637K Wheel Tractor – Coal Bowl Scraper

US
Metric

Overview

Engine

Flywheel Power - Tractor/Scraper
425 kW (570 hp)/216 kW (290 hp)

Operating Specifications

Scraper Capacity - Heaped
50.00 yd³
38.00 m³
Top Speed (Loaded)
34.70 mph
55.80 km/h

General Data

Fuel Tank Refill Capacity: Scraper
370.00 gal
1400.00 L
Overall Width
12.93 ft
3.94 m
Overall Shipping Height
13.62 ft
4.15 m
Scraper Capacity: Struck
41.00 yd3
31.00 m3
Scraper Capacity: Heaped
50.00 yd3
38.00 m3
Rated Load
37 285 kg (82,200 lb)/37.285 tonnes (41.1 tons)
Width of Cut
11.50 ft
3.51 m
Maximum Depth of Cut
17.70 in
450.00 mm
Maximum Depth of Spread
21.10 in
535.00 mm
Top Speed (Loaded)
34.70 mph
55.80 km/h
180° Curb-to-Curb Turning Width
42.59 ft
12.98 m
Tires: Tractor
37.25R35**E3
Tires: Scraper
37.25R35**E3
Operating Weight (Empty)
117782.00 lb
52425.00 kg
Overall Length
609.50 in
15480.00 mm
Engine Model: Tractor
Cat C18 ACERT™
Engine Model: Scraper
Cat C9.3 ACERT
Rated Engine RPM: Tractor
1900.00 rpm
1900.00 rpm
Rated Engine RPM: Scraper
2150.00 rpm
2150.00 rpm
Flywheel Power: Tractor
570.00 hp
425.00 kW
Flywheel Power: Scraper
290.00 hp
216.00 kW
Emissions
Cat C9.3 ACERT and Cat C18 ACERT engines meet U.S. EPA Tier 2/EU Stage II equivalent emission standards.

Cab

ROPS/FOPS
Meet ISO standards
Exterior Sound Power Level
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).

Safety Criteria Compliance Standards

Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Brakes
ISO 3450:2011
Steering System
ISO 5010:2007
Seat Belt
SAE J386:FEB2006
Reverse Alarm
ISO 9533:2010

Travel Speeds (Runout)

Transmission Gear: First
3.40 mph
5.50 km/h
Transmission Gear: Second
6.20 mph
10.00 km/h
Transmission Gear: Third
7.70 mph
12.40 km/h
Transmission Gear: Fourth
10.50 mph
16.90 km/h
Transmission Gear: Fifth
14.10 mph
22.70 km/h
Transmission Gear: Sixth
19.00 mph
30.60 km/h
Transmission Gear: Seventh
25.70 mph
41.95 km/h
Transmission Gear: Eighth
34.70 mph
55.80 km/h
Transmission Gear: Reverse
6.20 mph
9.90 km/h

Implement Cycle Times

Bowl Raise
3.50 seconds
3.50 seconds
Bowl Lower
3.50 seconds
3.50 seconds
Apron Raise
4.00 seconds
4.00 seconds
Apron Lower
3.80 seconds
3.80 seconds
Ejector Extend
8.50 seconds
8.50 seconds
Ejector Retract
8.50 seconds
8.50 seconds
Bail Raise
1.50 seconds
1.50 seconds
Bail Lower
2.10 seconds
2.10 seconds

Service Refill Capacities

Crankcase: Tractor
13.70 gal
52.00 L
Crankcase: Scraper
6.50 gal
24.50 L
Transmission System: Tractor
29.00 gal
110.00 L
Transmission System: Scraper
12.90 gal
49.00 L
Cooling System: Tractor
19.80 gal
75.00 L
Cooling System: Scraper
16.10 gal
61.00 L
Fuel Tank
370.00 gal
1400.00 L
Hydraulic System
37.50 gal
142.00 L

