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HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
METHOD FOR CHANGE-OVER AND CONNECT HYDRAULIC CIRCUIT FOR
MACHINE READY FOR INSTALLATION OF ATTACHMENT
NOTICE
When a breaker is installed, the oil in the return circuit must return directly to the return filter. Do not
use it in the working mode other than B mode.
The standard set pressure for the safety valve of service valve may need adjustment depending on the
attachment. For adjustment, ask your Komatsu distributor.
When the attachment control is installed to machine, select the attachment mode of which the setting
pressure is applicable for the attachment, or the breaker mode.
If the attachment mode of which the setting pressure is applicable for the attachment is not available on
the machine monitor, consult your Komatsu distributor for the pressure setting.
METHOD FOR CONNECTING HYDRAULIC CIRCUIT
When installing the attachment, connect the hydraulic circuit as follows.
1.
Check that the stop valve is located at LOCK position (b).
(a) FREE
Hydraulic oil flows. (direction of arrow is parallel to longitu-
dinal direction of arm)
(b) LOCK
Hydraulic oil stops. (direction of arrow is perpendicular to
longitudinal direction of arm)
Follow the procedure below for setting the stop valve to
LOCK position (b).
1)
Remove the bolt (1) and washer (2).
2)
Attach the lever (3).
3)
Turn the lever (3) to rotate the valve to LOCK position
(b) at the clockwise end or the counterclockwise end.
4)
Remove the lever (3).
5)
Install the bolt (1) and washer (2) again.
2.
Remove the plate (4) at the tip of the stop valve piping. (2
places on the right and left)
Be careful not to lose or damage the removed parts.
3.
Connect the attachment piping (5) provided by the attach-
ment manufacturer to the part from where the plate (4) is
removed.
REMARK
Method of connection varies depending on the attachment
manufacturer because size of the fitting, added accumula-
tor, etc. are different. Consult your Komatsu distributor.
6-14
ATTACHMENTS AND OPTIONS
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