Komatsu PC450-8, Operation & Maintenance Manual

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ATTACHMENTS ANDD OPTIONS
MACHINE READY FOR ATTACHMENT
6-15
Replace Additional Breaker Filter Element 6
WARNING
q
The parts and oil are at high temperature after the
engine is stopped, and may cause serious burns. Wait
for the temperature to go down before cleaning the
engine breather.
q
When using compressed air, there is a hazard that dirt
may be blown up and cause serious injury.
Always use safety glasses, dust mask, or other protec-
tive equipment.
NOTICE
For details of the replacement interval for the element, “MAINTENANCE INTERVAL FOR HYDRAULIC
BREAKER (4-19)“.
q
Prepare a container to catch the oil.
1. Lower the work equipment to the ground and stop the
engine.
2. Turn the starting switch to the ON position (B), then set the
lock lever to the FREE position (F).
3. After carrying out Step 2, operate each work equipment
control lever and attachment control pedal fully to the front,
rear, left, and right 2 or 3 times within 15 seconds to
release the internal pressure in the hydraulic circuit.