I've come across this problem as well, (typical university situation). The type of which you mention seems to be very difficult if not impossible to reverse once it has gone bad. I'm sure there must be a way but in my experience this typically happens about the same time as they start looking shabby anyway. One possible solution: Find a medium height that would be comfortable to most users. Next bolt the top permanently into that position. The bench will no longer be adjustable but it will be functional, greatly extending it's useful life. Rob Goodale, RPT Las Vegas, NV PNOTNR@AOL.COM wrote: > List, > > I've got three artist benches from a school where I work that rock like > mechanical bulls if the pianist really gets going! One is a Jansen bench > with the scissors mechanism, and that company is sending me a set of bushings > for replacement which they tell me will make the bench like new. > > Jansen also told me that the other benches I have can't really be fixed I > don't know what brand they are, and I'm having a bit of a tough time coming > up with a good way to describe the mechanism. It has the single arm running > parallel and underneath the threaded rod. But I notice that the pivot points > do not appear to have any means for tightening. They are like an all metal > action center! Even after tightening every bolt, screw and allen screw, > there doesn't seem to be any improvement. > > Granted these things get a LOT of use, but the school is not going to like > the idea of having to replace them, so can anyone suggest a method for > solidifying these benches? Thanks. > > Gordon Large, RPT > Mt. Vernon, ME
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