637K Wheel Tractor – Coal Bowl Scraper - NMC Cat | Caterpillar Dealer

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Description

Technical Specifications

Benefits and Features

Equipment

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637 coal bowls are longer and higher than standard wheel tractor scraper bowls, allowing them to haul 38 m (50 yd) of low density loose coal. The bowls are designed and built to specifically deliver in coming loose coal to the stock pile and reserve stock piled coal to the feeder system.

Engine
Flywheel Power - Tractor/Scraper	425 kW (570 hp)/216 kW (290 hp)
Operating Specifications
Scraper Capacity - Heaped	50 yd³
Top Speed - Loaded	34.7 mile/h
General
Width - Cut	11.5 ft
Flywheel Power - Tractor	570 hp
Overall Width	12.93 ft
Scraper Capacity - Heaped	50 yd³
Rated Engine RPM - Scraper	2150 r/min
Tires - Scraper	37.25R35**E3
Top Speed - Loaded	34.7 mile/h
Overall Length	609.5 in
Operating Weight - Empty	117782 lb
Tires - Tractor	37.25R35**E3
Flywheel Power - Scraper	290 hp
Emissions	Cat C9.3 and Cat C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.
180° Curb-to-Curb Turning Width	42.59 ft
Engine Model - Tractor	Cat C18
Engine Model - Scraper	Cat C9.3
Scraper Capacity - Struck	41 yd³
Rated Engine RPM - Tractor	1900 r/min
Rated Load	34 472 kg (76,000 lb)/34.20 tonnes (38 tons)
Fuel Tank Refill Capacity - Scraper	370 gal (US)
Maximum Depth of Cut	17.7 in
Maximum Depth of Spread	21.1 in
Overall Shipping Height	13.62 ft
Implement Cycle Times
Bail Lower	2.1 s
Bowl Raise	3.5 s
Ejector Extend	8.5 s
Apron Raise	4 s
Apron Lower	3.8 s
Bail Raise	1.5 s
Bowl Lower	3.5 s
Ejector Retract	8.5 s
Cab
Exterior Sound Power Level	The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
ROPS/FOPS	Meet ISO standards
Dimensions
Width - Overall Machine	155 in
Height - Overall Shipping	163 in
Length - Overall Machine - Standard	609.5 in
Height - Top of Cab	147 in
Rear Axle - Rear of Machine	95.4 in
Width - Inside of Bowl	134 in
Width - Rear Tire Centers	96.9 in
Width - Outside Rear Tires	143.2 in
Height - Scraper Blade Maximum	21.2 in
Axle to Vertical Hitch Pin	20 in
Ground Clearance - Tractor	26.1 in
Width - Tractor	137.8 in
Front of Tractor to Front Axle	142.2 in
Wheel Base	377 in
Safety Criteria Compliance Standards
Seat Belt	SAE J386:FEB2006
Reverse Alarm	ISO 9533:2010
Falling Object Protective Structure (FOPS)	ISO 3449:2005 Level II
Brakes	ISO 3450:2011
Rollover Protection Structure (ROPS)	ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Steering System	ISO 5010:2007
Service Refill Capacities
Transmission System - Scraper	12.9 gal (US)
Diesel Exhaust Fluid - Tractor	8 gal (US)
Diesel Exhaust Fluid - Scraper	5.8 gal (US)
Crankcase - Scraper	6.5 gal (US)
Cooling System - Scraper	16.1 gal (US)
Fuel Tank	370 gal (US)
Transmission System - Tractor	29 gal (US)
Cooling System - Tractor	19.8 gal (US)
Hydraulic System	37.5 gal (US)
Crankcase - Tractor	13.7 gal (US)
Travel Speeds - Runout
Transmission Gear - Reverse	6.2 mile/h
Transmission Gear - Sixth	19 mile/h
Transmission Gear - Fourth	10.5 mile/h
Transmission Gear - First	3.4 mile/h
Transmission Gear - Seventh	25.7 mile/h
Transmission Gear - Third	7.7 mile/h
Transmission Gear - Fifth	14.1 mile/h
Transmission Gear - Eighth	34.7 mile/h
Transmission Gear - Second	6.2 mile/h

Be More Productive

• Up to 12% improvement in productivity.
• Large size capacity coal scraper bowl to accommodate low density loose coal.
• 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

• 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

• 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 operations.
• 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's speed by canceling the throttle command and engaging the engine compression brake.

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® – use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your job site.
• 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.
• 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:

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 CAA, 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
  - Fuel level
  - Park brake
  - Implement lockout
  - Brake system
  - 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
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
- Coal Bowl
  - 31 m3 (41 yd3), struck
  - 38 m3 (50 yd3), heaped
- Vandalism locks
- Scraper fenders
- Fast oil change
- Rims (2)
- Hydraulic position sensing cylinders (bowl lift and apron)

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
- Advanced Tire Spin Reduction
Other Attachments
- Camera arrangement – WAVS
- Cab beacon
- Air horn
- Air horn and beacon
- Wiring group
Service Instructions
- Film arrangement – U.S. (ANSI)
- Film arrangement – International (ISO)