Exterior View
Interior View

637K Wheel Tractor – Coal Bowl Scraper

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.

Flywheel Power – Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)
Scraper Capacity – Heaped
50yd³
Top Speed – Loaded
34.7mile/h
Transmission Gear – First
3.4mile/h
Transmission Gear – Seventh
25.7mile/h
Transmission Gear – Third
7.7mile/h
Transmission Gear – Fifth
14.1mile/h
Transmission Gear – Eighth
34.7mile/h
Transmission Gear – Second
6.2mile/h
Transmission Gear – Reverse
6.2mile/h
Transmission Gear – Sixth
19mile/h
Transmission Gear – Fourth
10.5mile/h
Apron Raise
4s
Apron Lower
3.8s
Bail Raise
1.5s
Bowl Lower
3.5s
Ejector Retract
8.5s
Bail Lower
2.1s
Bowl Raise
3.5s
Ejector Extend
8.5s
Width – Outside Rear Tires
143.2in
Height – Scraper Blade Maximum
21.2in
Axle to Vertical Hitch Pin
20in
Ground Clearance – Tractor
26.1in
Width – Tractor
137.8in
Front of Tractor to Front Axle
142.2in
Width – Overall Machine
155in
Height – Overall Shipping
163in
Length – Overall Machine – Standard
609.5in
Height – Top of Cab
147in
Rear Axle – Rear of Machine
95.4in
Width – Inside of Bowl
134in
Width – Rear Tire Centers
96.9in
Wheel Base
377in
Operating Weight – Empty
117782lb
Tires – Tractor
37.25R35**E3
Flywheel Power – Scraper
290HP
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
42.59ft
Engine Model – Tractor
Cat C18
Engine Model – Scraper
Cat C9.3
Scraper Capacity – Struck
41yd³
Rated Engine RPM – Tractor
1900r/min
Rated Load
34 472 kg (76,000 lb)/34.20 tonnes (38 tons)
Fuel Tank Refill Capacity – Scraper
370gal (US)
Maximum Depth of Cut
17.7in
Maximum Depth of Spread
21.1in
Overall Shipping Height
13.62ft
Width – Cut
11.5ft
Flywheel Power – Tractor
570HP
Overall Width
12.93ft
Scraper Capacity – Heaped
50yd³
Rated Engine RPM – Scraper
2150r/min
Tires – Scraper
37.25R35**E3
Top Speed – Loaded
34.7mile/h
Overall Length
609.5in
Cooling System – Tractor
19.8gal (US)
Hydraulic System
37.5gal (US)
Crankcase – Tractor
13.7gal (US)
Transmission System – Scraper
12.9gal (US)
Diesel Exhaust Fluid – Tractor
8gal (US)
Diesel Exhaust Fluid – Scraper
5.8gal (US)
Crankcase – Scraper
6.5gal (US)
Cooling System – Scraper
16.1gal (US)
Fuel Tank
370gal (US)
Transmission System – Tractor
29gal (US)
ROPS/FOPS
Meet ISO standards
Exterior Sound Power Level
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
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
Seat Belt
SAE J386:FEB2006
  • 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)
  • 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)

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