Komatsu PC138US-11 Operation & Maintenance Manual page 423

ATTACHMENTS AND OPTIONS
12. Remove the hoses on the attachment side. Install the
plugs to outlets (2 places).
The plugs are used to prevent the attachment from making
incorrect operation caused by mixing in of foreign matter.
After the plugs are correctly installed, store the attach-
ment.
13. Pull out the mounting pins (2 places), remove the attach-
ment, then install the bucket.
For the installation procedure of the bucket, see "METHOD
FOR REPLACING AND INVERTING BUCKET (3-189)".
After installing the bucket, check the oil level in the hydraulic tank.
METHOD FOR INSTALLING ATTACHMENT
1.
Remove the bucket.
For the removal procedure of the bucket, see "METHOD FOR REPLACING AND INVERTING BUCKET
(3-189)".
2.
Place the attachment on a horizontal place, install pin (a)
and then pin (b) in this order to the arm.
3.
Lower the attachment to the ground and stop the engine.
4.
Turn the starting switch to ON position (B).
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
WENAM00111
6-23