Dimensions

Width – Overall Machine
155.00 in
3937.00 mm
Width – Tractor
137.80 in
3499.00 mm
Width – Rear Tire Centers
96.90 in
2462.00 mm
Width – Inside of Bowl
134.00 in
3404.00 mm
Width – Outside Rear Tires
143.20 in
3636.00 mm
Height – Overall Shipping
163.00 in
4140.00 mm
Height – Top of Cab
147.00 in
3733.00 mm
Ground Clearance – Tractor
26.10 in
664.00 mm
Front of Tractor to Front Axle
142.20 in
3612.00 mm
Axle to Vertical Hitch Pin
20.00 in
509.00 mm
Height –Scraper Blade Maximum
21.20 in
538.00 mm
Wheelbase
377.00 in
9576.00 mm
Length–Overall Machine (Standard)
609.50 in
15480.00 mm
Rear Axle to Rear of Machine
95.40 in
2424.00 mm

Operating Specifications

Top Speed - Loaded
34.70 mile/h
55.80 km/h

General

Fuel Tank Refill Capacity - Scraper
370.00 gal (US)
1400.00 l
Overall Shipping Height
13.62 ft
4.15 m
Overall Width
12.93 ft
3.94 m
Scraper Capacity - Heaped
50.00 yd³
38.00 m³
Scraper Capacity - Struck
41.00 yd³
31.00 m³

Cab

Exterior Sound Power Level
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A).
ROPS/FOPS
Meet ISO standards

Dimensions

Axle to Vertical Hitch Pin
20.00 in
509.00 mm
Front of Tractor to Front Axle
142.20 in
3612.00 mm
Ground Clearance - Tractor
26.10 in
664.00 mm
Height - Overall Shipping
163.00 in
4140.00 mm
Height - Scraper Blade Maximum
21.20 in
538.00 mm
Height - Top of Cab
147.00 in
3733.00 mm
Length - Overall Machine - Standard
609.50 in
15480.00 mm
Rear Axle - Rear of Machine
95.40 in
2424.00 mm
Width - Inside of Bowl
134.00 in
3404.00 mm
Width - Outside Rear Tires
143.20 in
3636.00 mm
Width - Overall Machine
155.00 in
3937.00 mm
Width - Rear Tire Centers
96.90 in
2462.00 mm
Width - Tractor
137.80 in
3499.00 mm

General

180° Curb-to-Curb Turning Width
42.59 ft
12.98 m
Emissions
Cat C9.3 ACERT and Cat C18 ACERT engines meet U.S. EPA Tier 2/EU Stage II equivalent emission standards.
Engine Model - Scraper
Cat C9.3 ACERT
Engine Model - Tractor
Cat C18 ACERT™
Flywheel Power - Scraper
290.00 HP
216.00 kW
Flywheel Power - Tractor
570.00 HP
425.00 kW
Maximum Depth of Cut
17.70 in
450.00 mm
Maximum Depth of Spread
21.10 in
535.00 mm
Operating Weight - Empty
117782.00 lb
52425.00 kg
Overall Length
609.50 in
15480.00 mm
Rated Engine RPM - Scraper
2150.00 r/min
2150.00 r/min
Rated Engine RPM - Tractor
1900.00 r/min
1900.00 r/min
Rated Load
37 285 kg (82,200 lb)/37.285 tonnes (41.1 tons)
Tires - Scraper
37.25R35**E3
Tires - Tractor
37.25R35**E3
Top Speed - Loaded
34.70 mile/h
55.80 km/h
Width - Cut
11.50 ft
3.51 m

Implement Cycle Times

Apron Lower
3.80 s
3.80 s
Apron Raise
4.00 s
4.00 s
Bail Lower
2.10 s
2.10 s
Bail Raise
1.50 s
1.50 s
Bowl Lower
3.50 s
3.50 s
Bowl Raise
3.50 s
3.50 s
Ejector Extend
8.50 s
8.50 s
Ejector Retract
8.50 s
8.50 s

Safety Criteria Compliance Standards

Brakes
ISO 3450:2011
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II
Reverse Alarm
ISO 9533:2010
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

