Instructional Videos

I-Lock Coupler engage/disengage for models PC78 and above

Komatsu excavators from model PC78 up utilise a single lock-out switch and joystick-mounted button to activate the I-Lock coupler.

The lock-out switch activates the system, and then pressing the joystick button and building hydraulic pressure retracts both the Safety Knuckle and the Locking Wedge. The Timer Function also begins with the joystick button press. The Safety Knuckle will drop automatically after the timer function expires (12 seconds), but the Locking Wedge will remain up as long as the joystick button is depressed.

Watch the video carefully for instructions on how to DETACH the coupler from an attachment and ATTACH to the next one.

Below are downloads for the OPERATION MANUAL and the SAFETY DECAL.


I-Lock Coupler engage/disengage for models PC55 and below

Komatsu mini excavators up to model PC55 utilise a single lock-out switch to activate the I-Lock coupler.

The lock-out switch activates the system and building hydraulic pressure retracts both the Safety Knuckle and the Locking Wedge. The Timer Function also begins with the lock-out switch. The Safety Knuckle will drop automatically after the timer function expires (12 seconds) ready to engage the next attachment.

Watch the video carefully for instructions on how to DETACH the coupler from an attachment and ATTACH to the next one.

Below are downloads for the OPERATION MANUAL and the SAFETY DECAL.