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637K Wheel Tractor-Scraper

Cat’s 637K 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 find.

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

Width - Inside of Bowl

134in

Height - Scraper Blade Maximum

20in

Length - Overall Machine - Standard

597in

Height - Overall Shipping

163.2in

Width - Outside Rear Tires

143.2in

Length - Maximum (Push-Pull)

655.1in

Extended Push Block (Push-Pull)

108in

Width - Rear Tire Centers

96.9in

Width - Overall Machine

155in

Width - Tractor

137.8in

Height - Top of Cab

147in

Ground Clearance - Tractor

26.1in

General

Rated Load

37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)

Fuel Tank Refill Capacity - Scraper

370gal (US)

180° Curb-to-Curb Turning Width

40.12ft

Overall Shipping Height

13.62ft

Overall Width

12.93ft

Top Speed - Loaded

34.7mile/h

Scraper Capacity - Heaped

34yd³

Width - Cut

11.5ft

Maximum Depth of Cut

17.7in

Tires - Scraper

37.25R35**E3

Maximum Depth of Spread

21.1in

Scraper Capacity - Struck

24yd³

Tires - Tractor

37.25R35**E3

Engine

Rated Engine RPM - Tractor

1900r/min

Rated Engine RPM - Scraper

2150r/min

Flywheel Power - Scraper

290HP

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

570HP

Engine Model - Tractor

Cat C18

Service Refill Capacities

Crankcase - Tractor

13.7gal (US)

Crankcase - Scraper

6.5gal (US)

Transmission System - Tractor

29gal (US)

Hydraulic System

37.5gal (US)

Diesel Exhaust Fluid - Scraper

5.8gal (US)

Diesel Exhaust Fluid - Tractor

8gal (US)

Fuel Tank

370gal (US)

Transmission System - Scraper

12.9gal (US)

Cooling System - Scraper

16.1gal (US)

Cooling System - Tractor

19.8gal (US)

Non Push-Pull

Overall Length

49.34ft

Operating Weight - Empty

114950lb

Push-Pull

Overall Length - With Bail Down

54.59ft

Operating Weight - Empty

119060lb

Cab

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).

Safety Criteria Compliance Standards

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

Travel Speeds - Runout

Transmission Gear - Third

7.7mile/h

Transmission Gear - Reverse

6.2mile/h

Transmission Gear - First

3.4mile/h

Transmission Gear - Seventh

25.7mile/h

Transmission Gear - Fifth

14.1mile/h

Transmission Gear - Eighth

34.7mile/h

Transmission Gear - Fourth

10.5mile/h

Transmission Gear - Second

6.2mile/h

Transmission Gear - Sixth

19mile/h

Implement Cycle Times

Bail Lower

2.1s

Ejector Extend

8.5s

Apron Lower

3.8s

Bowl Raise

3.5s

Bowl Lower

3.5s

Apron Raise

4s

Bail Raise

1.5s

Ejector Retract

8.5s

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 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)

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)

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