modification on the quick coupler of Liebherr A920/R922 model
Why is it necessary? .On this particular model the attachments are fixed by two small plastic nipples on both sides of the qc.When You change the attachments more often these will wear out and the attachments won´t hold on the qc anymore. The modification makes it easier to exchange the attachments,reduces the wear out level of the qc and prevents the attachments from getting damaged when you pull them off the qc.
How to The modification can easily be done in a few minutes and does not require special skills.All you need is a 1,5mm metal drill.
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