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 657 Wheel Tractor-Scraper |
 651 Wheel Tractor-Scraper |
 621 Wheel Tractor-Scraper |
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Engine |
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|---|---|---|---|
| Tractor Engine | Cat C18 | Cat C18 | - |
| Scraper Engine | Cat C15 | - | - |
| Engine Model - Tractor | - | - | Cat C13 |
| Flywheel Power - Tractor | - | - | 407 HP |
| Note | - | - | Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards. |
| Rated Engine RPM - Tractor | - | - | 2000 r/min |
Tractor Engine |
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| Flywheel Power - Tractor/Scraper | 469kW (629 hp) / 353 kW (473 hp) | 469kW (629 hp) | 304 kW (407 hp) |
| Net Power | 469 kW/637 hp | 469 kW/637 hp | - |
| Gross Power (SAE J1995) | 637 HP | 637 HP | - |
| Net Power (ISO 14396) | 637 HP | 585 HP | - |
| Net Power (SAE J1349/ISO 9249) | 592 HP | 592 HP | - |
| Bore | 5.7 in | 5.7 in | - |
| Stroke | 7.2 in | 7.2 in | - |
| Displacement | 1105 in³ | 1105 in³ | - |
Scraper Bowl |
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| Scraper Capacity - Heaped | 44 yd³ | 44 yd³ | 24 yd³ |
| Rated Load | 104058 lb | 104058 lb | - |
| Capacity - Struck | 32 yd³ | 32 yd³ | - |
| Depth of Cut - Maximum | 16.4 in | 17.3 in | - |
| Width - Cut - To Router Bits | 12.5 ft | 12.5 ft | - |
| Ground Clearance - Maximum | 2.3 ft | 2.3 ft | - |
| Hyd. Penetration Force - 657G | 121000 lb | 121000 lb | - |
| Depth of Spread - Maximum | 26 in | 26 in | - |
| Apron Opening | 92 in | 92 in | - |
| Apron Closure Force | 39200 lb | 39200 lb | - |
Transmission |
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| Top Speed - Loaded | 33 mile/h | 34.9 mile/h | 33.5 mile/h |
| 1 Forward | 3.5 mile/h | 3.5 mile/h | - |
| 2 Forward | 6.5 mile/h | 6.5 mile/h | - |
| 3 Forward | 7.8 mile/h | 7.8 mile/h | - |
| 4 Forward | 10.6 mile/h | 10.6 mile/h | - |
| 5 Forward | 14.2 mile/h | 14.2 mile/h | - |
| 6 Forward | 19.2 mile/h | 19.2 mile/h | - |
| 7 Forward | 25.7 mile/h | 25.7 mile/h | - |
| 8 Forward | 34.9 mile/h | 34.9 mile/h | - |
| Reverse | 6.7 mile/h | 6.7 mile/h | - |
Scraper Engine |
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| Net Power | 353 kW/447 hp | - | - |
| Gross Power (SAE J1995) | 481 HP | - | - |
| Net Power (ISO 14396) | 480 HP | - | - |
| Net Power (SAE J1349/ISO 9249) | 415 HP | - | - |
| Bore | 5.4 in | - | - |
| Stroke | 6.75 in | - | - |
| Displacement | 928 in³ | - | - |
Weights - Push-Pull |
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| Total Shipping | 160505 lb | 160505 lb | - |
| Tractor Shipping | 93635 lb | 93635 lb | - |
| Scraper Shipping | 64068 lb | 64068 lb | - |
| Total Operating - Empty | 164244 lb | 164244 lb | - |
| Front Axle | 93842 lb | 93842 lb | - |
| Rear Axle | 66663 lb | 66663 lb | - |
| Total Operating - Loaded | 268302 lb | 268302 lb | - |
| Front Axle - Loaded | 134165 lb | 134165 lb | - |
| Rear Axle - Loaded | 130340 lb | 130340 lb | - |
Dimensions |
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| Width - Overall Machine | 14.3 ft | 14.3 ft | 141.1 in |
| Width - Tractor | 12.3 ft | 12.3 ft | 133.1 in |
| Width - Rear Tire Center Lines | 9.21 ft | 9.21 ft | - |
| Width - Inside of Bowl | 12.07 ft | 12.07 ft | 120 in |
| Width - Outside Bowl - Shipping Width | 12.98 ft | 12.98 ft | - |
| Height - Overall Shipping | 15.29 ft | 15.29 ft | 158.6 in |
| Height - Top of Cab | 12.86 ft | 12.86 ft | 142.2 in |
| Ground Clearance - Tractor | 2.3 ft | 2.3 ft | 21.9 in |
| Front of Tractor to Front Axle | 14.93 ft | 14.93 ft | 122.8 in |
| Axle to Vertical Hitch Pin | 1.8 ft | 1.8 ft | 21.3 in |
| Height - Scraper Blade Maximum | 2.17 ft | 2.17 ft | 20.5 in |
| Wheel Base | 32.68 ft | 32.68 ft | 314.9 in |
| Length - Overall Machine | 58.96 ft | 58.96 ft | - |
| Rear Axle - Rear of Machine | 8.07 ft | 8.07 ft | 114.1 in |
| Width - Outside Rear Tires | - | - | 128.9 in |
| Length - Overall Machine - Standard | - | - | 551.8 in |
| Length - Maximum (Push-Pull) | - | - | 613.2 in |
| Width - Overall Machine - Ladder Down | - | - | 149.2 in |
| Width - Rear Tire Centers | - | - | 90.2 in |
Steering |
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| Width - 180° Turn - Right | 45.4 ft | 44.6 ft | - |
| Width - 180° Turn - Left | 47.57 ft | 47.57 ft | - |
| Steering Angle - Right | 90 | 90 | - |
| Steering Angle - Left | 85 | 85 | - |
Service Refill Capacities - Tractor |
