Komatsu WA500-6H, Operation & Maintenance Manual

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3.3 Operation Operation
3-140
WA500-6H – VEAM430100
Procedure for operations using v-shape loading of dump
trucks
Preparations for loading, gathering rocks
Always keep the job area level and remove any rocks or boul-
ders.
NOTE
z When gathering rocks, if the operation is carried out over an
area longer than the length of the machine, there is danger
that the machine will ride up on boulders and suffer cuts to
the tires. When gathering rocks, always carry out the opera-
tion in an area shorter than the length of the machine.
z
When carrying out operations with the bucket in contact with
the ground, do not articulate the machine. This will cause tire
slippage and damage to the machine.
1. Put the bucket horizontally in contact with the ground, drive
forward, and gather the rocks that have been scattered after
loading and after splitting or blasting.
2. After collecting the rocks in an area the length of the
machine, change the direction of the machine to gather
rocks and increase the area of level ground.
Approaching facing
NOTE
z
When lowering the bucket to the ground, reduce the lower-
ing speed of the bucket when it is close to the ground and
bring it slowly into contact with the ground. If the bucket is
dropped suddenly, the machine frame will be subjected to
excessive shock, and this will lead to damage. In addition,
the tires will slip and suffer premature wear.
z When digging or lowering the roadbed, keep the angle
between the bucket and the ground surface to a maximum of
8°. There is danger of damage to the work equipment.
z Do not load the bucket or scoop up the load with the load on
the corner of the bucket or the load on one side of the
bucket. This will cause the machine to twist and will reduce
the service life of the work equipment and the frame.
1. Set the machine to the travel posture.
2. Set the shift position to F2, then gradually depress the accel-
erator pedal and raise the travel speed.
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