336 Excavator

  • Specs Summary
  • Flywheel Power - 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)

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.
  • Rated Load ( )
  • 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 ( )
  • Maximum Depth of Spread 21.1 in (535 mm)
  • Scraper Capacity - Struck 24 yd³ (18.3 m³)
  • Tires - Tractor ( )
  • 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 ( )
  • Emissions ( )
  • Flywheel Power - Tractor 570 HP (425 kW)
  • Engine Model - Tractor ( )
  • Scraper Capacity - Heaped 34 yd³ (26 m³)
  • Top Speed - Loaded 34.7 mile/h (55.8 km/h)
  • 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)
  • 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)
  • Length - Overall Machine - Standard 597 in (15164 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)
  • Flywheel Power - Tractor/Scraper 570 HP (425 kW)
  • Overall Length 49.34 ft (15.04 m)
  • Operating Weight - Empty 114950 lb (52140 kg)
  • Overall Length - With Bail Down 54.59 ft (16.64 m)
  • Operating Weight - Empty 119060 lb (54005 kg)
  • ROPS/FOPS ( )
  • Exterior Sound Level ( )
  • Seat Belt ( )
  • Reverse Alarm ( )
  • Rollover Protection Structure (ROPS) ( )
  • Brakes ( )
  • Falling Object Protective Structure (FOPS) ( )
  • Steering System ( )
  • 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)
  • 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)
  • Width - Tractor 137.8 in (3499 mm)
  • Height - Scraper Blade Maximum 20 in (510 mm)
  • Height - Overall Shipping 163.2 in (4145 mm)
  • Ground Clearance - Tractor 26.1 in (664 mm)
  • Width - Outside Rear Tires 143.2 in (3636 mm)
  • Height - Top of Cab 147 in (3733 mm)
  • Width - Overall Machine 155 in (3937 mm)
  • Width - Inside of Bowl 134 in (3404 mm)

Standard Equipment

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:<ul><li>Primary and secondary, wet disc, hydraulic actuated</li><li>Parking, hydraulic-released, spring-applied</li></ul>
  • Throttle lock
  • Transmission:<ul><li>8-speed planetary power shift</li><li>ECPC control</li><li>APECS software</li><li>Programmable top gear selection</li><li>Transmission hold</li><li>Differential lock</li><li>Guard, power train</li><li>Standard tire spin reduction</li><li>Ground speed control</li><li>Machine speed limit</li><li>Differential lock protection</li></ul>

POWER TRAIN – SCRAPER

  • Cat C9.3 engine:<ul><li>High pressure common rail fuel</li><li>Constant lift engine brake</li></ul>
  • 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:<ul><li>Primary and secondary, dry caliper, hydraulic actuated</li></ul>
  • Transmission:<ul><li>4-speed (torque converter drive)</li><li>Planetary power shift</li></ul>

ELECTRICAL – TRACTOR

  • Alternator, 150 Amp
  • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
  • Electrical system, 24V
  • Lighting system:<ul><li>Headlights, LED</li><li>Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)</li></ul>
  • 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:<ul><li>Brake lights, LED</li><li>Turn signals with hazard function, LED</li></ul>

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:<ul><li>Throttle lock</li><li>Wipers/washers</li><li>Hazard lights</li><li>Retarding level select</li><li>Work lights on, off</li><li>Information mode on Messenger Display</li></ul>
  • 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:<ul><li>Coolant temperature</li><li>Engine oil temperature</li><li>Hydraulic oil temperature</li><li>Diesel Particulate Filter (DPF) temperature</li><li>Fuel level</li><li>Park brake</li><li>Implement lockout</li><li>Brake system</li><li>Regeneration required</li><li>Throttle lock</li><li>System voltage</li><li>Secondary steering</li><li>Bail down</li><li>Ejector auto</li><li>Differential lock</li><li>Apron float</li><li>Transmission hold</li><li>Cushion hitch</li><li>High beam lights</li><li>Action lamp</li><li>Engine speed, rpm</li><li>Gear selection</li><li>DEF fill levels</li></ul>

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:<ul><li>18.3 m3 (24 yd3), struck</li><li>26 m3 (34 yd3), heaped</li></ul>
  • Vandalism locks
  • Scraper fenders
  • Overflow guard
  • Fast oil change
  • Rims (2)
  • Hydraulic position sensing cylinders (bowl lift and apron)

Optional Equipment

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)