637 Wheel Tractor-Scraper

Open Bowl Scrapers
637_0
637 Open Bowl Scraper
637_0
637 Open Bowl Scraper
High performance

Cat’s 637 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.

Execute Efficiency
Be More Productive
• Up to 12% improvement in productivity.
• Advanced productivity electronic control system (APECS) allows
the engine and transmission to communicate on a high level. This
communication allows the machine to better utilize the power and torque the engine is producing. The net result is moving more material.
• Use ground speed control to set the desired top speed and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn.
• The machine speed limit feature replaces top gear selection,
allowing the machine to find the correct gear that works best for
the engine and transmission. Pulling the load in the correct gear, in
most cases, results in lower engine load factor and lower fuel burn.
• Auto-stall assists in quickly bringing the transmission to an
operating temperature at startup when the machine is working in a
cold climate region.
• Cat Payload Estimator for scrapers is an earthmoving solution for optimal payload and jobsite efficiency. Payload Estimator achieves on-the-go weighing by using bowl lift cylinder pressure during the loaded haul segment. Payload Estimator is optimized to be used with sequence assist, which provides increased productivity with less operator effort. Payload Estimator is an automatic feature when ordered with sequence assist.
Work in Comfort
Be More Productive
Work in Comfort
• Reduce up to 14 individual operator commands per cycle with sequence assist (optional attachment).
• Steer with less effort using the newly designed high-pressure
steering system.
• Enjoy interior improvements and a more ergonomic work environment with a 21% larger cab than the G Series cab.
• Intuitive, ergonomic controls keep operators focused on their work.
• Maintain desired cab temperature with automatic temperature control.
Designed for Safety
Work in Comfort
Designed for Safety
• Get in and out of the cab easier with the new powered access ladder system (optional attachment).
• Enhance an operator’s awareness of site surroundings with the optional work area vision system (WAVS).
• Seat belt indicator provides visual and audible alerts when the seat
belt is not in use.
• Advanced cushion hitch allows the cushion hitch to prevent end stroke by having the ability to predict end stroke events and manage the rate of dampening, resulting in reduced hitch maintenance and improved operator ride in rough conditions.
• Easy ground-level access to fuel, water, and engine oil.
Easy to Operate
Designed for Safety
Easy to Operate
• The spacious cab features easy, intuitive controls and excellent
visibility. The cab provides a comfortable working environment for
all-day operation.
• Cat advanced ride management (ARM) seat suspension reduces
end stroke movement of the load cylinder for a smoother ride.
• Engine overspeed protection will automatically engage with no
operator input when the machine is in eighth gear. The machine will assist in slowing the machine speed by canceling the throttle command and engaging the engine compression brake.
Integrated Cat Technologies
Easy to Operate
Integrated Cat Technologies
• Monitor, manage, and enhance job site operations.
• Hit target grade faster and more accurately with Cat Grade
technologies. Finish jobs in fewer passes and with less operator
effort, saving you time and helping to increase profit.
• Product Link™ collects machine data that can be viewed online
through web and mobile applications (optional attachment).• Access information anytime, anywhere with VisionLink®– useit to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve the safety and security of your job site.
• Shorten the learning curve for inexperienced operators with load
assist (optional attachment).
Execute Efficiency
Integrated Cat Technologies
Execute Efficiency
• The new tractor hydraulic on-demand fan helps assist in lower fuel
consumption.
• Using draft-arm overflow guards diverts material away from the
bowl, preventing material from getting caught between the draft
arms and the bowl sides.
• Cat Grade Control (optional attachment) intelligently ensures the
machine does not cut below grade in a cut area or overfill in the
fill area.
Be More Productive
Be More Productive
Work in Comfort
Designed for Safety
Easy to Operate
Integrated Cat Technologies
Execute Efficiency
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General
Tires - Tractor 37.25R35**E3
Tires - Scraper 37.25R35**E3
Rated Load 37 200 kg (82,200 lb); 37.2 tonnes (41.1 tons)
Engine
Engine Model - Scraper Cat C9.3
Engine Model - Tractor Cat C18
Emissions Cat C9.3 and C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Cab
Exterior Sound Level The exterior sound power level for the standard machine (ISO 6393) is 116 dB(A).
ROPS/FOPS ROPS/FOPS meet “ISO Standards.”
Safety Criteria Compliance Standards
Reverse Alarm ISO 9533:2010
Brakes ISO 3450:2011
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Seat Belt SAE J386:FEB2006
Steering System ISO 5010:2007
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General
Scraper Capacity - Struck 18.3 m³
Width - Cut 3.51 m
180° Curb-to-Curb Turning Width 12.23 m
Fuel Tank Refill Capacity - Scraper 1400 l
Scraper Capacity - Heaped 26 m³
Overall Width 3.94 m
Top Speed - Loaded 55.8 km/h
Overall Shipping Height 4.15 m
Maximum Depth of Cut 450 mm
Maximum Depth of Spread 535 mm
Engine
Rated Engine RPM - Tractor 1900 r/min
Flywheel Power - Scraper 216 kW
Rated Engine RPM - Scraper 2150 r/min
Flywheel Power - Tractor 425 kW
Tractor Engine
Flywheel Power - Tractor/Scraper 425 kW
Scraper Bowl
Scraper Capacity - Heaped 26 m³
Transmission
Top Speed - Loaded 55.8 km/h
Service Refill Capacities
Hydraulic System 142 l
Crankcase - Tractor 52 l
Diesel Exhaust Fluid - Tractor 30.5 l
Diesel Exhaust Fluid - Scraper 22 l
Transmission System - Scraper 49 l
Fuel Tank 1400 l
Cooling System - Scraper 61 l
Crankcase - Scraper 24.5 l
Cooling System - Tractor 75 l
Transmission System - Tractor 110 l
Dimensions
Front of Tractor to Front Axle 3612 mm
Axle to Vertical Hitch Pin 509 mm
Wheel Base 8808 mm
Rear Axle - Rear of Machine 2292 mm
Length - Maximum (Push-Pull) 16640 mm
Width - Overall Machine 3937 mm
Width - Rear Tire Centers 2462 mm
Extended Push Block (Push-Pull) 2744 mm
Width - Outside Rear Tires 3636 mm
Width - Inside of Bowl 3404 mm
Height - Scraper Blade Maximum 510 mm
Ground Clearance - Tractor 664 mm
Width - Tractor 3499 mm
Length - Overall Machine - Standard 15164 mm
Height - Overall Shipping 4145 mm
Height - Top of Cab 3733 mm
Non Push-Pull
Operating Weight - Empty 52140 kg
Overall Length 15.04 m
Push-Pull
Overall Length - With Bail Down 16.64 m
Operating Weight - Empty 54005 kg
Travel Speeds - Runout
Transmission Gear - Reverse 9.9 km/h
Transmission Gear - Second 10 km/h
Transmission Gear - First 5.5 km/h
Transmission Gear - Seventh 41.95 km/h
Transmission Gear - Sixth 30.6 km/h
Transmission Gear - Fourth 16.9 km/h
Transmission Gear - Third 12.4 km/h
Transmission Gear - Fifth 22.7 km/h
Transmission Gear - Eighth 55.8 km/h
Implement Cycle Times
Bail Lower 2.1 s
Apron Lower 3.8 s
Apron Raise 4 s
Bowl Lower 3.5 s
Bowl Raise 3.5 s
Ejector Retract 8.5 s
Bail Raise 1.5 s
Ejector Extend 8.5 s
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NOTE
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
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)
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NOTE
STEERING ARRANGEMENTS
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)