Originally Posted by
loubikes
When I tighten it (righty-tighty) it eventually gets to a point where it is so tight that I cannot turn it anymore, however the bike can still freely spin. It's as if there should be some kind of heavy rubber grommet between #9 and #11, instead of simply a washer.
This arm functions similarly to a QR-skewer on the wheels. It has a lever that pulls on the rod AND a rotating adjustment.
1. First, find the direction the lever moves to loosen and tighten the clamp.
2. place the clamp-lever in the OPEN position so that the clamp's jaws are wider
3. tighten the clamp handle assembly and you should see the clamp's jaws slowly close
4. flip the clamp-lever into the CLOSE position and this should be the final movement that holds the frame.
Go back to #2 and repeat #3 as needed so the clamp holds the bike in place. Personally, I like to position my bike so that it's balanced in the jaws of the clamp and doesn't need to be clamped too tightly.