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Caterpillar

637K Wheel Tractor-Scraper

Flywheel Power – Tractor/Scraper

570 HP

425 kW

Scraper Capacity – Heaped

34 yd³

26 m³

Top Speed – Loaded

34.7 mile/h

55.8 km/h

Overview

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.

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Exterior

360 Exterior View

Interior

360 Interior View

Features

Details

Specifications

Spec Value
Rated Load 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons) 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Fuel Tank Refill Capacity – Scraper 370 gal (US) 1400 l
180° Curb-to-Curb Turning Width 40.12 ft 12.23 m
Overall Shipping Height 13.62 ft 4.15 m
Overall Width 12.93 ft 3.94 m
Top Speed – Loaded 34.7 mile/h 55.8 km/h
Scraper Capacity – Heaped 34 yd³ 26 m³
Width – Cut 11.5 ft 3.51 m
Maximum Depth of Cut 17.7 in 450 mm
Tires – Scraper 37.25R35**E3 37.25R35**E3
Maximum Depth of Spread 21.1 in 535 mm
Scraper Capacity – Struck 24 yd³ 18.3 m³
Tires – Tractor 37.25R35**E3 37.25R35**E3
Spec Value
Rated Engine RPM – Tractor 1900 r/min 1900 r/min
Rated Engine RPM – Scraper 2150 r/min 2150 r/min
Flywheel Power – Scraper 290 HP 216 kW
Engine Model – Scraper Cat C9.3 Cat C9.3
Emissions Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards. Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Flywheel Power – Tractor 570 HP 425 kW
Engine Model – Tractor Cat C18 Cat C18
Spec Value
Flywheel Power – Tractor/Scraper 570 HP 425 kW
Spec Value
Scraper Capacity – Heaped 34 yd³ 26 m³
Spec Value
Top Speed – Loaded 34.7 mile/h 55.8 km/h
Spec Value
Crankcase – Tractor 13.7 gal (US) 52 l
Crankcase – Scraper 6.5 gal (US) 24.5 l
Transmission System – Tractor 29 gal (US) 110 l
Hydraulic System 37.5 gal (US) 142 l
Diesel Exhaust Fluid – Scraper 5.8 gal (US) 22 l
Diesel Exhaust Fluid – Tractor 8 gal (US) 30.5 l
Fuel Tank 370 gal (US) 1400 l
Transmission System – Scraper 12.9 gal (US) 49 l
Cooling System – Scraper 16.1 gal (US) 61 l
Cooling System – Tractor 19.8 gal (US) 75 l
Spec Value
Front of Tractor to Front Axle 142.2 in 3612 mm
Axle to Vertical Hitch Pin 20 in 509 mm
Wheel Base 346.8 in 8808 mm
Rear Axle – Rear of Machine 90.2 in 2292 mm
Width – Inside of Bowl 134 in 3404 mm
Height – Scraper Blade Maximum 20 in 510 mm
Length – Overall Machine – Standard 597 in 15164 mm
Height – Overall Shipping 163.2 in 4145 mm
Width – Outside Rear Tires 143.2 in 3636 mm
Length – Maximum (Push-Pull) 655.1 in 16640 mm
Extended Push Block (Push-Pull) 108 in 2744 mm
Width – Rear Tire Centers 96.9 in 2462 mm
Width – Overall Machine 155 in 3937 mm
Width – Tractor 137.8 in 3499 mm
Height – Top of Cab 147 in 3733 mm
Ground Clearance – Tractor 26.1 in 664 mm
Spec Value
Overall Length 49.34 ft 15.04 m
Operating Weight – Empty 114950 lb 52140 kg
Spec Value
Overall Length – With Bail Down 54.59 ft 16.64 m
Operating Weight – Empty 119060 lb 54005 kg
Spec Value
ROPS/FOPS ROPS/FOPS meet “ISO Standards.” ROPS/FOPS meet “ISO Standards.”
Exterior Sound Level The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A). The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
Spec Value
Seat Belt SAE J386:FEB2006 SAE J386:FEB2006
Reverse Alarm ISO 9533:2010 ISO 9533:2010
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 21 282 kg (46,919 lb) ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Brakes ISO 3450:2011 ISO 3450:2011
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II ISO 3449:2005 Level II
Steering System ISO 5010:2007 ISO 5010:2007
Spec Value
Transmission Gear – Third 7.7 mile/h 12.4 km/h
Transmission Gear – Reverse 6.2 mile/h 9.9 km/h
Transmission Gear – First 3.4 mile/h 5.5 km/h
Transmission Gear – Seventh 25.7 mile/h 41.95 km/h
Transmission Gear – Fifth 14.1 mile/h 22.7 km/h
Transmission Gear – Eighth 34.7 mile/h 55.8 km/h
Transmission Gear – Fourth 10.5 mile/h 16.9 km/h
Transmission Gear – Second 6.2 mile/h 10 km/h
Transmission Gear – Sixth 19 mile/h 30.6 km/h
Spec Value
Bail Lower 2.1 s 2.1 s
Ejector Extend 8.5 s 8.5 s
Apron Lower 3.8 s 3.8 s
Bowl Raise 3.5 s 3.5 s
Bowl Lower 3.5 s 3.5 s
Apron Raise 4 s 4 s
Bail Raise 1.5 s 1.5 s
Ejector Retract 8.5 s 8.5 s

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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