Stop Engine Before Carrying Out Maintenance; Two Workers For Maintenance When Engine Is Running - Komatsu PC160LC-7KA Operation & Maintenance Manual

Hydraulic excavator
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SAFETY

STOP ENGINE BEFORE CARRYING OUT MAINTENANCE

Stop the machine on firm, level ground.
Select a place where there is no hazard of falling rocks or
landslides, or of flooding if the land is low.
Lower the work equipment completely to the ground and
stop the engine.
Turn the starting switch to the ON position. Operate the
work equipment control lever back and forth, left and right at
the full stroke 2 to 3 times to eliminate the remaining internal
pressure in the hydraulic circuit, and then push up safety
lock lever (1) to the LOCK position.
Put blocks under the track to prevent the machine from
moving.

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.
One worker must always sit in the operator's seat and be
ready to stop the engine at any time. All workers must main-
tain contact with the other workers.
Set safety lock lever (1) to the LOCK position.
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.
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.
SAFETY MAINTENANCE INFORMATION
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