Komatsu WA250PT-5H, Operation & Maintenance Manual

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Service procedure
MAINTENANCE
When required
4-32
Replace bucket teeth 0.
WARNING
If the pin is hit out with strong force, there is danger that the pin may fly out. Check that there is no
one in the surrounding area.
There is danger of pieces flying during the replacement operation, so always wear protective cloth-
ing, such as safety glasses and gloves.
Bucket with tip tooth 0.
(If equipped)
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 prevent the bucket from coming
down.
Raise the bucket so that the bottom surface of the bucket is horizontal.
2. Remove pin (2) installed to the bucket, then remove tooth
(1).
Put a rod (slightly narrower than the pin) in contact with the
hatched portion (either left or right) and tap pin (2) out to the
opposite side.
3. Fit new tooth (1) in adapter (3), push in pin (2) partially by
hand, then knock it in with a hammer.
4. After operating the machine for a few hours, check that the
pin does not come out.