CAT 657G Motor Scraper

Dimensions

Overall Length 53.03 ft in (16164 mm)
Overall Width 14.25 ft in (4344 mm)
Overall Height 15.45 ft in (4710 mm)
Wheelbase 32.66 ft in (9956 mm)
Tractor Ground Clearance 2.12 ft in (645 mm)
Height To Top Of Cab 12.18 ft in (3712 mm)
Height – Top Of Cab 12.18 ft in (0.31 m)
Height – Top Of Scraper 15.16 ft in (4.63 m)
Length – Overall 56.4 ft in (17.2 m)
Length – Overall Machine 636.38 in (16164.06 mm)
Rear Axle – Rear Of Machine 95.98 in (2437.9 mm)
Tread – Scraper 9.24 ft in (2.82 m)
Tread – Tractor 8.64 ft in (2.64 m)
Wheel Base 36.08 ft in (11 m)
Width – Inside Of Bowl 145 in (3683 mm)
Width – Outside Bowl – Shipping Width 154 in (3911.6 mm)
Width – Overall 14.32 ft in (4.37 m)
Width – Overall Machine 171 in (4343.4 mm)
Width – Rear Tire Center Lines 110.75 in (2813.05 mm)
Axle To Vertical Hitch Pin 23.94 in (608.08 mm)
Width – Tractor 141.78 in (3600.96 mm)
Bail Length – Maximum (Push-Pull) 72.28 in (1835.92 mm)
Front Of Tractor To Front Axle 148.4 in (3769.36 mm)
Ground Clearance – Tractor 25.39 in (644.91 mm)
Height – Overall Shipping 185.4 in (4709.16 mm)
Height – Scraper Blade Maximum 26.77 in (679.96 mm)

Tractor Engine

Make CAT
Model C18 ACERT
Gross Power 632 hp (471 kw)
Displacement 1105 cu in (18.2 L)

Engine Details

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

Tractor Engine

Flywheel Power – Tractor/Scraper 447 kW (600 hp) / 337 kW (451 hp)
Net Power – Gears 1-2 564 hp (420.6 kw)
Gross Power – Gears 1-2 596 hp (444.5 kw)
Bore 5.7 in (144.8 mm)
Stroke 7.2 in (182.9 mm)
Net Power – Gears 3-8 600 hp (447.5 kw)
Gross Power – Gears 3-8 632 hp (471.3 kw)

Engine Details

Scraper Engine Cat C15 with ACERT Technology

Scraper Engine

Make CAT
Model C15 ACERT
Gross Power 478 hp (356 kw)
Displacement 928 cu in (15.3 L)
Bore 5.5 in (139.7 mm)
Stroke 6.5 in (165.1 mm)
Gross Power – Gears 1-2 437 hp (325.9 kw)
Gross Power – Gears 3-8 478 hp (356.5 kw)
Net Power – Gears 1-2 410 hp (305.8 kw)
Net Power – Gears 3-8 451 hp (336.4 kw)

Operational Specs

Fuel Tank Capacity 421.9 gal (1597 L)
Cooling System Fluid Capacity 56.3 gal (213 L)
Engine Oil Fluid Capacity 26.9 gal (102 L)
Transmission Fluid Capacity 68 gal (257 L)
Differential Fluid Capacity 79.5 gal (301 L)
Hydraulic System Fluid Capacity 80 gal (303 L)
Wheel Coolant Fluid Capacity – Each 68.6 gal (260 L)
Operating Voltage 24 V
Alternator Supplied Amperage 75 amps
Tire Size 40.5/75 R39

Transmission

Transmission Type 8-speed automatic powershift with electronic control
Number Of Forward Gears 8
Number Of Reverse Gears 1
Max Speed Forward 36 mph (55.7 km/h)
Max Speed Reverse 6 mph (9.7 km/h)
Reverse 6.1 mile/h

Steering

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

Transmission

1 Forward 3.5 mph (5.7 km/h)
2 Forward 6.3 mph (10.2 km/h)
3 Forward 7.8 mph (12.6 km/h)
4 Forward 10.6 mph (17.1 km/h)
5 Forward 14.1 mph (22.7 km/h)
6 Forward 19 mph (30.6 km/h)
7 Forward 25.6 mph (41.2 km/h)
8 Forward 34.6 mph (55.7 km/h)
Top Speed – Loaded 33 mph (53.2 km/h)

Steering

Width – 180 Degrees Turn – Right 44.7 ft in (13.7 m)
Width – 180 Degrees Turn – Left 47.6 ft in (14.5 m)

