Handle Hydraulic Type Quick Coupler; Explanation Of Components On Machines With Quick Coupler - Komatsu H75051 Operation & Maintenance Manual

ATTACHMENTS AND OPTIONS

HANDLE HYDRAULIC TYPE QUICK COUPLER

Before operating the machine, check that the attachment is correctly connected. If it is not correctly in-
stalled, the attachment may fall off and cause serious injury.
• Check that the quick coupler switch is not in the unlock position, the quick coupler lock release pi-
lot lamp does not light up and the alarm buzzer does not sound intermittently.
• Check that the lock pin indicators on left and right side are visible moved out.

EXPLANATION OF COMPONENTS ON MACHINES WITH QUICK COUPLER

(1) Quick coupler attachment switch
(2) Quick coupler lock release pilot lamp
QUICK COUPLER ATTACHMENT SWITCH
Use the quick coupler switch to install or remove the attach-
ment.
Position (a): Release
Push the switch in to the position (a), then pull lock (A) in the
direction of the arrow (b) and release the connection.
While the quick coupler switch is pushed, the quick coupler
lock release pilot lamp (1) lights up and the alarm buzzer
sounds intermittently. And it is possible to unlock the attach-
ment.
If you release your hand from the switch, it automatically re-
turns to its original position. And it is possible to lock the attach-
ment.
HANDLE HYDRAULIC TYPE QUICK COUPLER
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WARNING
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