First thing is if you have the handle with the knob it is the same handle. Next question: Does it snap &quot;over - center&quot;? If not do you have it too tight. If you do split it again adjust the clutch so you have the proper amount of snap while everything is in front of you and before you slide it back together. Also if new fiber disks are installed, the rough edge will wear off and you will need to readjust.. Look under there and make sure the set screw did not come loose. Later: John