Replies

1. 
   jako17 | Jul 17, 2004 02:26pm | #1

   Try  filing a slight flat for the grub screw to bite on and use threadlocker from an automotive supply I suggest you ask for the non permanent to allow dismantling in future

2. 
   jackiechan | Jul 18, 2004 07:46am | #2

   Tele'

   It is possible that the connecting chain is incorrectly tensioned, or that the non-slipping handle/sprocket is binding in some way.  If either is the case, remove the front cover and check the tension of the chain. 

   The chain must be balanced in order to work properly.  With the cover off, loosen both set screws.  Next, pinch the chain in the middle of the loop so that the upper and lower meet.  While still pinching the chain, tighten each of the set screws.  If the chain is not balanced, it can force the chain to jump the sprockets - This is most likely what is occurring when your vice slips.  Be sure to install the chain roller to keep it from sagging and rattling off the inside of the front cover.

   If you have any questions, please feel free to ask!

   Dan Kornfeld, Owner/President - Odyssey Wood Design, Inc.

3. 
   UncleDunc | Jul 18, 2004 05:30pm | #3

   I endorse the machined flat for the setscrew to land on. It makes a much higher hill for the end of the screw to climb to let the hub rotate on the shaft. However, it only works if you know the hub is always going to be in the same rotational position on the shaft. If not, another possibility is to drill and tap a second setscrew hole at 90 degrees to the first one.

   Loctite is good if the problem is the screw loosening. If the hub is slipping on the shaft without the screw loosening, as evidenced by the screw scoring the shaft, consider putting a lead or copper slug between the setscrew and the shaft. That way, the slug will deform and spread the clamping force over a larger area of the shaft and the end of the screw. And, as a bonus, keep the shaft from getting torn up.