Komatsu D31EX-21, Operation & Maintenance Manual, Page: 147 / 256

OPERATION
OPERATION
3-95
WORK POSSIBLE USING BULLDOZER 3
In addition to the following, it is possible to further increase the range of applications by using various attachments.
DOZING 3
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.
SMOOTHING 3
NOTICE
Avoid smoothing on rocky or stony ground. It can damage the blade.
To finish the ground to a flat surface after digging or leveling,
put a full load of soil in front of the blade and operate the blade
up and down in small movements while traveling forward.
Finally, place the blade at FLOAT and travel at low speed in
reverse while pulling the blade over the ground surface. Before
doing this, hold the lever by hand at the FLOAT position for at
least 1 second to make sure that it stays in position. To prevent
damage to the blade, be careful not to travel over any stones or
rocks.