<!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 6.00.2800.1458" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>William,</FONT></DIV> <DIV><FONT face=Arial size=2>Try weakening the spring until the note = misfires ( too little tension ) and then just tweek back stronger. Also place the = action back and look at the rise of the hammer in the piano. Sometimes a = different view helps judging the amount or speed of the hammer movement.</FONT></DIV> <DIV>Joe Goss RPT<BR>Mother Goose Tools<BR><A href="mailto:imatunr@srvinet.com">imatunr@srvinet.com</A><BR><A href="http://www.mothergoosetools.com">www.mothergoosetools.com</A></DI= V> <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=joegarrett@earthlink.net = href="mailto:joegarrett@earthlink.net">Joe Garrett</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, November 09, = 2004 10:35 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: About = Checking</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>William asked: "<FONT face="Times = New Roman" size=3>Also tried varying the backcheck height, which showed no noticeable<BR>improvement with either higher or lower = backchecks.  Also tried changing the<BR>backcheck angle - again no improvement one way = or the other, hammers simply<BR>will not check on soft blows."<BR><BR>Lost in = Wisconsin:<BR>William R. Monroe<BR>Madison, WI</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3></FONT></FONT> </DIV> <DIV><FONT face=Arial size=2><FONT face="Times New Roman" size=3>William,</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT face="Times New Roman" = size=3>If you've tried all of that, then it has to be something you didn't = try.<G> Have you checked to see if the keyframe is bedded properly? I've known that = to mess up checking.</FONT></FONT></DIV> <DIV><FONT face=Arial size=2><FONT face="Times New Roman" = size=3>Best Regards,</FONT></DIV> <DIV><BR></DIV></FONT> <DIV><FONT face=Arial size=2>Joe Garrett, R.P.T.<BR>Captain, Tool Police<BR>Squares R I</FONT></DIV></BLOCKQUOTE></BODY></HTML>