<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Steinway M Backcheck Problem</TITLE> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <STYLE type=text/css>BLOCKQUOTE { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } DL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } UL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } OL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } LI { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } </STYLE> <META content="MSHTML 6.00.6000.16608" name=GENERATOR></HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial>OK.......... back to the piano on Monday and check all of this out. </FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>This is one of the reasons I have a policy of bringing all pianos into the shop for action regulating or action rebuilding. IMHO it's the only way you can do the job 100%, 100% of the time! (In the meantime, I have my Baldwin SF-10 half strung waiting for me).</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Many thanks for all the input. I'll report back when as soon as I find the answer.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Al Guecia</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=fmurray@cruzio.com href="mailto:fmurray@cruzio.com">Fenton Murray</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, March 15, 2008 12:09 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Steinway M Backcheck Problem</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Also, check hammer tail length, I like to see a 1" tail.</FONT></DIV> <DIV><FONT face=Arial size=2>Fenton</FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=pianotech@a440piano.net href="mailto:pianotech@a440piano.net">William R. Monroe</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, March 14, 2008 6:05 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Steinway M Backcheck Problem</DIV> <DIV><BR></DIV> <DIV><FONT face="Bookman Old Style" size=2>Al,</FONT></DIV> <DIV><FONT face="Bookman Old Style" size=2></FONT> </DIV> <DIV><FONT face="Bookman Old Style" size=2>I was referring to the height of the backcheck in the key.</FONT></DIV> <DIV><FONT face="Bookman Old Style" size=2></FONT> </DIV> <DIV><FONT face="Bookman Old Style" size=2>NY Steinway calls for the check angle to be 68 degrees to the key, and there should be a 1/16" or about a 2mm gap, between the top of the backcheck and the tail of the hammer when the hammer is AT let-off.  That is, 2mm before the hammer drops.</FONT></DIV> <DIV><FONT face="Bookman Old Style" size=2></FONT> </DIV> <DIV><FONT face="Bookman Old Style" size=2>If these things are correct, I'd see if I can get some samples to check properly while I'm sitting at the piano, pulling the action, adjusting, checking, repeating, ad infinitum.  I don't recall if you tried to set samples in the piano and then duplicated that on the bench, or if you were just setting checking at the bench......??</FONT></DIV> <DIV><FONT face="Bookman Old Style" size=2>  </FONT></DIV> <DIV><FONT face="Bookman Old Style" size=2>William R. Monroe</FONT></DIV> <DIV><FONT face="Bookman Old Style" size=2></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Steinway M Backcheck Problem</DIV> <DIV><FONT face="Bookman Old Style" size=2></FONT><FONT face="Bookman Old Style" size=2></FONT><BR></DIV> <DIV><FONT face="Bookman Old Style" size=2>Have you double-checked (ha-ha) the backcheck height??</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>William, are you talking about the height of the backchecks in the key or the height that I'm setting them at to check? I have tried setting them higher and lower with not much improvement.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>SNIP</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Al Guecia</FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> </BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>