Komatsu WA800-3E0, Operation & Maintenance Manual

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SERVICE PROCEDURE
MAINTENANCE
4-32
REPLACE BUCKET TEETH 4
WARNING
q
It is dangerous if the work equipment moves by mistake when the teeth are being replaced.
Set the work equipment in a stable condition, stop the engine, and lock the work equipment control
levers securely with the work equipment lock lever.
q
If the pins are hit with a strong force, there is danger that the pin may fly. Make sure that there is no
person in the surrounding area.
q
Pieces may fly during the replacement operation, so always wear protective glasses, gloves, and other
protective equipment.
BUCKET WITH TIP TOOTH
Replace the teeth before they wear down as far as the adapter.
1. Raise the bucket to a suitable height, then put blocks under
the bucket to keep the bottom of the bucket horizontal.
2. Stop the engine.
3. Remove pin (2), then remove tooth (1).
When knocking out the pin, use a bar of a diameter slightly
smaller than the pin, and knock out from the opposite side.
REMARK
If it cannot be removed by this method, for safety reasons,
always contact your Komatsu distributor to have the replace-
ment carried out.
4. Clean bucket and adapter (3).
5. Fit new tooth (1) in adapter (3), push in pin (2) partially by
hand, then knock it in with a hammer.
6. After operating the machine for a few hours, check that the
pin does not come out.