Komatsu PC118MR-8 Operation And Maintenance Manual page 409

OPTIONAL EQUIPMENT
To connect another bucket or accessory
1. Place the quick coupling on the bucket or accessory.
2. Press the switch (1).
NOTICE
The switch has a safety mechanism which prevents accidental activation. Slide the stop near itself and
then press the switch. The switch light turns on and the buzzer beeps.
3. With the switch (1) in 'B' position, press and hold button (2) of the left lever to activate the quick coupling.
4. According to the type of quick coupling, one of the machine hydraulic functions can be activated (bucket,
boom, arm or rotation) to increase the hydraulic system pressure.The quick coupling will go to the "unlock"
position.
5. Moving the bucket cylinder and the booms, position the quick coupling on the corresponding part of the bucket
or accessory. Follow the instructions of the quick coupling manufacturer.
6. Release the button (2). The quick coupling will be locked on the bucket/accessory; if necessary, activate one
of the machine control lever to increase the system pressure.
Take the switch (1) to "B" position (OFF). The light turns off and the buzzer stops.
WEAM014802
HYDRAULIC QUICK COUPLER
6-19