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