<HTML style="FONT-SIZE: x-small; FONT-FAMILY: MS Sans Serif"><HEAD><TITLE>Noisy Action troubleshooting</TITLE> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.2523" name=GENERATOR></HEAD> <BODY> <DIV>Hi, Brad.  Remember me?  I was in Chicago for the Nordiska seminar a few months back.</DIV> <DIV>Anyway, a few thoughts... Howz the knuckles?  Little hard, maybe?  The jack cushion felt is also part of the problem, but what to do about it?  I've replaced them on a Bergmann (Y.C) with upright jack butt felt, but it remains to be seen how much they crush over time (and lose regulation).  Nordiskas seem to be noisy overall, so I'm not surprised that your dealer is complaining.  Good luck.</DIV> <DIV> </DIV> <DIV>Paul McCloud</DIV> <DIV>San Diego</DIV> <DIV> </DIV> <DIV></DIV> <DIV> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid"> <DIV style="FONT: 10pt Arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=staff@smithpiano.com href="mailto:staff@smithpiano.com">staff</A> </DIV> <DIV style="FONT: 10pt arial"><B>To: </B><A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A></DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> 12/05/2004 12:25:52 AM </DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Noisy Action troubleshooting</DIV> <DIV><BR></DIV><FONT size=2> <P><FONT face="Trebuchet MS" size=2>Hi All, </FONT><BR><FONT face="Trebuchet MS" size=2>This week I will be diagnosing a new, very noisy, Nordiska grand action for a concerned dealer. </FONT><BR><FONT face="Trebuchet MS" size=2>Nordiska is Chinese manufactured as you probably know. </FONT><BR><FONT face="Trebuchet MS" size=2>Excessive action noise, present thru whole action, but worse on some keys/sections</FONT> <BR><FONT face="Trebuchet MS" size=2>Key bushings are very loose, both balance and front rails. </FONT><BR><FONT face="Trebuchet MS" size=2>Seems they've used a very thin bushing cloth that doesn't match the combination of skinny balance rail pin and key mortise. </FONT></P> <P><FONT face="Trebuchet MS" size=2>The dealer has seen some improvement thru repinning wippen flanges in previous actions.</FONT> <BR><FONT face="Trebuchet MS" size=2>On this particular action, seems like flopping keys is the main culprit. </FONT><BR><FONT face="Trebuchet MS" size=2>We're going to regulate, rebush  and glue size balance rail holes on a few keys to hear results. </FONT></P> <P><FONT face="Trebuchet MS" size=2>Any thoughts? </FONT></P> <P><FONT face="Trebuchet MS" size=2>I'm also suspicious of: </FONT></P> <P><FONT face="Trebuchet MS" size=2>Rep lever adj screw felt; creating noise when rep lever cycles and returns to rest quickly, sort of a click sound</FONT> <BR><FONT face="Trebuchet MS" size=2>Rep lever buckskin contacting bottom of drop screw; another possible click</FONT> <BR><FONT face="Trebuchet MS" size=2>Hammer rest cushion material used is really keybed felt, too hard/dense IMO; hammers bouncing on this material & rail system produce an audible "thump tone". </FONT></P> <P><FONT face="Trebuchet MS" size=2>Also found a few loose backchecks.</FONT> </P><BR> <P><FONT face="Trebuchet MS" size=2>Best regards,<BR><BR>Brad Smith, RPT<BR>Smith Piano Services<BR>483 Donald Street<BR>Bedford, NH 03110</FONT> </P> <P><FONT face="Trebuchet MS" size=2>800-964-TUNE (8863) </FONT><BR><FONT face="Trebuchet MS" size=2>603-625-4696<BR></FONT><A href="mailto:brad@smithpiano.com"><U><FONT face="Trebuchet MS" color=#0000ff size=2>brad@smithpiano.com</FONT></U></A> <BR><A href="http://www.smithpiano.com"><U><FONT face="Trebuchet MS" color=#0000ff size=2>www.smithpiano.com</FONT></U></A> <BR><A href="http://www.smithpiano.com/schedule.htm"><U><FONT face="Trebuchet MS" color=#0000ff size=2>NEW!! 24/7 Online Appointment Scheduling</FONT></U></A><BR></P></FONT></BLOCKQUOTE></BODY></HTML>