Komatsu PC30MR-5 Operation & Maintenance Manual page 339

ATTACHMENTS AND OPTIONS
2.
Operate switch (1), and with switch (1) in position "a" press
and hold button (2) on the left hand lever, to activate quick
coupler.
NOTICE
The switch has a safety lock mechanism to prevent ac-
cidental operation. Slide the lock towards you then
rock the switch. The lamp on the switch will come on
and a warning buzzer will sound.
3.
Position the quick coupler in the mating portion of the
bucket or attachment, moving the bucket cylinder, arm and
boom as necessary.
Follow the quick coupler manufacturer's instructions.
4.
Release button (2).
5.
Return switch (1) to position "b" (OFF).
The lamp will go off and the buzzer stop.
WENAM00150
QUICK COUPLER SYSTEM
RKA48360
RKA45970
6-7