Handle Hydraulic Type Quick Coupler; Explanation Of Components On Machines With Quick Coupler - Komatsu H70051 Series Operation & Maintenance Manual

HANDLE HYDRAULIC TYPE QUICK COUPLER

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
Quick coupler attachment switch is used for coupling the attachment and the coupler or decoupling them when
installing or removing the attachment.
(When the 2-point switch)
The switch automatically returns to its original position when re-
leasing your hand from the switch.
Position (A): Decoupling
Pull the lock (a) in the direction shown by arrow (b) when
pressing the switch into this position.
6-14
k k
WARNING
ATTACHMENTS AND OPTIONS