637K

637K Wheel Tractor – Coal Bowl Scraper

637K Coal Bowl Scraper

DESCRIPTION

637K coal bowls are longer and higher than standard wheel tractor scraper bowls, allowing them to haul 38 m (50 yd) of low density loose coal. The bowls are designed and built to specifically deliver in coming loose coal to the stock pile and reserve stock piled coal to the feeder system.

MAXIMIZE PERFORMANCE

  • Coal Bowls are longer and higher than standard scraper bowls, which allows Wheel Tractor-Scrapers to haul 38 m (50 yd) of low density loose coal. The bowls are designed and built to specifically deliver in coming loose coal to the stock pile and reserve stock piled coal to the feeder system.
  • Sequence Assist (optional) 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.

MAXIMIZE PERFORMANCE
SAVE ON MAINTENANCE TIME

SAVE ON MAINTENANCE TIME

  • The fuel, water and engine oil are relocated at ground level on the right hand side of the machine for easy access.
  • In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.

BUILT-IN SAFETY FEATURES

  • 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 allows the machine to control the slip of the tractor tires only. When Tire Spin Reduction is selected the machine will control wheel spin on the tractor by keeping the slip in the optimal range for loading by adjusting engine rpms with no additional operator input.
  • 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.
  • Differential Lock Engagement Protection allows the machine to prevent the operator from engaging the differential lock when damage could occur.
  • Coal bowl scrapers are effective in compacting coal, which reduces the risk of spontaneous combustion of coal in the stockpile by eliminating the air spaces.

BUILT-IN SAFETY FEATURES
OPERATOR COMFORT AND CONTROL

OPERATOR COMFORT AND CONTROL

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

EFFICIENCY THROUGH TECHNOLOGY

  • Machine Speed Limitis 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 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. In most cases, allowing the engine and transmission to select the correct gear to pull the load will result in a lower engine load factor and lower fuel burn verses top gear selection.
  • Fuel Economy Mode 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, allowing the machine to utilize the more efficient tractor power train vs. the full time torque convertor drive scraper power train.

EFFICIENCY THROUGH TECHNOLOGY
  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

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 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

Specs

Overview

Long Name:
637K Wheel Tractor – Coal Bowl Scraper
Name:
637K
Brand:
Caterpillar
Status:
Current

Engine

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

Operating Specifications

Scraper Capacity - Heaped
50 yd³ / 38 m³
Top Speed - Loaded
34.7 mile/h / 55.8 km/h

Safety Criteria Compliance Standards

Brakes
ISO 3450:2011
Steering System
ISO 5010:2007

General

180° Curb-to-Curb Turning Width
42.59 ft / 12.98 m

Service Refill Capacities

Cooling System - Scraper
16.1 gal (US) / 61 l

Travel Speeds - Runout

Transmission Gear - Eighth
34.7 mile/h / 55.8 km/h

General

Flywheel Power - Tractor
570 HP / 425 kW

Implement Cycle Times

Bail Raise
1.5 s / 1.5 s

Dimensions

Width - Overall Machine
155 in / 3937 mm

Service Refill Capacities

Diesel Exhaust Fluid - Scraper
5.8 gal (US) / 22 l

Travel Speeds - Runout

Transmission Gear - First
3.4 mile/h / 5.5 km/h

General

Tires - Tractor
37.25R35**E3

Service Refill Capacities

Transmission System - Tractor
29 gal (US) / 110 l

Dimensions

Width - Tractor
137.8 in / 3499 mm

Service Refill Capacities

Crankcase - Tractor
13.7 gal (US) / 52 l

Dimensions

Ground Clearance - Tractor
26.1 in / 664 mm

Implement Cycle Times

Bowl Lower
3.5 s / 3.5 s

Service Refill Capacities

Diesel Exhaust Fluid - Tractor
8 gal (US) / 30.5 l

Implement Cycle Times

Apron Lower
3.8 s / 3.8 s

General

Overall Width
12.93 ft / 3.94 m
Rated Engine RPM - Scraper
2150 r/min / 2150 r/min

