637G Wheel Tractor Scraper

637G 2005

637G Wheel Tractor Scraper

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.

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Product Specs

Weights - Standard, Tandem

Total Shipping
112760lb
Total Operating - Loaded
196944lb
Total Operating - Empty
114744lb
Scraper Shipping
46231lb
Rear Axle - Weight - Loaded
100441lb
Rear Axle
47044lb
Front Axle
67700lb
Front Axle Weight - Loaded
96503lb
Tractor Shipping
66529lb

Dimensions

Extended Push Block (Push-Pull)
108in
Rear Axle - Rear of Machine
95.97in
Bail Length - Maximum (Push-Pull)
195.3in
Length - Overall Machine
573.4in
Wheel Base
345.2in
Height - Scraper Blade Maximum
21.5in
Axle to Vertical Hitch Pin
21.6in
Ground Clearance - Tractor
26.2in
Height - Top of Cab
146.3in
Height - Overall Shipping
168.8in
Width - Outside Bowl - Shipping Width
154in
Width - Inside of Bowl
134in
Width - Outside Rear Tires
143.2in
Width - Rear Tire Center Lines
97in
Width - Tractor
137in
Front of Tractor to Front Axle
132.2in
Width - Overall Machine
155in

Service Refill Capacities - Scraper

Differential
3.2gal (US)
Final Drive - Each
5gal (US)
Fuel Tank - 637G
335gal (US)
Transmission
19gal (US)
Wheel Coolant - Each
19.8gal (US)
Crankcase
7.9gal (US)
Cooling System
20gal (US)

Service Refill Capacities - Tractor

Transmission
29gal (US)
Wheel Coolant - Each
19.8gal (US)
Windshield Washer
1.5gal (US)
Hydraulic Reservoir
50.2gal (US)
Cooling System
29gal (US)
Crankcase
11.9gal (US)
Differential
39gal (US)
Final Drive - Each
6.1gal (US)
Fuel Tank - 637G
335gal (US)

Steering

Width - 180° Turn - Right
40.1ft
Steering Angle - Right
90°
Steering Angle - Left
85°
Hydraulic Output
100gal/min
Width - 180° Turn
40.02ft

Hydraulics

Compensator Settings - Cushion Hitch Circuit
2320psi
Cushion Hitch Circuit
9gal/min
Secondary Steering Circuit
100gal/min
Relief Valve - Steering Circuit
1987psi
Relief Valve - Implement Circuit
2030psi
Scraper Circuit
91gal/min
Steering Circuit
100gal/min
Bowl Cylinder Stroke
34.4in
Ejector Cylinder Stroke
74in
Ejector Cylinder Bore
8.2in
Apron Cylinder Stroke
28.6in
Apron Cylinder Bore
8.2in
Bowl Cylinder Bore
7.2in

Transmission

8 Forward
34.1mile/h
Reverse
6.2mile/h
6 Forward
18.7mile/h
7 Forward
25.2mile/h
5 Forward
13.8mile/h
4 Forward
10.3mile/h
3 Forward
7.6mile/h
2 Forward
6.2mile/h
1 Forward
3.4mile/h
Top Speed - Loaded
33mile/h

Scraper Bowl

Apron Opening
79in
Scraper Capacity - Heaped
34yd³
Apron Closure Force
38250lb
Hyd. Penetration Force - 637G
81000lb
Depth of Spread - Maximum
18.9in
Cutting Edge Thickness
1.12in
Width - Cut - To Router Bits
138.3in
Ground Clearance - Maximum
21.5in
Capacity - Struck
24yd³
Rated Load
82200lb
Depth of Cut - Maximum
17.2in

Engine

Tractor Engine
Cat C18 ACERT™
Scraper Engine
Cat C9 ACERT™

Scraper Engine

Net Power
198 kW (266 hp) / 211 kW (283 hp)
Stroke
5.9in
Bore
4.4in
Net Power - Gears 2-4
283HP
Net Power - Gear 1
266HP
Gross Power - Gears 2-4
303HP
Gross Power - Gear 1
286HP
Displacement
538in³

Tractor Engine

Displacement
1105in³
Net Power - Gears 3-8
500HP
Bore
5.7in
Stroke
7.2in
Net Power - Gears 1-2
462HP
Gross Power - Gears 1-2
488HP
Gross Power - Gears 3-8
526HP
Flywheel Power - Tractor/Scraper
373 kW (500 hp) / 211 kW (283 hp)
Net Power
345 kW (462 hp) / 373 kW (500 hp)

Weights - Push-Pull

Tractor Shipping
68499lb
Scraper Shipping
47601lb
Rear Axle - Loaded
102145lb
Front Axle - Loaded
98139lb
Total Operating - Loaded
200284lb
Rear Axle
48414lb
Front Axle
69670lb
Total Operating - Empty
118084lb
Total Shipping
116100lb

Transmission - 637G

2 Forward
6.2mile/h
5 Forward
13.8mile/h
Reverse
6.2mile/h
8 Forward
34.1mile/h
6 Forward
18.7mile/h
7 Forward
25.2mile/h
4 Forward
10.3mile/h
3 Forward
7.6mile/h
1 Forward
3.4mile/h

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