Komatsu H75051 Operation & Maintenance Manual page 406

HANDLE HYDRAULIC TYPE QUICK COUPLER
2.
Pull lock (A) of the quick coupler switch in the direction of
the arrow (b), and push in to RELEASE position (a).
• Keep the quick coupler attachment switch pressed un-
til the work of the step 8 is completed.
• When you release the quick coupler, the quick coupler
lock release pilot lamp (1) lights up, and the alarm
buzzer sounds intermittently.
3.
Operate the lever from "HOLD" position (B) to "TILT" posi-
tion (e) while the quick coupler attachment switch is press-
ed into (a). Retract the coupler plunger while keeping it at
"TILT" position (e) from the state that the coupler contacts
to the tilt-end stopper.
4.
Check that the lock pins have been removed. The lock pin
indicators (3) may not be visible.
5.
Operate the lever from "HOLD" position (B) to "DUMP" po-
sition (f), and set the coupler tilted forward.
6-6
ATTACHMENTS AND OPTIONS
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