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ATTACHMENTS AND OPTIONS
3.
Operate each work equipment control lever and attach-
ment control pedal fully to the front, rear, right, and left a
few times within 15 seconds to release the internal pres-
sure in the hydraulic circuit.
4.
Loosen oil filler cap (F) slowly on the top of the hydraulic
tank to release the internal pressure in the hydraulic tank.
5.
Check that the hydraulic oil temperature is low.
6.
After checking that the oil temperature is low, set the rotor
of the stop valve installed to the inlet port on the side face
of the arm and the outlet port piping to LOCK position (b).
(a) FREE: Hydraulic oil flows (direction of arrow is parallel
to longitudinal direction of arm)
(b) LOCK: Hydraulic oil does not flow (direction of arrow is
at right angle to longitudinal direction of arm)
•
When setting FREE or LOCK position of the stop
valve, remove bolt (1), and washer (2) fit lever (3) and
refit bolt (1) and washer (2) rotate valve to furthest po-
sition clockwise or anti-clockwise. After setting, re-
move lever (3) and refit bolt (1) and washer (2).
7.
Remove the hoses on the attachment side. Install the plate
(4) 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.
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
6-45
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