Komatsu ecot3 Operation And Maintenance Manual page 299

MAINTENANCE PROCEDURE MAINTENANCE PROCEDURE
8. Fit tooth (1) to adapter (4), and confirm that when the pointer is
pressed strongly, the rear face of the hole for the pin of the
teeth (1) is at the same level as the rear face of the hole for the
pin of the adapter (4).
If the rear face of the pin hole of tooth (1) protrudes in front of
the rear face of the pin hole of adapter (4), do not knock the pin
in.
If this happens, there is something (C) preventing the tooth (1)
from fitting completely in adapter (4), locate the problem and
remove the obstruction. When tooth (1) fits completely in
adapter (4), knock in lock pin (2).
9. Insert lock pin (2) in the pin hole in the tooth (1), and knock it in
so that the top surface of lock pin (2) is the same height as the
surface of tooth (1).
10. After replacing a bucket tooth, always check the following.
1) After the lock pin (2) has been knocked in completely,
check that it is secured by the teeth (1) and surface.
2) Lightly hit lock pin (2) in the reverse direction from which it
was hit in.
3) Lightly hit the tip of the teeth (1) from above and below, and
hit its sides from right and left.
4) Confirm that rubber pin lock (3) and lock pin (2) are set as
shown in the figure.
REMARK
If the tooth is turned, the wear will become uniform. This will extend the service life of the tooth and reduce the
frequency of replacement.
When replacing the tooth, replace the rubber pin lock and lock pin with new parts at the same time. This will prevent
the tooth from falling out.
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MAINTENANCE MAINTENANCE