Service Refill Capacities

Cooling System - Scraper
16.10 gal (US)
61.00 l
Cooling System - Tractor
19.80 gal (US)
75.00 l
Crankcase - Scraper
6.50 gal (US)
24.50 l
Crankcase - Tractor
13.70 gal (US)
52.00 l
Fuel Tank
370.00 gal (US)
1400.00 l
Hydraulic System
37.50 gal (US)
142.00 l
Transmission System - Scraper
12.90 gal (US)
49.00 l
Transmission System - Tractor
29.00 gal (US)
110.00 l

Travel Speeds - Runout

Transmission Gear - Eighth
34.70 mile/h
55.80 km/h
Transmission Gear - Fifth
14.10 mile/h
22.70 km/h
Transmission Gear - First
3.40 mile/h
5.50 km/h
Transmission Gear - Fourth
10.50 mile/h
16.90 km/h
Transmission Gear - Reverse
6.20 mile/h
9.90 km/h
Transmission Gear - Second
6.20 mile/h
10.00 km/h
Transmission Gear - Seventh
25.70 mile/h
41.95 km/h
Transmission Gear - Sixth
19.00 mile/h
30.60 km/h
Transmission Gear - Third
7.70 mile/h
12.40 km/h

Dimensions

Wheel Base
377.00 in
9576.00 mm
Features

Tractor Serviceability Improvement

The fuel, water and engine oil are relocated at ground level on the right hand side of the machine for easy access.

Brakes

Have been changed from an air actuated drum shoe brake to a hydraulic actuated tractor wet disc brake and a scraper dry caliper.

Tire Spin Reduction

This feature will allow the machine to control the slip of the tractor tires only.

Engine Over Speed Protection

In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.

Advanced Cushion Hitch

With similar technology as the Cat® Advanced Ride Management seat suspension, this software 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.

High Pressure Steering

K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.

Differential Lock Engagement Protection

This standard feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.

Cab Improved

The K Series cab interior improves operator comfort and visibility. The overall interior is 21% larger than the G Series cab.

Machine Speed Limit

This feature is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close to high idle.

Ground Speed Control

Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission.

Fuel Economy Mode

This is a two part feature when selected. The first part of the feature lowers the transmission shift points allowing shifting to take place at lower rpms to aid in fuel savings. The second part of the Fuel Economy Mode allows the machine when operated at engine rpms less than full throttle to automatically vary the power distribution between the tractor and the scraper.

Sequence Assist (Optional Attachment)

This option uses cylinder position sensors to automate bowl, apron and further implement controls throughout the four core work cycles: Dig, Haul, Unload and Return. When utilized this can reduce up to 14 individual operator commands per cycle. Sequence Assist simplifies control over the implements, reduces joystick usage, automatically controls cushion hitch, transmission hold and ejector.

Payload Estimator (Optional Attachment)

The Payload Estimator will calculate the payload of the machine in tonnes or tons by measuring the bowl lift cylinder pressures at the beginning of the loaded haul segment. This feature works best when using Sequence Assist. Using Payload Estimator during testing has achieved better than 95% accuracy when compared to actual scale weights. The Payload Estimator feature comes automatically when a machine is ordered with Sequence Assist.

Load Assist (Optional Attachment)

Is designed to help shorten the learning curve of inexperienced operators to ensure consistency and faster loading of material while reducing effort of the operator. Based on the speed of the machine, Load Assist automatically adjusts the cutting edge height to manage wheel slip and to ensure consistent and efficient loading in bulk earthmoving applications.

Cat Grade Control (Optional Attachment)

Intelligently ensures the machine does not cut below grade in the cut area or over fill in the fill area – avoiding rework and moving unnecessary material.

Sales Features

Main Features and Benefits

Standard Equipment
  • POWER TRAIN – TRACTOR
    • Cat C18 ACERT 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 ACERT 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 CAA, 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
      • Fuel level
      • Park brake
      • Implement lockout
      • Brake system
      • 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
  • 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
    • Coal Bowl
      • 31 m3 (41 yd3), struck
      • 38 m3 (50 yd3), heaped
    • Vandalism locks
    • Scraper fenders
    • 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
    • Advanced Tire Spin Reduction
  • OTHER ATTACHMENTS
    • Camera arrangement – WAVS
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Wiring group
  • SERVICE INSTRUCTIONS
    • Film arrangement – International (ISO)