Hyundai HL930A Operation & Maintenance Manual page 258

(2) REMOVE BUCKET FROM QUICK COUPLER
The attachment should be in a level position on the ground.
Release the lock pins by pressing the switch on monitor.
Lower the boom so that it disengages from the attachment.
Reverse away from the attachment.
(3) PRECAUTION OF USING QUICK COUPLER
When operating the machine with quick
coupler, confirm that the quick coupler
switch is in the lock position. Operating
the machine with the quick clamp
switch in the unlock position can cause
the bucket to drop off and bring about
accidents.
Serious injury or death can result from
this accident.
8-2
Quick coupler switch