Komatsu H75051 Operation & Maintenance Manual page 344

MAINTENANCE PROCEDURE
4.
Fit the round bar which is slightly thinner than the pin (2),
and hit the round bar with the hammer to drive out the pin
(2).
5.
Remove the tooth (1).
REMARK
If it cannot be removed by this method, for safety, ask your
Komatsu distributor to have the replacement performed.
6.
Clean the bucket adapter (3) thoroughly.
7.
Install a new bucket tooth to the bucket adapter (3).
8.
Insert the pin (2) into the bucket tooth, and hit it with the
hammer.
9.
If the mounting bolts (4) and (5) of the bucket adapter (3)
are loose, retighten them.
Tightening torque of mounting bolt
(4) : 1200 to 1330 Nm {122 to 136 kgm}
(5) : 814 to 912 Nm {83 to 93 kgm}
10. After operating several hours, check that the pin does not
come out.
METHOD FOR REPLACING KMAX TEETH
(if equipped)
Replace the tooth before the wear reaches to the adapter.
Items to be prepared
Socket wrench with 11 mm of width across flats and torque wrench
REMARK
The wear will become uniform by rotating the mounting position of the tooth. This will extend the service life of
the tooth and reduce the frequency of replacement.
1.
Raise the bucket to a suitable height, then put a block (A)
under the bucket to prevent the bucket from lowering.
Set the bottom of bucket to be level, and put a block under
the bucket at the center.
2.
Lower the bucket on the block and stabilized it.
3.
Stop the engine.
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MAINTENANCE