Komatsu PC138USLC Operation & Maintenance Manual page 356

ATTACHMENTS AND OPTIONS
Attachment Installation
1. Remove the bucket.
For details of the procedure for removing the bucket, see "BUCKET REPLACEMENT AND INVERSION (PAGE
3-170)".
2. Place the attachment in a horizontal position, then install to the
arm with pin (A) and then pin (B).
3. Turn the starting switch to the ON position (B), then set the lock
lever to the FREE position (F).
4. Within 15 seconds after stopping the engine, move each
control lever (for work equipment and travel) and attachment
control pedal (if equipped) to the full stroke in all directions to
release the internal pressure.
5. Set the lock lever to the LOCK position (L), then turn the
starting switch to the OFF position (A).
MACHINE READY FOR ATTACHMENT
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