Caterpillar 657G Scraper

Bowl

Heaped Capacity 44 cu yd (34 cu m)
Max Depth of Cut 17 in (42 cm)
Rated Payload 104,058 lbs (47,200 kg)
Struck Capacity 32 cu yd (24 cu m)
Width of Cut 13 ft (4 m)

Dimensions

Axle to Vertical Hitch Pin 24 in (61 cm)
Bail Length – Maximum (Push-Pull) 72 in (184 cm)
Front of Tractor to Front Axle 148 in (377 cm)
Ground Clearance – Tractor 25 in (65 cm)
Height – Overall Shipping 185 in (471 cm)
Height – Scraper Blade Maximum 27 in (68 cm)
Height – Top of Cab 12 ft (4 m)
Length – Overall Machine 636 in (1,616 cm)
Overall Height 16 ft (5 m)
Overall Length 53 ft (16 m)
Overall Width 14 ft (4 m)
Rear Axle – Rear of Machine 96 in (244 cm)
Tractor Ground Clearance 2 ft (1 m)
Wheel Base 36 ft (11 m)
Wheelbase 33 ft (10 m)
Width – Inside of Bowl 145 in (368 cm)
Width – Overall Machine 171 in (434 cm)
Width – Rear Tire Center Lines 111 in (281 cm)
Width – Tractor 142 in (360 cm)

Engine

Flywheel Power – Tractor/Scraper 447 kw (600) / 337 kW (451)
Scraper Engine Cat C15 with ACERT Technology
Tractor Engine Cat C18 with ACERT Technology

Hydraulic System

Apron Cylinder Bore 9 in (24 cm)
Apron Cylinder Stroke 30 in (76 cm)
Bowl Cylinder Bore 9 in (24 cm)
Bowl Cylinder Stroke 37 in (95 cm)
Compensator Settings – Cushion Hitch Circuit 3002 psi
Cushion Hitch Circuit 13 gpm (48 lpm)
Ejector Cylinder Bore 10 in (26 cm)
Ejector Cylinder Stroke 77 in (195 cm)
Relief Valve – Implement Circuit 1999 psi
Relief Valve – Steering Circuit 1959 psi
Scraper Circuit 153 gpm (579 lpm)
Secondary Steering Circuit 64 gpm (243 lpm)
Steering Circuit 100 gpm (378 lpm)

Operating Specifications

Alternator Supplied Amperage 75 amps
Cooling System Fluid Capacity 56 gal (213 l)
Differential Fluid Capacity 80 gal (301 l)
Engine Oil Fluid Capacity 27 gal (102 l)
Fuel Capacity 422 gal (1,597 l)
Hydraulic System Fluid Capacity 80 gal (303 l)
Operating Voltage 24 volts
Rated Load 110,000 lbs (49,895 kg)
Scraper Capacity – Heaped 73 cu yd (56 cu m)
Scraper Capacity – Struck 59 cu yd (45 cu m)
Tire Size 40.5/75 R39
Top Speed – Loaded 33 mph (53 kph)
Transmission Fluid Capacity 68 gal (257 l)
Wheel Coolant Fluid Capacity – each 69 gal (260 l)

Scraper Bowl

Apron Closure Force 39,200 lbs (17,781 kg)
Apron Opening 92 in (234 cm)
Capacity – Struck 32 cu yd (24 cu m)
Cutting Edge Thickness 2 in (5 cm)
Depth of Cut – Maximum 17 in (43 cm)
Depth of Spread – Maximum 26 in (66 cm)
Ground Clearance – Maximum 23 in (58 cm)
Rated Load 104,000 lbs (47,174 kg)
Scraper Capacity – Heaped 44 cu yd (34 cu m)
Width – Cut – To Router Bits 13 in (32 cm)

Scraper Engine

Bore 6 in (14 cm)
Displacement 928 cu in (15,207 cu cm)
Gross Power 478 hp (356 kw)
Make Caterpillar
Model C15 ACERT
Stroke 7 in (17 cm)

Service Refill Capacities – Scraper

Cooling System 24 gal (91 l)
Differential 44 gal (167 l)
Final Drive – Each 8 gal (30 l)
Transmission 32 gal (121 l)
Wheel Coolant – Each 34 gal (130 l)

Service Refill Capacities – Tractor

Cooling System 33 gal (125 l)
Crankcase 17 gal (64 l)
Differential 36 gal (136 l)
Final Drive – Each 6 gal (23 l)
Hydraulic Reservoir 80 gal (303 l)
Transmission 36 gal (136 l)
Wheel Coolant – Each 34 gal (130 l)
Windshield Washer 1 gal (2 l)

Steering System

Steering Angle – Left 85 degrees
Steering Angle – Right 90 degrees

Tractor Engine

Bore 6 in (14 cm)
Displacement 1,105 cu in (18,108 cu cm)
Flywheel Power – Tractor/Scraper 447 kW (600) / 337 kW (451)
Gross Power 632 hp (471 kw)
Gross Power – Gears 3-8 632 hp (471 kw)
Make Caterpillar
Model C18 ACERT
Net Power – Gears 1-2 564 hp (421 kw)
Net Power – Gears 3-8 600 hp (447 kw)
Stroke 7 in (18 cm)

Transmission

1 Forward 4 mph (6 kph)
2 Forward 6 mph (10 kph)
3 Forward 8 mph (13 kph)
4 Forward 11 mph (17 kph)
5 Forward 14 mph (23 kph)
6 Forward 19 mph (31 kph)
7 Forward 26 mph (41 kph)
8 Forward 35 mph (56 kph)
Max Speed Forward 36 mph (58 kph)
Max Speed Reverse 6 mph (10 kph)
Number of Forward Gears 8
Number of Reverse Gears 1
Reverse 6 mph (10 kph)
Top Speed – Loaded 33 mph (53 kph)
Transmission Type 8-speed automatic powershift with electronic control

Weights

Front Axel – loaded 129,244 lbs (58,624 kg)
Front Axle – empty 89,650 lbs (40,665 kg)
Operating Weight – Loaded – Approximate 268,817 lbs (121,933 kg)
Rear Axle – empty 59,767 lbs (27,110 kg)
Rear Axle – loaded 124,176 lbs (56,325 kg)
Total Operating – empty 149,417 lbs (67,774 kg)
Total Operating – Loaded 253,420 lbs (114,950 kg)

Weights – Push-Pull

Front Axle 93,842 lbs (42,566 kg)
Front Axle – Loaded 134,165 lbs (60,856 kg)
Rear Axle 66,663 lbs (30,238 kg)
Rear Axle – Loaded 130,340 lbs (59,121 kg)
Scraper Shipping 64,068 lbs (29,061 kg)
Total Operating – Empty 160,505 lbs (72,804 kg)
Total Operating – Loaded 264,505 lbs (119,978 kg)
Total Shipping 160,505 lbs (72,804 kg)
Tractor Shipping 93,635 lbs (42,472 kg)

Weights – Standard, Tandem

Front Axle 87,924 lbs (39,882 kg)
Front Axle Weight – Loaded 128,246 lbs (58,171 kg)
Rear Axle 62,837 lbs (28,502 kg)
Rear Axle – Weight – Loaded 126,515 lbs (57,386 kg)
Scraper Shipping 60,242 lbs (27,325 kg)
Total Operating – Empty 150,761 lbs (68,384 kg)
Total Operating – Loaded 254,761 lbs (115,558 kg)
Total Shipping 147,959 lbs (67,113 kg)
Tractor Shipping 87,717 lbs (39,788 kg)
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