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| Crankcase | 13.7 gal (US) | 13.7 gal (US) | - |
| Transmission | 35.9 gal (US) | 35.9 gal (US) | - |
| Differential | 36 gal (US) | 36 gal (US) | - |
| Final Drive - Each | 6 gal (US) | 6 gal (US) | - |
| Cooling System | 23.4 gal (US) | 23.4 gal (US) | - |
| Hydraulic Reservoir | 39.6 gal (US) | 39.6 gal (US) | - |
| Windshield Washer | 0.5 gal (US) | 0.5 gal (US) | - |
Hydraulics |
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| Bowl Cylinder Bore | 7.08 in | 7.08 in | - |
| Bowl Cylinder Stroke | 37.4 in | 37.4 in | - |
| Apron Cylinder Bore | 7.08 in | 7.08 in | - |
| Apron Cylinder Stroke | 29.92 in | 29.92 in | - |
| Ejector Cylinder Stroke (Stage 1/ Stage 2) | 38.32 in | - | - |
| Steering Circuit (@ High Idle) | 76.08 gal/min | 76.08 gal/min | - |
| Implement Circuit (@ High Idle) | 517 l/min | - | - |
| Cushion Hitch Circuit | 19.54 gal/min | 19.54 gal/min | - |
| Secondary Steering Circuit | 14.52 gal/hr | 14.52 gal/hr | - |
| Relief Valve - Steering Circuit | 1959 psi | 1959 psi | - |
| Relief Valve - Implement Circuit | 1999 psi | 1999 psi | - |
| Compensator Settings - Cushion Hitch Circuit | 3002 psi | 3002 psi | - |
Service Refill Capacities - Scraper |
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| Fuel Tank | 430 gal (US) | 430 gal (US) | - |
| Crankcase | 8.9 gal (US) | 8.9 gal (US) | - |
| Transmission | 31.9 gal (US) | 31.9 gal (US) | - |
| Differential | 44 gal (US) | 44 gal (US) | - |
| Final Drive - Each | 7.8 gal (US) | 7.8 gal (US) | - |
| Cooling System | 16.6 gal (US) | 16.6 gal (US) | - |
General |
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| Overall Shipping Height | - | - | 13.22 ft |
| Overall Width | - | - | 11.75 ft |
| Scraper Capacity - Heaped | - | - | 24 yd³ |
| Fuel Tank Refill Capacity - Scraper | - | - | 216.1 gal (US) |
| Tires - Scraper | - | - | 33.25R29**E3 |
| Width - Cut | - | - | 10.3 ft |
| Maximum Depth of Spread | - | - | 21.3 in |
| Top Speed - Loaded | - | - | 33.5 mile/h |
| Rated Load | - | - | 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons) |
| 180° Curb-to-Curb Turning Width | - | - | 38.71 ft |
| Scraper Capacity - Struck | - | - | 17.1 yd³ |
| Maximum Depth of Cut | - | - | 12.4 in |
| Tires - Tractor Drive | - | - | 33.25R29**E3 |
Service Refill Capacities |
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| Hydraulic System | - | - | 21.926 gal (US) |
| Crankcase | - | - | 8.08 gal (US) |
| Transmission System | - | - | 24.76 gal (US) |
| Cooling System | - | - | 11.89 gal (US) |
| Fuel Tank | - | - | 216.09 gal (US) |
| Diesel Exhaust Fluid | - | - | 8.057 gal (US) |
Non Push-Pull |
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| Operating Weight - Empty | - | - | 79787 lb |
| Overall Length | - | - | 45.9 ft |
Push-Pull |
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| Overall Length - With Bail Down | - | - | 51.1 ft |
| Operating Weight - Empty | - | - | 80630 lb |
Cab |
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| Exterior Sound Level | - | - | The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A). |
| ROPS/FOPS | - | - | Meets SAE and ISO standards |
Safety Criteria Compliance Standards |
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| Rollover Protection Structure (ROPS) | - | - | ISO 3471:2008 for up to 17 084 kg (37,664 lb) |
| Brakes | - | - | ISO 3450:1996 |
| Reverse Alarm | - | - | ISO 9533:2010 |
| Falling Object Protective Structure (FOPS) | - | - | ISO 3449:2005 Level II |
| Seat Belt | - | - | SAE J386:JUN1985 |
| Steering System | - | - | ISO 5010:2007 |
Travel Speeds - Runout |
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| Transmission Gear - Seventh | - | - | 24.8 mile/h |
| Transmission Gear - Fifth | - | - | 13.6 mile/h |
| Transmission Gear - First | - | - | 3.1 mile/h |
| Transmission Gear - Sixth | - | - | 18.4 mile/h |
| Transmission Gear - Second | - | - | 5.5 mile/h |
| Transmission Gear - Third | - | - | 7.5 mile/h |
| Transmission Gear - Fourth | - | - | 10.1 mile/h |
| Transmission Gear - Eighth | - | - | 33.5 mile/h |
| Transmission Gear - Reverse | - | - | 5.7 mile/h |
Implement Cycle Times |
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| Apron Raise | - | - | 2.95 s |
| Bowl Raise | - | - | 3 s |
| Ejector Retract | - | - | 6.7 s |
| Bowl Lower | - | - | 3.5 s |
| Apron Lower | - | - | 3.8 s |
| Ejector Extend | - | - | 5.2 s |
| Bail Lower | - | - | 3.2 s |
| Bail Raise | - | - | 1.8 s |
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