Komatsu WA800-3E0, Operation & Maintenance Manual

Page: 56 / 336

PRECAUTIONS FOR MAINTENANCE
SAFETY
2-34
q
Turn parking brake switch (4) to the ON position, then put
blocks under the front and rear of the tires.
q
Set frame lock bar (5) to LOCK position (L) to lock the front
frame and rear frame.
TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING
To prevent injury, do not carry out maintenance with the engine running. If maintenance must be carried out with
the engine running, carry out the operation with at least two workers and do as follows.
q
One worker must always sit in the operator's seat and be
ready to stop the engine at any time. All workers must
maintain contact with the other workers.
q
Never drop or insert tools or other objects into the fan or
fan belt. Parts may break or be sent flying.
q
When carrying out operations near the fan, fan belt, or
other rotating parts, there is a hazard of being caught in the
parts, so be careful not to come close.