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 to Top Of Scraper 15.16 ft in (4.63 m)
Height – Overall Shipping 185.4 in (4709 mm)
Length – Overall 56.4 ft in (17.2 m)
Front Of Tractor To Front Axle 148.4 in (3769 mm)
Rear Axle – Rear Of Machine 95.98 in (2438 mm)
Tread – Scraper 9.24 ft in (2.82 m)
Tread – Tractor 8.64 ft in (2.64 m)
Width – Tractor 141.78 in (3601 mm)
Width – Inside Of Bowl 145 in (3683 mm)
Width – Outside Bowl – Shipping Width 154 in (3912 mm)
Width – Rear Tire Center Lines 110.75 in (2813 mm)
Height – Scraper Blade Maximum 26.77 in (680 mm)
Bail Length – Maximum (Push-Pull) 72.28 in (1836 mm)
Axle To Vertical Hitch Pin 23.94 in (608 mm)

CAT 657G Motor Scraper Dimensions and Weight

Weight

Weights Standard Push-Pull
Total Shipping Weight 147959 lb (67113 kg) 160505 lb (72804 kg)
Tractor Shipping Weight 87717 lb (39788 kg) 93635 lb (42472 kg)
Scraper Shipping Weight 60242 lb (27325 kg) 64068 lb (29061 kg)
Total Operating Weight (Empty) 150761 lb (68384 kg) 160505 lb (72804 kg)
Front Axle Weight (Empty) 87924 lb (39882 kg) 93842 lb (42566 kg)
Rear Axle Weight (Empty) 62837 lb (28502 kg) 66663 lb (30238 kg)
Total Operating Weight (Loaded) 254761 lb (115558 kg) 264505 lb (119978 kg)
Front Axle Weight (Loaded) 128246 lb (58172 kg) 134165 lb (60856 kg)
Rear Axle Weight (Loaded) 126515 lb (57386 kg) 130340 lb (59121 kg)

CAT 657G Motor Scraper Bowl Specs

Scraper Bowl

Rated Payload 104000 lb (47174 kg)
Heaped Capacity 44 yd3 (33.6 m3)
Struck Capacity 32 yd3 (24.5 m3)
Width of Cut (Router Bits) 151.4 in (3846 mm)
Max Depth of Cut 16.7 in (425 mm)
Max Depth of Spread 26 in (660 mm)
Maximum Ground Clearance 23 in (580 mm)
Cutting Edge Thickness 1.8 in (45 mm)
Apron Opening 92 in (2337 mm)
Apron Closure Force 39200 lbf (176 kN)
Hydraulic Penetration Force 121000 lbf (542 kN)

Engine Details

Number Of Cylinders 6
Engine Make CAT
Engine Model Cat C18 with ACERT Technology
Displacement 1105 cu in (18.1 L)
Bore 5.7 in (145 mm)
Stroke 7.2 in (183 mm)
Gross Power 632 hp (471 kw)
Net Power 600 hp (447 kw)
Power Measured @ 1800 rpm
Aspiration Turbocharged
Emission Standards U.S. EPA Tier 3, EU Stage III

Scraper Engine

Number Of Cylinders 6
Engine Make Cat
Engine Model Cat C15 ACERT
Displacement 928 cu in (15.3 L)
Bore 5.5 in (139.7 mm)
Stroke 6.5 in (165.1 mm)
Gross Power 478 hp (356 kw)
Net Power 451 hp (337 kw)
Power Measured @ 1800 rpm
Aspiration Turbocharged
Emission Standards U.S. EPA Tier 3, EU Stage III

Operational Specs

Operating Voltage 24 V
Alternator (Tractor / Scraper) 80 amps / 50 amps
Battery (Tractor / Scraper) 4x 12 V / 4x 12 V
Tire Size 40.5/75 R39

Transmission

Transmission Type Automatic powershift with electronic control
Number Of Forward Gears 8
Number Of Reverse Gears 1
Forward 1 3.5 mph (5.7 km/h)
Forward 2 6.3 mph (10.2 km/h)
Forward 3 7.8 mph (12.6 km/h)
Forward 4 10.6 mph (17.1 km/h)
Forward 5 14.1 mph (22.7 km/h)
Forward 6 19 mph (30.6 km/h)
Forward 7 25.6 mph (41.2 km/h)
Forward 8 34.6 mph (55.7 km/h)
Reverse 1 6.1 mph (9.8 km/h)

Steering

Steering Angle – Right 90 degrees
Steering Angle – Left 85 degrees
Width – 180 Degrees Turn – Right 44.7 ft in (13.7 m)
Width – 180 Degrees Turn – Left 47.6 ft in (14.5 m)
Top Speed – Loaded 33 mph (53.2 km/h)
180 Degrees Curb-To-Curb Turning Width 51.3 ft in (15.7 m)

CAT 657G Motor Scraper Specifications

Hydraulics

Steering Circuit 99.9 gal/min (378 L/min)
Secondary Steering Circuit 64.2 gal/min (243 L/min)
Scraper Circuit 153 gal/min (579 L/min)
Cushion Hitch Circuit 12.7 gal/min (48 L/min)
Relief Valve – Steering Circuit 1959 psi (13500 kPa)
Relief Valve – Implement Circuit 1999 psi (13780 kPa)
Compensator Settings – Cushion Hitch Circuit 3002 psi (20700 kPa)
Bowl Cylinder Bore 9.3 in (235 mm)
Bowl Cylinder Stroke 37.4 in (950 mm)
Ejector Cylinder Bore 10.3 in (260 mm)
Ejector Cylinder Stroke 76.7 in (1946 mm)
Apron Cylinder Bore 9.3 in (235 mm)
Apron Cylinder Stroke 30 in (760 mm)

Service Refill Capacities

Capacities Tractor Scraper
Engine Oil Capacity 17 gal (64 L) 10 gal (38 L)
Cooling System Capacity 33 gal (125 L) 24 gal (89 L)
Transmission Oil Capacity 36 gal (136 L) 32 gal (121 L)
Differential Oil Capacity 36 gal (136 L) 44 gal (168 L)
Final Drive (Each) 6 gal (23 L) 7.9 gal (30 L)
Wheel Coolant (Each) 34.3 gal (130 L) 34.3 gal (130 L)
Windshield Washer 0.5 gal (2 L)
Hydraulic Tank Capacity 80 gal (303 L)
Fuel Tank Capacity 422 gal (1597 L)
Ask a question