Komatsu WA380-8, Operation & Maintenance Manual

Page: 281 / 432

REMARK
When setting RAISE detent, if the boom is very close to the position specified by the positioner (approximately
within 2 °), the boom control lever does not set to the detent position.
METHOD FOR RELEASING LOWER REMOTE BOOM POSITIONER
1.
Set the boom between the horizontal level and approxi-
mately 30 cm or more above the ground.
2.
Set the boom control lever to HOLD position and hold down position (a) of switch (1) for more than 1 sec-
ond.
A “beep” sounds and the stop position is reset.
If the boom control lever is set to FLOAT position while the stop position is reset, the boom is set to the float
mode and moved freely by the external force applied.
REMARK
• When the boom is above the horizontal level, the
boom RAISE stop position setting and its reset opera-
tion can be made. And when the boom is below the
horizontal level, the boom LOWER stop position set-
ting and its reset operation can be made.
• When the remote positioner is effective, the pilot lamp
lights up in the monitor.
(A): When only RAISE is effective
(B): When only LOWER is effective
(C): When both RAISE and LOWER are effective
OPERATION MACHINE OPERATIONS AND CONTROLS
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