<html> Dave, You should first try to ream and repin, as loose action centers can usually be solved with large center pins.  If they have been loose for a long time and the bushings are damaged, then you may have to rebush at least some of them. To rebush, just use your normal procedure but use PVC-E glue. Don Mannino RPT, Kawai America At 07:58 AM 6/11/2003 -0500, you wrote: <blockquote type=cite class=cite cite>Hi, I have a Kawai KL-703, serial number 1150442, which has a problem with loose jack pinning, to the point that it is difficult to regulate lost motion and they can wobble sideways enough to hit the neighbor hammer. Anyone have any experience rebushing plastic parts or am I better off replacing the whippens? Also, a minor thing, is there any source for the hinges that attach the top of the music desk to the front panel? Kawai parts does not have them and dont know when and if they will. _______________________________________________ pianotech list info: <a href="https://www.moypiano.com/resources/#archives" eudora="autourl">https://www.moypiano.com/resources/#archives</a></blockquote></html>