<!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 6.00.2800.1607" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Whip assist springs? I've not encountered those on an upright.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>swj</FONT></DIV> <DIV><FONT face=Arial 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">----- 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 22, 2008 3:06 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Yamaha Jack issue</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Oh yea, Yamaha's from the 60's and early 70's had this problem. </FONT></DIV> <DIV><FONT face=Arial size=2>Regarding the non returning jack in an upright with all regulation and friction proper in the action, do not forget the key. It must not have excess friction and must be balanced correctly. Also check hyper active whip assist springs.</FONT></DIV> <DIV><FONT face=Arial size=2>Fenton</FONT></DIV></BLOCKQUOTE></BODY></HTML>