Komatsu PC400LC-5 Operation & Maintenance Manual page 183

24. SERVICE PROCEDURE
If the rear face of the hole for the pin of point 0 is protruding to the
front from the rear face of the pin hole for adapter 0, do not try to
knock the pin in. There is something preventing point @ from
entering adapter @ fully, so remove the obstruction. When point @
enters adapter @ fully, knock in lock pin 0.
8. Insert lock pin @ in the hole of the point and hit it until its top
is the same level as the surface of point 0.
9. After replacing a bucket tooth, always check the following.
I) After the lock pin has been knocked in completely, check that
it is being secured by the point and surface.
2) Lightly hit lock pin @ in the reverse direction from which it
was hit in.
3) Lightly hit the tip of the point from above and below, and hit
its sides from right and left.
AE083250
4) Confirm that rubber pin lock @ and lock pin @ are set as
shown in the figure.
The life of the point can be lengthened and the frequency of its
replacement can be reduced by turning it upside down so that it will
wear evenly.
Replace the rubber pin and locking pin with new pins at the same
time as replacing the point to prevent the point from falling.
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