<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2716.2200" name=GENERATOR></HEAD> <BODY style="FONT-FAMILY: Times New Roman" text=#000000 bgColor=#ffffff> <DIV>OK all you engineer types.  I was repining some hammer flanges today on a Steinway that has been in a practice room.  Action parts are Renner.  It gets hard play 14+ hours a day.  The action was rebuilt 4 years ago.  Nearly all of the bushings were quite tight -- most 1 or 2 swings.  A few had 3 swings and I was pinning for 4 so since the action had been in the shop (idle) for a couple of weeks, I thought maybe I could just vigorously work the shank a few seconds and it would swing 4.  I'd hold the flange and make the hammer swing back and forth fairly forcefully for 5 or 6 seconds and then test it again.  In each case the ones that previously would give 3 good swings, now only gave 1.  The hammer dropped from horizontal to vertical and stopped dead.  </DIV> <DIV> </DIV> <DIV>What made the bushings get tighter by simply working the flange?  I'm stumped!</DIV> <DIV> </DIV> <DIV>dave</DIV></BODY></HTML> <PRE> _____________________________ David M. Porritt dporritt@mail.smu.edu Meadows School of the Arts Southern Methodist University Dallas, TX 75275 _____________________________</PRE>