Weights

Total Operating – Empty 149417 lb (67774 kg)
Front Axle – Empty 89650 %
Rear Axle – Empty 59767 %
Total Operating – Loaded 253420 lb (114949 kg)
Front Axel – Loaded 129244 lb (58624 kg)
Rear Axle – Loaded 124176 %
Operating Weight – Loaded – Approximate 268817 lb (121933.4 kg)
Operating Weight – Empty – Approximate 158817 lb (72038.2 kg)

Bowl

Rated Payload 104058 lb (47200 kg)
Heaped Capacity 44 yd3 (33.6 m3)
Struck Capacity 32 yd3 (24.5 m3)
Max Depth Of Cut 16.7 in (425 mm)
Width Of Cut 12.5 ft in (3846 mm)

Operating Specifications

Top Speed – Loaded 33 mph (53.2 km/h)
Rated Load 110000 lb (49895.2 kg)
Scraper Capacity – Struck 59 yd3 (45.2 m3)
Scraper Capacity – Heaped 73 yd3 (55.9 m3)
180 Degrees Curb-To-Curb Turning Width 51.3 ft in (15.7 m)

Hydraulics

Bowl Cylinder Bore 9.3 in (235 mm)
Bowl Cylinder Stroke 37.4 in (950 mm)
Steering Circuit 99.9 gal/min
Scraper Circuit 153 gal/min
Cushion Hitch Circuit 12.7 gal/min
Relief Valve – Steering Circuit 1959 psi
Relief Valve – Implement Circuit 1999 psi
Compensator Settings – Cushion Hitch Circuit 3002 psi
Ejector Cylinder Bore 10.3 in (260.1 mm)
Ejector Cylinder Stroke 76.7 in (1945.9 mm)
Secondary Steering Circuit 64.2 gal/min
Apron Cylinder Bore 9.3 in (235 mm)
Apron Cylinder Stroke 30 in (760 mm)

Scraper Bowl

Width – Cut – To Router Bits 12.7 in (322.6 mm)
Rated Load 104000 lb (47173.7 kg)
Capacity – Struck 32 yd3 (24.5 m3)
Depth Of Cut – Maximum 17 in (431.8 mm)
Ground Clearance – Maximum 23 in (584.2 mm)
Cutting Edge Thickness 1.8 in (45.8 mm)
Depth Of Spread – Maximum 26 in (660.4 mm)
Scraper Capacity – Heaped 44 yd3 (33.7 m3)
Apron Closure Force 39200 lb (17780.9 kg)
Apron Opening 92 in (2336.8 mm)
Hyd. Penetration Force – 657g 121000 lb (54884.7 kg)

Service Refill Capacities – Scraper

Transmission 32 gal (121.2 L)
Differential 44 gal (166.6 L)
Final Drive – Each 7.9 gal (30 L)
Cooling System 24 gal (90.9 L)
Crankcase 10 gal (37.9 L)
Wheel Coolant – Each 34.3 gal (129.9 L)
Fuel Tank – 657g 421.9 gal (1597.1 L)

Service Refill Capacities – Tractor

Transmission 36 gal (136.3 L)
Differential 36 gal (136.3 L)
Final Drive – Each 6 gal (22.8 L)
Cooling System 33 gal (125 L)
Hydraulic Reservoir 80 gal (302.9 L)
Crankcase 17 gal (64.4 L)
Wheel Coolant – Each 34.3 gal (129.9 L)
Windshield Washer 0.5 gal (1.9 L)

Weights – Standard, Tandem

Total Shipping 147959 lb (67113.1 kg)
Tractor Shipping 87717 lb (39787.8 kg)
Scraper Shipping 60242 lb (27325.4 kg)
Total Operating – Empty 150761 lb (68384.1 kg)
Front Axle 87924 lb (39881.7 kg)
Rear Axle 62837 lb (28502.4 kg)
Total Operating – Loaded 254761 lb (115557.7 kg)
Front Axle Weight – Loaded 128246 lb (58171.5 kg)
Rear Axle – Weight – Loaded 126515 lb (57386.3 kg)

Weights – Push-Pull

Total Shipping 160505 lb (72803.9 kg)
Tractor Shipping 93635 lb (42472.2 kg)
Scraper Shipping 64068 lb (29060.8 kg)
Total Operating – Empty 160505 lb (72803.9 kg)
Front Axle 93842 lb (42566.1 kg)
Rear Axle 66663 lb (30237.9 kg)
Total Operating – Loaded 264505 lb (119977.5 kg)
Front Axle – Loaded 134165 lb (60856.3 kg)
Rear Axle – Loaded 130340 lb (59121.3 kg)
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