12. OPERATION 12.10 WORK POSSIBLE USING BULLDOZER In addition to the following, it is possible to further in- crease the range of applications by using various attachments. 12.10.1 DOZING A bulldozer digs and transports dirt in a forward direction. Slope excavation can always be most effectively carried out by proceeding from the top downward. When dozing toward one side only, operate with angled blade (angledozer only). 12.10.2 SMOOTHING NOTICE Avoid smoothing on rocky or stony ground. It can dam- age the blade. Uneven ground surfaces remaining after digging can be le- velled off by fine operation of blade.
The basic method is to operate the machine at low speeds with the blade fully loaded with soil and sand. A flat finished surface is also possible by slowly backing the machine with the blade “floating” so it is dragged across the surface. However, avoid this on rocky or stony ground, as it may damage the blade. The D31PL, PLL can be used for leveling of fields where there are no rocks when the ground is too soft for standard swamp bulldozers to operate. 12.10.3 CUTTING INTO HARD OR FROZEN GROUND OR DITCHING NOTICE Do not perform severe operations such as uprooting by angling or tilting the blade. For digging and ditch excavation of hard or frozen ground, tilt the blade.
Even hard ground can be dug effectively by a tilted or angled blade. 2-35