Anyone know how the internals of a Park Tool clamp work (PCS-9)? Knocked it over
and afterwards it wouldn’t clamp – the grip on the t-handle side was moving freely. Found an E-clip on the ground and put that on the screw on outside of the grip on the t-handle side and it worked, but worried I’ve set it up wrong or
I’m missing a second E-clip. Anyone know how the internals work? Can’t find a manual online for that bit!

http://www.parktool.com/product/home-mechanic-repair-stand-pcs-9

Click “Documentation” on the left.

Thanks – saw that, but it doesn’t show how the clamp assembly goes together (parts 1, 3, 4, and 5). Doesn’t look like I’m missing an E-clamp, just not sure I’ve put it back correctly!