Dimensions

Axle to Vertical Hitch Pin
20 in / 509 mm

Safety Criteria Compliance Standards

Seat Belt
SAE J386:FEB2006
Falling Object Protective Structure (FOPS)
ISO 3449:2005 Level II

Dimensions

Height - Top of Cab
147 in / 3733 mm

Service Refill Capacities

Fuel Tank
370 gal (US) / 1400 l

General

Rated Engine RPM - Tractor
1900 r/min / 1900 r/min
Operating Weight - Empty
117782 lb / 52425 kg

Travel Speeds - Runout

Transmission Gear - Fourth
10.5 mile/h / 16.9 km/h

General

Scraper Capacity - Heaped
50 yd³ / 38 m³
Width - Cut
11.5 ft / 3.51 m

Travel Speeds - Runout

Transmission Gear - Reverse
6.2 mile/h / 9.9 km/h

General

Top Speed - Loaded
34.7 mile/h / 55.8 km/h
Overall Length
609.5 in / 15480 mm

Travel Speeds - Runout

Transmission Gear - Third
7.7 mile/h / 12.4 km/h

Cab

ROPS/FOPS
Meet ISO standards

Service Refill Capacities

Transmission System - Scraper
12.9 gal (US) / 49 l

General

Fuel Tank Refill Capacity - Scraper
370 gal (US) / 1400 l
Scraper Capacity - Struck
41 yd³ / 31 m³

Implement Cycle Times

Ejector Retract
8.5 s / 8.5 s

General

Overall Shipping Height
13.62 ft / 4.15 m

Service Refill Capacities

Hydraulic System
37.5 gal (US) / 142 l

Travel Speeds - Runout

Transmission Gear - Seventh
25.7 mile/h / 41.95 km/h
Transmission Gear - Fifth
14.1 mile/h / 22.7 km/h

Dimensions

Width - Outside Rear Tires
143.2 in / 3636 mm
Height - Scraper Blade Maximum
21.2 in / 538 mm
Rear Axle - Rear of Machine
95.4 in / 2424 mm

General

Maximum Depth of Cut
17.7 in / 450 mm
Emissions
Cat C9.3 and Cat C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards.

Implement Cycle Times

Bail Lower
2.1 s / 2.1 s

Travel Speeds - Runout

Transmission Gear - Sixth
19 mile/h / 30.6 km/h

General

Maximum Depth of Spread
21.1 in / 535 mm
Flywheel Power - Scraper
290 HP / 216 kW

Implement Cycle Times

Apron Raise
4 s / 4 s

Service Refill Capacities

Cooling System - Tractor
19.8 gal (US) / 75 l

General

Rated Load
34 472 kg (76,000 lb)/34.20 tonnes (38 tons)

Dimensions

Width - Rear Tire Centers
96.9 in / 2462 mm
Front of Tractor to Front Axle
142.2 in / 3612 mm

General

Engine Model - Scraper
Cat C9.3
Engine Model - Tractor
Cat C18
Tires - Scraper
37.25R35**E3

Travel Speeds - Runout

Transmission Gear - Second
6.2 mile/h / 10 km/h

Safety Criteria Compliance Standards

Reverse Alarm
ISO 9533:2010

Service Refill Capacities

Crankcase - Scraper
6.5 gal (US) / 24.5 l

Dimensions

Width - Inside of Bowl
134 in / 3404 mm

Implement Cycle Times

Ejector Extend
8.5 s / 8.5 s
Bowl Raise
3.5 s / 3.5 s

Cab

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

Dimensions

Length - Overall Machine - Standard
609.5 in / 15480 mm

Safety Criteria Compliance Standards

Rollover Protection Structure (ROPS)
ISO 3471:2008 for up to 21 282 kg (46,919 lb)

Dimensions

Height - Overall Shipping
163 in / 4140 mm
Wheel Base
377 in / 9576 mm