Document gbEOdnJ1xgx1Jp8V5wwnZkM4Q

Fic 45-11 --Crawler tractor equipped for site clearance has protective frame and screens to protect operator from falling and flying objects Courtesy Spade Plow Inc To help prevent the crest from caving in, stock piles and dumps frequently are graded uphill toward the crest so that trucks back up the slope Loads also may be dumped a safe distance from the crest and then leveled by a grader or bulldozer (Fig 45-10) Strongly built cabs and cab piotectors on canopies on trucks are effective in preventing injuries if vehicles overturn By staying in the cabs and not attempting to jump out when their trucks started to roll 01 slide over an embankment, drivers can escape serious injury Cabs also provide protection from bad weather and from dust Holes, ruts, and similar lough places on dumps and roadways may cause the fiont wheels of a tiuck to cramp so that the steer ing wheel spins, injuring fingers, arms, and nbs, particularly if the truck is not provided with power steering Gripping the wheel on the outside and not by the spokes, driving at reduced speed, and observing the ground ahead for rough places will help the driver avoid such injuries Floodlighting dunng night operations helps to prevent accidents Protective frames for heavy equipment All bulldozers, tractors, and similar equip ment used in clearing operations should be equipped with substantial guards, shields, canopies, and grilles to protect the operator fiom falling and flying objects (Fig 45-11) Ciawlers and rubber-tired vehicles, self- 1435