Komatsu WA250PT-5H, Operation & Maintenance Manual

Page: 144 / 255

Operation
OPERATION
Work possible using wheel loader
3-86
Leveling operations 0.
NOTICE
Always operate the machine in reverse when carrying
out leveling operations.
If it is necessary to carry out leveling operations when
traveling forward, do not set the bucket dumping angle
to more than 20 degrees.
Turn the E.C.S.S. switch OFF when carrying out level-
ing operations.
1. Scoop soil into the bucket. Move the machine backward
while spreading soil from the bucket little by little.
2. Go over the spread soil with the bucket teeth touching the
ground and level the ground by back-dragging.
3. Scoop some more soil into the bucket, put the lift arm con-
trol lever in FLOAT position, level the bucket at ground
level, and smooth the ground by moving backward.
Pushing operation 0.
CAUTION
Never set the bucket to the DUMP position when carrying out pushing operation.
When carrying out pushing operations, set the bottom of the bucket parallel to the ground surface.
Load and carry operations 0.
WARNING
When carrying a load, lower the bucket to lower the
center of gravity when traveling.
When the machine is traveling or the work equipment
is raised, the moment that the E.C.S.S. switch is
turned ON, the work equipment will move.
If operations are carried out with the E.C.S.S. switch
left at the ON position, the moment that the travel
damper is actuated, the work equipment will move.
The load and carry method for wheel loaders consists of a cycle of scooping -> hauling ->loading (into a hopper,
truck, etc.)
Always keep the travel path properly maintained.
When using the load and carry method, see “Precautions for using load and car method on page 3-97“.