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Wheel Tractor-Scrapers



657G Wheel Tractor-Scraper



Overview



Specifications



Benefits & Features



Standard / Optional Equip.

657G Wheel Tractor-Scraper Specifications Print Version




Engine

Units: US | Metric

Tractor Engine

Cat® C18 ACERT™

Scraper Engine

Cat C15 ACERT


Tractor Engine

Flywheel Power: Tractor/Scraper

447 kW (600 hp) / 337 kW (451 hp)

Net Power

421/447 kW 564/600 hp

Gross Power - Gears 1-2

596 hp

Gross Power - Gears 3-8

632 hp

Net Power - Gears 1-2

564 hp

Net Power - Gears 3-8

600 hp

Bore

5.7 in

Stroke

7.2 in

Displacement

1105 in3


Scraper Engine

Net Power

306/337 kW 410/451 hp

Gross Power - Gears 1-2

437 hp

Gross Power - Gears 3-8

478 hp

Net Power - Gears 1-2

410 hp

Net Power - Gears 3-8

451 hp

Bore

5.5 in

Stroke

6.5 in

Displacement

928 in3


Scraper Bowl

Scraper Capacity: Heaped

44 yd3

Rated Load

104000 lb

Capacity Struck

32 yd3

Depth of Cut - max.

17 in

Width of Cut, to Router Bits

12.7 in

Ground Clearance - max.

23 in

Cutting Edge - thickness

1.8 in.

Hyd. Penetration Force - 657G

121000 lb

Depth of Spread - max.

26 in

Apron Opening

92 in

Apron Closure Force

39200 lb


Transmission

Top Speed (Loaded)

33 mph

1 Forward

3.5 mph

2 Forward

6.3 mph

3 Forward

7.8 mph

4 Forward

10.6 mph

5 Forward

14.1 mph

6 Forward

19 mph

7 Forward

25.6 mph

8 Forward

34.6 mph

Reverse

6.1 mph


Hydraulics

Bowl Cylinder Bore

9.25 in

Bowl Cylinder Stroke

37.4 in

Apron Cylinder Bore

9.25 in

Apron Cylinder Stroke

29.92 in

Ejector Cylinder Bore

10.24 in

Ejector Cylinder Stroke

76.61 in

Steering Circuit

99.9 gal/min

Scraper Circuit

153 gal/min

Cushion Hitch Circuit

12.7 gal/min

Secondary Steering Circuit

64.2 gal/min

Relief Valve - Steering Circuit

1959 psi

Relief Valve - Implement Circuit

1999 psi

Compensator Setting - Cushion Hitch Circuit

3002 psi


Steering

Width - 180° Turn, right

44.62 ft

Width - 180° Turn, left

47.57 ft

Steering Angle – Right

90°

Steering Angle – Left

85°


Service Refill Capacities – Tractor

Crankcase

17 gal

Transmission

36 gal

Differential

36 gal

Final Drive (per side)

6 gal

Cooling System

33 gal

Hydraulic Reservoir

80 gal

Wheel Coolant (each)

34.3 gal

Windshield Washer

0.5 gal


Service Refill Capacities – Scraper

Fuel Tank - 657G

421.9 gal

Crankcase

10 gal

Transmission

32 gal

Differential

44 gal

Final Drive (per side)

7.9 gal

Wheel Coolant (each)

34.3 gal

Cooling System

24 gal


Dimensions

Width - overall machine

171 in

Width - tractor

141.77 in

Width - rear tire center lines

110.75 in

Width - inside of bowl

145 in

Width - outside bowl (shipping width)

154 in

Height - overall shipping

185.4 in

Height - top of cab

146.14 in

Ground Clearance, Tractor

25.39 in

Front of Tractor to Front Axle

148.4 in

Axle to Vertical Hitch Pin

23.94 in

Height - scraper blade max.

26.77 in

Wheelbase

391.97 in

Length - overall machine

636.38 in

Rear Axle to Rear of Machine

95.98 in

Bail Length - max. (push-pull)

72.28 in


Weights - Standard, tandem

Total Shipping

147959 lb

Tractor Shipping

87717 lb

Scraper Shipping

60242 lb

Total Operating - empty

150761 lb

Front Axle

87924 lb

Rear Axle

62837 lb

Total Operating - loaded

254761 lb

Front Axle Weight - loaded

128246 lb

Rear Axle Weight - loaded

126515 lb


Weights - Push-Pull

Total Shipping

160505 lb

Tractor Shipping

93635 lb

Scraper Shipping

64068 lb

Total Operating - empty

160505 lb

Front Axle

93842 lb

Rear Axle

66663 lb

Total Operating - loaded

264505 lb

Front Axle - loaded

134165 lb

Rear Axle (Loaded)

130340 lb