Komatsu ecot3 Operation And Maintenance Manual page 373

MACHINE READY FOR ATTACHMENT MACHINE READY FOR ATTACHMENT
6. After checking that the hydraulic oil temperature has gone
down, set the rotor of the stop valve (installed to the piping for
the outlet port and inlet port on the side face of the arm) to
LOCK position (b).
(a) FREE: Hydraulic oil flows (direction of arrow is parallel to
long direction of arm)
(b) LOCK: Hydraulic oil does not flow (direction of arrow is at
right angles to long direction of arm)
When setting the FREE or LOCK position of the stop valve
rotor, remove bolt (2), turn over plate (1), then turn the rotor.
After setting, install plate (1) again with bolt (2).
7. Remove the hoses on the attachment side. Install the plugs to
the 2 outlets.
The plugs are used to prevent the attachment from incorrect
operation caused by mixing in of foreign matter. After the plugs
are correctly installed, store the attachment.
8. Pull out the mounting pins (2 places), remove the attachment,
then install the bucket.
For details of the procedure for installing the bucket, see
"BUCKET REPLACEMENT
3-169)".
9. After installing the bucket, check the oil level in the hydraulic
tank.
6 - 16
AND INVERSION (PAGE
ATTACHMENTS AND OPTIONS ATTACHMENTS AND OPTIONS