Komatsu PC350LC-8, Operation & Maintenance Manual

Page: 59 / 502

SAFETY
SAFETY MAINTENANCE INFORMATION
2-37
STOP ENGINE BEFORE CARRYING OUT MAINTENANCE
q
Stop the machine on firm, level ground.
q
Select a place where there is no hazard of falling rocks or
landslides, or of flooding if the land is low.
q
Lower the work equipment completely to the ground and
stop the engine.
q
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
lock lever (1) to the LOCK position (L).
q
Check that the battery relay is off and main power is not
conducted. (Wait for approx. one minute after turning off
the engine starting switch key and press the horn switch. If
the horn does not sound, it is not activated.)
q
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.
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.