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Interior View

657 Wheel Tractor-Scraper

Caterpillar offers Wheel Tractor-Scrapers designed exclusively for your coal stockpiling and retrieval needs. The Caterpillar® 657 Coal Bowl Scrapers can construct and maintain your coal stockpiles, as well as haul loads to your inlet supply system to meet the burn requirements of the plant.

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Tractor Engine

Cat C18

Scraper Engine

Cat C15

Flywheel Power – Tractor/Scraper

469kW (629 hp) / 353 kW (473 hp)

Net Power

469 kW/637 hp

Gross Power (SAE J1995)

637HP

Net Power (ISO 14396)

637HP

Net Power (SAE J1349/ISO 9249)

592HP

Bore

5.7in

Stroke

7.2in

Displacement

1105in³

Scraper Capacity – Heaped

44yd³

Rated Load

104058lb

Capacity – Struck

32yd³

Depth of Cut – Maximum

16.4in

Width – Cut – To Router Bits

12.5ft

Ground Clearance – Maximum

2.3ft

Hyd. Penetration Force – 657G

121000lb

Depth of Spread – Maximum

26in

Apron Opening

92in

Apron Closure Force

39200lb

Top Speed – Loaded

33mile/h

1 Forward

3.5mile/h

2 Forward

6.5mile/h

3 Forward

7.8mile/h

4 Forward

10.6mile/h

5 Forward

14.2mile/h

6 Forward

19.2mile/h

7 Forward

25.7mile/h

8 Forward

34.9mile/h

Reverse

6.7mile/h

Net Power

353 kW/447 hp

Gross Power (SAE J1995)

481HP

Net Power (ISO 14396)

480HP

Net Power (SAE J1349/ISO 9249)

452HP

Bore

5.4in

Stroke

6.75in

Displacement

928in³

Total Shipping

160505lb

Tractor Shipping

93635lb

Scraper Shipping

64068lb

Total Operating – Empty

164244lb

Front Axle

93842lb

Rear Axle

66663lb

Total Operating – Loaded

268302lb

Front Axle – Loaded

134165lb

Rear Axle – Loaded

130340lb

Width – Overall Machine

14.3ft

Width – Tractor

12.3ft

Width – Rear Tire Center Lines

9.21ft

Width – Inside of Bowl

12.07ft

Width – Outside Bowl – Shipping Width

12.98ft

Height – Overall Shipping

15.29ft

Height – Top of Cab

12.86ft

Ground Clearance – Tractor

2.3ft

Front of Tractor to Front Axle

14.93ft

Axle to Vertical Hitch Pin

1.8ft

Height – Scraper Blade Maximum

2.17ft

Wheel Base

32.68ft

Length – Overall Machine

58.96ft

Rear Axle – Rear of Machine

8.07ft

Width – 180° Turn – Right

45.4ft

Width – 180° Turn – Left

47.57ft

Steering Angle – Right

90

Steering Angle – Left

85

Crankcase

13.7gal (US)

Transmission

35.9gal (US)

Differential

36gal (US)

Final Drive – Each

6gal (US)

Cooling System

23.4gal (US)

Hydraulic Reservoir

39.6gal (US)

Windshield Washer

0.5gal (US)

Bowl Cylinder Bore

7.08in

Bowl Cylinder Stroke

37.4in

Apron Cylinder Bore

7.08in

Apron Cylinder Stroke

29.92in

Steering Circuit (@ High Idle)

76.08gal/min

Cushion Hitch Circuit

19.54gal/min

Secondary Steering Circuit

14.52gal/hr

Relief Valve – Steering Circuit

1959psi

Relief Valve – Implement Circuit

1999psi

Compensator Settings – Cushion Hitch Circuit

3002psi

Fuel Tank – 657G

430gal (US)

Crankcase

8.9gal (US)

Transmission

31.9gal (US)

Differential

44gal (US)

Final Drive – Each

7.8gal (US)

Cooling System

16.6gal (US)

Note
- Standard and optional equipment may vary. Consult your Cat dealer for details.
Electrical
- Alarm, backup
- Alternator, 115 amp – tractor engine
- Alternator, 65 amp – scraper engine
- Batteries Tractor (4), 12V Maintenance Free, High Output
- Batteries Scraper (4), 12V Maintenance Free, High Output
- Electrical System, 24V
- Lighting System – Tractor
- Lighting System – Scraper
- Starting Receptacle – tractor and scraper engines
Operator Environment
- Air Conditioner (includes heater and defroster)
- Automotive style fuse panel with fuse puller
- Lunch box platform with holding strap
- Coat Hook
- Cup holder
- Diagnostic Connection Port (12V)
- Dome Courtesy Light
- Engine speed lock
- Fan defroster
- Gauge Group
- Horn
- Implement Control Joystick
- Rearview Mirrors
- Radio Ready
- 2 radio openings, speakers, and 5-amp converter
- ROPS Cab with Sound Suppression and Pressurization
- Static Seatbelt, 2 piece
- Scraper Engine Controls
- Seat, Air Suspension, Cat Advanced Ride Management
- Steering Wheel – tilt and telescoping
- Storage Compartment
- Transmission Hold
- Windows – sliding side
- Windshield – laminated glass
- Windshield Wiper/Washer – front and rear
- Wrist Rest/Grab Handle
Power Train
- Tractor
- Scraper
Other Standard Equipment
- Tractor
- Scraper