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637K coal bowls are longer and higher than standard wheel tractor scraper bowls, allowing them to haul 38 m (50 yd) of low density loose coal. The bowls are designed and built to specifically deliver in coming loose coal to the stock pile and reserve stock piled coal to the feeder system.
| Flywheel Power - Tractor/Scraper | 425 kW (570 hp)/216 kW (290 hp) |
| Scraper Capacity - Heaped | 50 yd³ |
| Top Speed - Loaded | 34.7 mile/h |
| Brakes | ISO 3450:2011 |
| Steering System | ISO 5010:2007 |
| Seat Belt | SAE J386:FEB2006 |
| Falling Object Protective Structure (FOPS) | ISO 3449:2005 Level II |
| Reverse Alarm | ISO 9533:2010 |
| Rollover Protection Structure (ROPS) | ISO 3471:2008 for up to 21 282 kg (46,919 lb) |
| 180° Curb-to-Curb Turning Width | 42.59 ft |
| Flywheel Power - Tractor | 570 HP |
| Tires - Tractor | 37.25R35**E3 |
| Overall Width | 12.93 ft |
| Rated Engine RPM - Scraper | 2150 r/min |
| Rated Engine RPM - Tractor | 1900 r/min |
| Operating Weight - Empty | 117782 lb |
| Scraper Capacity - Heaped | 50 yd³ |
| Width - Cut | 11.5 ft |
| Top Speed - Loaded | 34.7 mile/h |
| Overall Length | 609.5 in |
| Fuel Tank Refill Capacity - Scraper | 370 gal (US) |
| Scraper Capacity - Struck | 41 yd³ |
| Overall Shipping Height | 13.62 ft |
| Maximum Depth of Cut | 17.7 in |
| Emissions | Cat C9.3 and Cat C18 engines meet U.S. EPA Tier 4 Final/EU Stage IV engine emission standards. |
| Maximum Depth of Spread | 21.1 in |
| Flywheel Power - Scraper | 290 HP |
| Rated Load | 34 472 kg (76,000 lb)/34.20 tonnes (38 tons) |
| Engine Model - Scraper | Cat C9.3 |
| Engine Model - Tractor | Cat C18 |
| Tires - Scraper | 37.25R35**E3 |
| Cooling System - Scraper | 16.1 gal (US) |
| Diesel Exhaust Fluid - Scraper | 5.8 gal (US) |
| Transmission System - Tractor | 29 gal (US) |
| Crankcase - Tractor | 13.7 gal (US) |
| Diesel Exhaust Fluid - Tractor | 8 gal (US) |
| Fuel Tank | 370 gal (US) |
| Transmission System - Scraper | 12.9 gal (US) |
| Hydraulic System | 37.5 gal (US) |
| Cooling System - Tractor | 19.8 gal (US) |
| Crankcase - Scraper | 6.5 gal (US) |
| Transmission Gear - Eighth | 34.7 mile/h |
| Transmission Gear - First | 3.4 mile/h |
| Transmission Gear - Fourth | 10.5 mile/h |
| Transmission Gear - Reverse | 6.2 mile/h |
| Transmission Gear - Third | 7.7 mile/h |
| Transmission Gear - Seventh | 25.7 mile/h |
| Transmission Gear - Fifth | 14.1 mile/h |
| Transmission Gear - Sixth | 19 mile/h |
| Transmission Gear - Second | 6.2 mile/h |
| Bail Raise | 1.5 s |
| Bowl Lower | 3.5 s |
| Apron Lower | 3.8 s |
| Ejector Retract | 8.5 s |
| Bail Lower | 2.1 s |
| Apron Raise | 4 s |
| Ejector Extend | 8.5 s |
| Bowl Raise | 3.5 s |
| Width - Overall Machine | 155 in |
| Width - Tractor | 137.8 in |
| Ground Clearance - Tractor | 26.1 in |
| Axle to Vertical Hitch Pin | 20 in |
| Height - Top of Cab | 147 in |
| Width - Outside Rear Tires | 143.2 in |
| Height - Scraper Blade Maximum | 21.2 in |
| Rear Axle - Rear of Machine | 95.4 in |
| Width - Rear Tire Centers | 96.9 in |
| Front of Tractor to Front Axle | 142.2 in |
| Width - Inside of Bowl | 134 in |
| Length - Overall Machine - Standard | 609.5 in |
| Height - Overall Shipping | 163 in |
| Wheel Base | 377 in |
| ROPS/FOPS | Meet ISO standards |
| Exterior Sound Power Level | The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A). |
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