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Snow Removal Equipment
Figure   14-41.Snowblower.

Equipment Operator Basic - Beginning construction equipment operators manual
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Plows The  plow  is  the  most  commonly  used  in  snow removal operations. Push plows are commonly referred to  as  blades  because  of  their  different  configurations. Three types of snow plow blades are the reversible, rollover, and combination. REVERSIBLE BLADE.— A reversible blade (fig. 14-38) is a snowplow blade that can be positioned to bulldoze snow straight ahead or angled to throw snow to the right or left. This is a smaller type of blade and is generally  mounted  on  light  trucks. Reversible plows are most efficient for clean-up work or for use in restricted areas where you desire to change the angle of the blade, rather than dead ahead. These plows are also good for removing light snow from roads, walks, platforms, and storage areas. Reversible plows  are  intended  for  slow-speed  operation  and  will not remove snow as effectively as other plows; however, they can be used to plow airfield pavements, even if they move less snow than other plows. ROLL-OVER BLADE.—  A roll-over blade (fig. 14-39) can plow snow to either side. It has a tapered moldboard, formed to give snow a lifting, rolling action and can throw snow a considerable distance at fairly high speeds. To change from right to left, raise the plow as high as it can go and (as the name implies) roll the plow over. The toe will remain at the bottom of the arc, and the heel will be the top of the arc. NOTE:  Come  to  a  complete  stop  to  prevent damaging the plow when rolling the blade over. There is only a few inches of clearance when the blade  passes  the  center. After you roll the blade over and before you begin another pass, return the blade hoist lever to the float position to allow the plow to follow the contour  of  the  pavement. Figure  14-38.—Reversible  blade. Figure 14-39.—Roll-over blade. The  maximum  speed  at  which  snow  removal equipment  is  allowed  to  operate  varies  with  each military  installation. Whenever possible, you should drive a roll-over snowplow 20 to 30 miles per hour (mph) to get good action off the end of the blade. If you drop the speed down to less than 20 mph, the snow does not have enough rolling action when it comes off the end of the blade, resulting in a high windrow. On the other hand, if you maintain a speed of 20 mph or more, the snow will be thrown off the end of the blade and be scattered thinly. When plowing windrows with a roll-over plow or a reversible or a combination blade, you can keep your speed up by taking less than a full blade of snow or by drifting out of the windrow until you regain your speed and then pulling back into the windrow. COMBINATION   BLADE.—   A  combination blade (fig. 14-40) can be used in either of three of the following   positions: Figure 14-40.—Combination blade. 14-33







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