637G Wheel Tractor Scraper
At a Glance
Flywheel Power - Tractor/Scraper
373 kW (500 hp) / 211 kW (283 hp)
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Scraper Capacity - Heaped
34 yd³
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Top Speed - Loaded
33 mile/h
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Tractor Engine
Cat C18 ACERTâ„¢
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Overview
Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Caterpillar Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.
Tractor Engine
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Flywheel Power - Tractor/Scraper |
373 kW (500 hp) / 211 kW (283 hp) |
Net Power |
345 kW (462 hp) / 373 kW (500 hp) |
Gross Power - Gears 1-2 |
488HP |
Gross Power - Gears 3-8 |
526HP |
Net Power - Gears 1-2 |
462HP |
Net Power - Gears 3-8 |
500HP |
Bore |
5.7in |
Stroke |
7.2in |
Displacement |
1105in³ |
Scraper Bowl
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Scraper Capacity - Heaped |
34yd³ |
Rated Load |
82200lb |
Capacity - Struck |
24yd³ |
Depth of Cut - Maximum |
17.2in |
Width - Cut - To Router Bits |
138.3in |
Ground Clearance - Maximum |
21.5in |
Cutting Edge Thickness |
1.12in |
Hyd. Penetration Force - 637G |
81000lb |
Depth of Spread - Maximum |
18.9in |
Apron Opening |
79in |
Apron Closure Force |
38250lb |
Transmission
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Top Speed - Loaded |
33mile/h |
1 Forward |
3.4mile/h |
2 Forward |
6.2mile/h |
3 Forward |
7.6mile/h |
4 Forward |
10.3mile/h |
5 Forward |
13.8mile/h |
6 Forward |
18.7mile/h |
7 Forward |
25.2mile/h |
8 Forward |
34.1mile/h |
Reverse |
6.2mile/h |
Engine
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Tractor Engine |
Cat C18 ACERTâ„¢ |
Scraper Engine |
Cat C9 ACERTâ„¢ |
Scraper Engine
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Net Power |
198 kW (266 hp) / 211 kW (283 hp) |
Gross Power - Gear 1 |
286HP |
Gross Power - Gears 2-4 |
303HP |
Net Power - Gear 1 |
266HP |
Net Power - Gears 2-4 |
283HP |
Bore |
4.4in |
Stroke |
5.9in |
Displacement |
538in³ |
Weights - Push-Pull
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Total Shipping |
116100lb |
Tractor Shipping |
68499lb |
Scraper Shipping |
47601lb |
Total Operating - Empty |
118084lb |
Front Axle |
69670lb |
Rear Axle |
48414lb |
Total Operating - Loaded |
200284lb |
Front Axle - Loaded |
98139lb |
Rear Axle - Loaded |
102145lb |
Dimensions
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Width - Overall Machine |
155in |
Width - Tractor |
137in |
Width - Rear Tire Center Lines |
97in |
Width - Inside of Bowl |
134in |
Width - Outside Rear Tires |
143.2in |
Width - Outside Bowl - Shipping Width |
154in |
Height - Overall Shipping |
168.8in |
Height - Top of Cab |
146.3in |
Ground Clearance - Tractor |
26.2in |
Front of Tractor to Front Axle |
132.2in |
Axle to Vertical Hitch Pin |
21.6in |
Height - Scraper Blade Maximum |
21.5in |
Wheel Base |
345.2in |
Length - Overall Machine |
573.4in |
Rear Axle - Rear of Machine |
95.97in |
Bail Length - Maximum (Push-Pull) |
195.3in |
Extended Push Block (Push-Pull) |
108in |
Weights - Standard, Tandem
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Total Shipping |
112760lb |
Tractor Shipping |
66529lb |
Scraper Shipping |
46231lb |
Total Operating - Empty |
114744lb |
Front Axle |
67700lb |
Rear Axle |
47044lb |
Total Operating - Loaded |
196944lb |
Front Axle Weight - Loaded |
96503lb |
Rear Axle - Weight - Loaded |
100441lb |
Service Refill Capacities - Scraper
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Fuel Tank - 637G |
335gal (US) |
Crankcase |
7.9gal (US) |
Transmission |
19gal (US) |
Differential |
3.2gal (US) |
Final Drive - Each |
5gal (US) |
Wheel Coolant - Each |
19.8gal (US) |
Cooling System |
20gal (US) |
Service Refill Capacities - Tractor
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Crankcase |
11.9gal (US) |
Fuel Tank |
335gal (US) |
Wheel Coolant - Each |
19.8gal (US) |
Windshield Washer |
1.5gal (US) |
Cooling System |
29gal (US) |
Differential |
39gal (US) |
Final Drive - Each |
6.1gal (US) |
Hydraulic Reservoir |
50.2gal (US) |
Transmission |
29gal (US) |
Transmission - 637G
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1 Forward |
3.4mile/h |
2 Forward |
6.2mile/h |
3 Forward |
7.6mile/h |
4 Forward |
10.3mile/h |
5 Forward |
13.8mile/h |
6 Forward |
18.7mile/h |
7 Forward |
25.2mile/h |
8 Forward |
34.1mile/h |
Reverse |
6.2mile/h |
Steering
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Width - 180° Turn |
40.02ft |
Width - 180° Turn - Right |
40.1ft |
Steering Angle - Right |
90° |
Steering Angle - Left |
85° |
Hydraulic Output |
100gal/min |
Hydraulics
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Bowl Cylinder Bore |
7.2in |
Bowl Cylinder Stroke |
34.4in |
Apron Cylinder Bore |
8.2in |
Apron Cylinder Stroke |
28.6in |
Ejector Cylinder Bore |
8.2in |
Ejector Cylinder Stroke |
74in |
Steering Circuit |
100gal/min |
Scraper Circuit |
91gal/min |
Cushion Hitch Circuit |
9gal/min |
Secondary Steering Circuit |
100gal/min |
Relief Valve - Steering Circuit |
1987psi |
Relief Valve - Implement Circuit |
2030psi |
Compensator Settings - Cushion Hitch Circuit |
2320psi |
Standard Equipment:
Electrical
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Alarm, backup
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Alternator, 75 amp - tractor engine
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Alternator, 35 amp - scraper engine
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Batteries (4), 12V Maintenance Free, High Output
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Batteries (2), 12V Maintenance Free, High Output
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Electrical System, 24V
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Lighting System - Tractor
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Lighting System - Scraper
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Starting Receptacle - tractor and scraper engines
Operator Environment
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Air Conditioner (includes heater and defroster)
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Cigarette Lighter and Ashtray
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Coat Hook
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Diagnostic Connection Port (12V)
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Dome Courtesy Light
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Gauge Group
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Horn
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Implement Control Joystick
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Rearview Mirrors
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Radio Ready (two radio openings, speakers, and 5-amp converter)
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ROPS Cab with Sound Suppression and Pressurization
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Static Seatbelt
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Scraper Engine Controls
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Seat, Air Suspension, Caterpillar Comfort, cloth
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Steering Wheel - tilt and telescoping
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Storage Compartment
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Throttle Lock
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Transmission Hold
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Windows - sliding side, swing out
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Windshield - laminated glass
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Windshield Wiper/Washer - front and rear
Power Train
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Engine
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Braking System
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Transmission
Other Standard Equipment
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Extended Life Coolant, -36° C (-33° F)
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Fan hub, permanent lube
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Fast Oil Change
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Fenders
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Rims - 35 inch (2)
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Tires, 37.50-R35 radial
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Tractor:
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Scraper:
Optional Equipment: