- Specs Summary
- Flywheel Power - Tractor/Scraper
- Tractor Engine
- Flywheel Power - Tractor/Scraper
570 HP (425 kW)
- Scraper Engine
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.
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Rated Load
( )
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Fuel Tank Refill Capacity - Scraper
370 gal (US) (1400 l)
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180° Curb-to-Curb Turning Width
40.12 ft (12.23 m)
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Overall Shipping Height
13.62 ft (4.15 m)
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Overall Width
12.93 ft (3.94 m)
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Top Speed - Loaded
34.7 mile/h (55.8 km/h)
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Scraper Capacity - Heaped
34 yd³ (26 m³)
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Width - Cut
11.5 ft (3.51 m)
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Maximum Depth of Cut
17.7 in (450 mm)
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Tires - Scraper
( )
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Maximum Depth of Spread
21.1 in (535 mm)
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Scraper Capacity - Struck
24 yd³ (18.3 m³)
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Tires - Tractor
( )
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Rated Engine RPM - Tractor
1900 r/min (1900 r/min)
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Rated Engine RPM - Scraper
2150 r/min (2150 r/min)
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Flywheel Power - Scraper
290 HP (216 kW)
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Engine Model - Scraper
( )
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Emissions
( )
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Flywheel Power - Tractor
570 HP (425 kW)
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Engine Model - Tractor
( )
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Scraper Capacity - Heaped
34 yd³ (26 m³)
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Top Speed - Loaded
34.7 mile/h (55.8 km/h)
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Crankcase - Tractor
13.7 gal (US) (52 l)
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Crankcase - Scraper
6.5 gal (US) (24.5 l)
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Transmission System - Tractor
29 gal (US) (110 l)
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Hydraulic System
37.5 gal (US) (142 l)
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Diesel Exhaust Fluid - Scraper
5.8 gal (US) (22 l)
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Diesel Exhaust Fluid - Tractor
8 gal (US) (30.5 l)
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Fuel Tank
370 gal (US) (1400 l)
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Transmission System - Scraper
12.9 gal (US) (49 l)
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Cooling System - Scraper
16.1 gal (US) (61 l)
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Cooling System - Tractor
19.8 gal (US) (75 l)
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Front of Tractor to Front Axle
142.2 ft (3612 m)
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Axle to Vertical Hitch Pin
20 in (509 mm)
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Wheel Base
346.8 ft (8808 m)
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Rear Axle - Rear of Machine
90.2 ft (2292 m)
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Length - Overall Machine - Standard
597 in (15164 mm)
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Length - Maximum (Push-Pull)
655.1 in (16640 mm)
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Extended Push Block (Push-Pull)
108 in (2744 mm)
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Width - Rear Tire Centers
96.9 in (2462 mm)
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Flywheel Power - Tractor/Scraper
570 HP (425 kW)
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Overall Length
49.34 ft (15.04 m)
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Operating Weight - Empty
114950 lb (52140 kg)
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Overall Length - With Bail Down
54.59 ft (16.64 m)
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Operating Weight - Empty
119060 lb (54005 kg)
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ROPS/FOPS
( )
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Exterior Sound Level
( )
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Seat Belt
( )
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Reverse Alarm
( )
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Rollover Protection Structure (ROPS)
( )
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Brakes
( )
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Falling Object Protective Structure (FOPS)
( )
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Steering System
( )
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Transmission Gear - Third
7.7 mile/h (12.4 km/h)
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Transmission Gear - Reverse
6.2 mile/h (9.9 km/h)
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Transmission Gear - First
3.4 mile/h (5.5 km/h)
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Transmission Gear - Seventh
25.7 mile/h (41.95 km/h)
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Transmission Gear - Fifth
14.1 mile/h (22.7 km/h)
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Transmission Gear - Eighth
34.7 mile/h (55.8 km/h)
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Transmission Gear - Fourth
10.5 mile/h (16.9 km/h)
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Transmission Gear - Second
6.2 mile/h (10 km/h)
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Transmission Gear - Sixth
19 mile/h (30.6 km/h)
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Bail Lower
2.1 s (2.1 s)
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Ejector Extend
8.5 s (8.5 s)
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Apron Lower
3.8 s (3.8 s)
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Bowl Raise
3.5 s (3.5 s)
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Bowl Lower
3.5 s (3.5 s)
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Apron Raise
4 s (4 s)
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Bail Raise
1.5 s (1.5 s)
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Ejector Retract
8.5 s (8.5 s)
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Height - Overall Shipping
163.2 ft (4145 m)
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Width - Overall Machine
155 ft (3937 m)
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Width - Tractor
137.8 ft (3499 m)
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Height - Top of Cab
147 ft (3733 m)
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Ground Clearance - Tractor
26.1 in (664 mm)
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Height - Scraper Blade Maximum
20 in (510 mm)
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Width - Outside Rear Tires
143.2 in (3636 mm)
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Width - Inside of Bowl
134 ft (3404 m)
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:<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
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)