Contents
Dimensions
| Overall Length | 637 in (16178 mm) |
| Overall Width | 171 in (4344 mm) |
| Overall Height | 185.4 in (4710 mm) |
| Wheelbase | 392.6 in (9973 mm) |
| Tractor Width | 141.7 ft in (3600 mm) |
| Tractor Ground Clearance | 25.4 in (645 mm) |
| Length to Rear of Machine from Rear Axle | 95.9 in (2435 mm) |
Weight
| Cat 657E | Standart | Push-Pull |
|---|---|---|
| Total Shipping Weight | 149032 lb (67600 kg) | 157366 lb (71380 kg) |
| Tractor Shipping Weight | 67726 lb (30720 kg) | 72819 lb (33030 kg) |
| Scraper Shipping Weight | 81307 lb (36880 kg) | 84547 lb (38350 kg) |
| Total Operating Weight (Empty) | 152290 lb (69078 kg) | 160623 lb (72857 kg) |
| Front Axle Weight (Empty) | 91374 lb (41447 kg) | 96374 lb (43714 kg) |
| Rear Axle Weight (Empty) | 60916 lb (27631 kg) | 64249 lb (29143 kg) |
| Total Operating Weight (Loaded) | 256290 lb (116251 kg) | 264623 lb (120031 kg) |
| Front Axel Weight (Loaded) | 130708 lb (59288 kg) | 134958 lb (61216 kg) |
| Rear Axle Weight (Loaded) | 125582 lb (56963 kg) | 129665 lb (58815 kg) |
Scraper Bowl
| Rated Payload | 104000 lb (47174 kg) |
| Scraper Capacity – Heaped | 44 yd3 (33.6 m3) |
| Scraper Capacity – Struck | 32 yd3 (24.5 m3) |
| Width Of Cut | 151.4 in (3846 mm) |
| Max Depth Of Cut | 17.4 in (440 mm) |
| Max Depth of Spread | 20 in (508 mm) |
| Apron Opening with Bowl 6 in (150 mm) above Ground Level | 92 in (2340 mm) |
| Apron Closure Force, Cutting Edge Fully Raised and Apron Opened 12 in (300 mm) | 39200 lbf (176 kN) |
| Max Available Hydraulic Penetration Force at Cutting Edge (empty) | 121000 lbf (542 kN) |
| Maximum Ground Clearance (cutting edge) | 22.8 in (580 mm) |
| Thickness of Optional Cutting Edge | 1.8 in (45 mm) |
| Top Speed (Loaded) | 31.1 mph (50.1 km/h) |
Engine Details
| Number Of Cylinders | 12 |
| Engine Make | CAT |
| Engine Model | Cat 3412E |
| Displacement | 1649 cu in (27 L) |
| Bore | 5.4 in (137 mm) |
| Stroke | 6.0 in (152 mm) |
| Gross Power | 632 hp (472 kw) |
| Net Power | 605 hp (451 kw) |
| Power Measured @ | 1900 rpm |
| Aspiration | Turbocharged and aftercooled |
Scraper Engine
| Number Of Cylinders | 8 |
| Engine Make | CAT |
| Engine Model | Cat 3408E |
| Displacement | 1099 cu in (18 L) |
| Bore | 5.4 in (137 mm) |
| Stroke | 6.0 in (152 mm) |
| Gross Power | 457 hp (341 kw) |
| Net Power | 440 hp (328 kw) |
| Power Measured @ | 1900 rpm |
| Aspiration | Turbocharged and aftercooled |
Transmission
| Type | 8F x 1R automatic power shift transmission |
| Max Forward Travel Speed | 31.1 mph (50.0 km/h) |
| Max Reverse Travel Speed | 5.7 mph (9.1 km/h) |
| Torque Converter | multiplies torque in first, second and reverse for higher rimpull and fast hydraulics when loading and dumping |
Operating Specifications
| Operating Voltage | 24 V |
| Alternator (Tractor / Scraper) | 75 amps / 35 amps |
| Battery (Tractor / Scraper) | 4x 12 V, 100 Ah / 4x 12 V, 100 Ah |
| Tire Size | 40.5/75 R39; 37.5R39 Radial (E-3) |
Hydraulics
| Steering Circuit Flow | 115 gpm (435 L/min) |
| Scraper Circuit Flow | 153 gpm (579 L/min) |
| Cushion Hitch Circuit Flow | 10 gpm (36.3 L/min) |
| Optional Supplemental Steering Circuit Flow | 61.2 gpm (232 L/min) |
| Relief Valve Settings for Steering Circuit | 1960 psi (13500 kPa) |
| Relief Valve Settings for Implement Circuit | 2000 psi (13790 kPa) |
| Relief Valve Settings for Cushion Hitch Circuit | 2640 psi (18200 kPa) |
Service Refill Capacities
| Capacities | Tractor | Scraper |
|---|---|---|
| Fuel Tank Capacity | 467 gal (1768 L) | |
| Hydraulic System Capacity | 79 gal (303 L) | |
| Engine Oil Capacity | 18 gal (68 L) | 12 gal (45 L) |
| Cooling System Capacity | 37 gal (144 L) | 29 gal (110 L) |
| Transmission Oil Capacity | 36 gal (136 L) | 32 gal (121 L) |
| Differential Capacity | 35 gal (133 L) | 44 gal (168 L) |
| Final drives (each side) | 6 gal (23 L) | 8 gal (30 L) |
| Wheel Coolant (each) | 34 gal (130 L) | 34 gal (130 L) |
