Komatsu WA500-6H, Operation & Maintenance Manual

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4.9 Service procedure
Maintenance Every 2000 hours service
WA500-6H – VEAM430100
4-79
Replace hydraulic tank breather element
WARNING
z The parts and oil are at high temperature after the engine is
stopped, and may cause burns. Wait for the temperature to
go down before starting the work.
z
When removing the oil filler cap, turn it slowly to release the
internal pressure, then remove it.
1. Lower the bucket horizontally to the ground and turn the
parking brake switch ON.
2. Stop the engine and wait for the temperature at all parts to
go down.
3. Remove the cap of oil filler (F).
4. Remove the snap ring from breather (1), then remove the
breather cap.
5. Replace the filter element with a new part, then install the
breather cap and snap ring.
6. Tighten the cap of oil filler (F).
REMARK
It is possible to replace the element with the breather installed in
the tank. However, if the breather is removed, do not wrap the
taper thread of the breather with seal tape when assembling
again, and be careful not to tighten too much.
GK050214
1
F