Komatsu GD555-5 Operation & Maintenance Manual page 187

OPERATION
DIGGING LEFT V-DITCHES
NOTICE
Set the frame straight. If the machine is articulated, the side of the tire will be pushed against the opposite slope face (back slope),
and this will cause damage to the side face of the tire. In addition, mud will be pushed in between the tire and rim, and this will
cause problems such as leakage of air and flat tires.
1. Rotate the blade and set at an angle so that the soil will be
discharged on the inside of the rear right wheel.
2. Set the left edge of the blade in line with the outside of the front
left wheel.
3. Operate the power tilt so that the top of the blade is slightly in
front of the cutting edge.
4. Operate the right blade lift cylinder and raise the right edge of
the blade. (The left end of the blade determines the depth of the
ditch. The right end of the blade determines the shape of the
ditch.)
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OPERATION