<html xmlns:v="urn:schemas-microsoft-com:vml" = xmlns:o="urn:schemas-microsoft-com:office:office" = xmlns:w="urn:schemas-microsoft-com:office:word" = xmlns:st1="urn:schemas-microsoft-com:office:smarttags" = xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; = charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" = name="State"/> <o:SmartTagType = namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/> <o:SmartTagType = namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> Thanks, = Jerry<o:p></o:p> I lifted all the damper levers, = sometimes in groups, but didn’t detect any noise.  I didn’t have = a stick long enough to get the levers up so I could check the tray alone.  = Your solution may be what I need to look for.<o:p></o:p> <o:p> </o:p> Paul C<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Jerry Cohen Sent: Wednesday, = September 14, 2005 6:20 PM To: 'Pianotech' Subject: RE: Squeeky = damper tray<o:p></o:p> </div> <o:p> </o:p> Paul,<o:p></o:p>  <o:p></o:p> I had a similar problem with a 4 = year old Schimmel grand. If you lift the damper tray by hand you hear the squeak. = If you lift individual underlevers (either by hand or with the keys)) there is = no squeak. But the problem was not with the damper tray mechanism. I lifted = each underlever  and operated the pedal. Finally I found one damper when = lifted out of the way, the squeak was gone. But if you lift that damper by hand = there was no squeak. However  you could hear a very slight rubbing sound = from the bushing, which its neighbors did not have. You had to listen = incredibly carefully. I polished the damper wire with Flitz and applied McLube to = the wire. The squeak was gone.<o:p></o:p>  <o:p></o:p> I guess there was a resonance = created only when the underlever is lifted at is capstan, and the resonance was = damped when the underlever is lifted at the spoon.<o:p></o:p>  <o:p></o:p> I think the Young Chang has a = similar system with capstans for damper tray lift and spoons for key lift. I don’t know if this is your problem, but it’s worth checking = before dismantling the damper tray mechanism. <o:p></o:p>  <o:p></o:p> Jerry Cohen, = RPT<o:p></o:p> <st1:State w:st="on"><st1:place w:st="on">New Jersey</st1:place></st1:State> Chapter<o:p></o:p>  <o:p></o:p> -----Original = Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Paul Chick (Earthlink) Sent: Wednesday, = September 14, 2005 6:02 PM To: <st1:PersonName = w:st="on">Pianotech@Ptg.Org</st1:PersonName> Subject: Squeeky damper = tray<o:p></o:p>  <o:p></o:p> List = Members:<o:p></o:p>  <o:p></o= :p> A Young Chang G175 has a = squeak in the damper tray.  All the moving parts of the sustain feature in = the piano were eliminated until the tray.  Before disassembly, I thought = I’d seek the wisdom of the list to learn if anyone has encountered this = problem, and what was done to solve it.  It sure sounds like the groaning = squeak you hear from tight cloth bushings against a metal = pin.<o:p></o:p>  <o:p></o= :p> Paul = C<o:p></o:p> </div> </body> </html>