<!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>Damper lever spring way too tight = causing the wippen to want to rotate and keep the jack tucked under the hammer butt??</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>If I'm way off base, feel free to = enlighten me.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I actually like to have customers watch = my diagnostic work.  It gives me an excuse to use one of my better = diagnostic methods: talking to myself.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Mark Ultsch</FONT></DIV> <DIV><FONT face=Arial size=2>Madison</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=pdtek@mchsi.com href="mailto:pdtek@mchsi.com">Dave = Bunch</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> Thursday, November 03, = 2005 6:54 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Blubber Pluzzler</DIV> <DIV><BR></DIV> <DIV>Hello-</DIV> <DIV> </DIV> <DIV>Blubbering (double striking) hammers in a vertical are not = all that uncommon, but today I found a cause that I don't remember seeing = before.</DIV> <DIV> </DIV> <DIV>It was a new Baldwin Hamilton studio sized piano. The customer = was complaining that several notes in the low tenor area were not = sustaining. When I got there I found that these few notes were double striking and = sounding like they were blocking when played lightly. Actually anything up to a = light/moderate keystroke.</DIV> <DIV> </DIV> <DIV>I checked the position of the let off rail and regulation in = general. So far things looked fine. Moving the key down slowly produced let off at = about 1/8" and there was sufficient key dip for plenty of after touch. Back = checking was fine. I went to the worst one and to satisfy my curiosity, cranked = the button down to where let off was about 1/2". This changed nothing. The = hammer was still bouncing off the top of the jack. Only on a very firm stroke = would everything cycle through as it should. Most of the piano was just = fine. It was these few notes.</DIV> <DIV> </DIV> <DIV>Well, it only took about five minutes to figure it out, but it = was a long five minutes with the customer watching. Anyone want to guess on this one?</DIV> <DIV> </DIV> <DIV>Dave Bunch</DIV></BLOCKQUOTE></BODY></HTML>