Komatsu WA320-5H Operation & Maintenance Manual page 54

SAFETY
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 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.
q Never drop or insert tools or other objects into the fan or
fan belt. Parts may break or be sent flying.
q Set safety lock lever (1) to the LOCK position to prevent
the work equipment from moving. Then pull parking brake
lever (2) to the position to prevent the machine from mov-
ing.
q Do not touch any control levers. If any control lever must
be operated, give a signal to the other workers to warn
them to move to a safe place.
INSPECTION AND MAINTENANCE AFTER TURNING E.C.S.S. SWITCH OFF
For machines equipped with a E.C.S.S. lower the bucket to the ground, turn the E.C.S.S. switch OFF, and stop the
engine before starting inspection or maintenance. NEVER turn the switch ON during inspection or maintenance.
PROPER TOOLS
Use only tools suited to the task and be sure to use the tools
correctly. Using damaged, low quality, faulty, makeshift tools or
improper use of the tools could cause serious personal injury.
PRECAUTIONS FOR MAINTENANCE
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