When side slopes are finished by working parallel to the right-of-way (fig. 11-36), the dozer starts at the top. Material from each pass falls to the lower side of the blade and forms a windrow that is picked up on succeeding passes, filling irregularities in the terrain. Do not allow the blade corner to dig, since this steepens the slope beyond job specifications. In finishing side slopes by working diagonally, start the dozer at the bottom and work diagonally up the slope (fig. 11-37). A windrow is formed and is continually drifted to one side, tending to fill low spots or irregularities. l Navy safety regulations require that all dozers be equipped with roll-over protective strictures (ROPS), crankcase guards, and radiator protectors. All dozers purchased by the Navy are equipped with these devices. Dozers must never be used without these devices in place. l Always wear a seat belt when dozing. A sudden jolt from working on uneven terrain can possibly throw you off the machine or against the control levers, causing serious injury or death. NOTE: Diagonally finishing a side slope is one of the few instances when a dozer maybe used efficiently . . . . l Obtain a digging permit before performing excavation operations with a dozer. in cutting upgrade. - l When using a dozer for demolition, take care to prevent falling objects from striking the operator or other personnel. Push Dozer The push dozer in figure 11-38 is equipped with a push blade. However, in most cases, a straight-blade dozer that has a reinforced block in the center of the blade is used. Ensure the center lines of the pusher and scraper are aligned. If alignment is not centered, it is hard to keep the pusher straight without extensive use of the steering clutch. When you are using the steering clutch, power is taken away from one track, and the other track is doing all the work. If the scraper starts to l When felling trees with a dozer, take care to avoid being struck by falling branches or by the backlash of a branch or trunk. l A dozer should never be used for clearing trees without being equipped with an operator’s protective cage (brush cage). l Personnel must never ride the dozer drawbar. jackknife, stop pushing, back up, and get repositioned his dangerous practice has been the cause of numerous straight with the scraper. Be sure the blade of the dozer accidents. does not cut the rear tires of the scraper, resulting in downtime and costly tire replacement. Dozer Safety l Operators of dozers and rippers should make every effort to learn the locations of any underground high-voltage electric lines or gas lines that might be contacted by their equipment. Standard safety precautions that apply to dozer operations are as follows: l Operate the dozer from the sitting position, never from a standing position. l Only operate the dozer at speeds at which control of the dozer can be maintained at all times. l A dozer must be operated with extreme care when near the edge of a cut; the edge may give way, overturning the machine. l A steep incline should be climbed slowly. “Gunning” up a steep slope has often caused dozers to overturn. *Do sideways not attempt a turn may not appear to on a steep slope. Sliding be dangerous, but it can easily become so if the low side of the dozer hits a solid rock or a stump. l Coupling trailing equipment ous; be especially alert while to a dozer is hazard- this is being done. Figure 11=38.-Push dozer. Whenever possible, equipment should be coupled with the dozer stopped and the clutch, if so equipped, 11-18
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business