill Capacities

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

Non Push-Pull

Operating Weight - Empty
114950lb
Overall Length
49.34ft

Push-Pull

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

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

Implement Cycle Times

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

Be More Productive

Be More Productive

• Up to 12% 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 work environment with 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

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

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

Integrated Cat Technologies

• Monitor, manage, and enhance job site 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 the safety and security of your job site.
• Shorten the learning curve for inexperienced operators with load
assist (optional attachment).

Execute Efficiency

Execute Efficiency

• The new tractor hydraulic on-demand fan helps assist in lower 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 the
fill area.

Standard Equipment:

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
    • Wiring group
    • Push Pull
    Service Instructions
    • Film arrangement – U.S. (ANSI)
    • Film arrangement – International (ISO)