Originally Posted by
Exok
This problem is often caused by binding in the IBT or lack of drive to the IBT.
First, check for excess grease on the drive coupler on the IBT and the drive coupler on the machine frame side. Clean all excess grease. Also check to make sure the drive moves back and forth on the shaft. The spring may have weakened and needs to be stretched.
Before replacing the IBT, order and install the IBT Spacer Fix, part # 655N00508. Remove the screw securing the IBT cleaner assembly and install the spacer and longer screw in it's place. This will keep the IBT fully engaged with the drive.
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