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<DIV><FONT face=Arial>Terry,</FONT></DIV>
<DIV><FONT face=Arial>Does the problem go away when the soft pedal induces a
little more lost motion?</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></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=pianolover88@hotmail.com
href="mailto:pianolover88@hotmail.com">pianolover 88</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> Tuesday, March 18, 2008 3:42
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Yamaha jack question</DIV>
<DIV><BR></DIV>Customer owns a yamaha console, only about 11 years old with
minimal use. Got a call that some keys were sticking. Upon inspection I
confirmed quickly that the problem was *not* in the keys, but the jacks. Turns
out that many of the jacks (plastic) are having trouble resetting back under
the hammer butts for some reason. This happens whether the damper is depressed
or not, when repeating the same notes at a reasonable speed, but less than
trill. <BR><BR>A check of the action determined that the regulation is
correct, the centers are not tight, the hammer butt buckskin is not worn at
all, and the jack springs are not the problem. I also noted that the top of
the jacks have sufficient slickness/graphite. So what could be the source of
this problem? The backchecks are also properly regulated. Should I try
spraying McLube on the tops of the jack, then brushing on some powdered
teflon? Could it be that the jacks being plastic could be part of the problem?
<BR><BR>Terry Peterson<BR>
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