Komatsu PC45MR-30403, Operation And Maintenance Manual

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2.
Use a hammer and bar to drive out the lock pin (2).
If the bar is set against rubber pin lock (3) when it is hit,
the rubber pin lock (3) may break.
Set it against the back of lock pin (2).
3.
After removing the lock pin (2) and rubber pin lock (3),
check them.
If the lock pin (2) and rubber pin lock (3) are used in the
following conditions, it will cause the bucket tooth (1) to
come off during operation.
Check the shape of the parts. If they have any damage, re-
place them.
• Lock pin (2) is too short.
Dimension (B) is 1/3 or more of dimension (A) when
lock pin (2) is aligned with bottom face (C).
• The steel ball is about to come off.
Rubber (6) of rubber pin lock (3) is broken.
• The steel ball sinks.
Rubber (6) of rubber pin lock (3) is deteriorated and
steel ball (7) sinks into it when you press the ball by
hand.
4.
Remove the soil stuck to adapter (4) by using a putty knife.
5.
Use your hand or a hammer to push rubber pin lock (3) in-
to the hole of adapter (4).
When doing this, be careful that rubber pin lock (3) does
not fly out from the adapter surface.
6.
Clean the inside of bucket tooth (1), then install it to adapt-
er (4).
If there is mud stuck to bucket tooth (1) or if there are pro-
trusions, it will not enter adapter (4) properly, and there will
not be proper contact at the mating part.
MAINTENANCE MAINTENANCE PROCEDURE
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