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<DIV><FONT face=Arial>I'm happy to see that there is another "old timer" on this
list who uses the term "rolling the flies". I'm not alone.....I'm not
alone....</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Al Guecia</FONT></DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A
title="mailto:dporritt@mail.smu.edu CTRL + Click to follow link"
href="mailto:dporritt@mail.smu.edu">Porritt, David</A> </DIV>
<DIV><B>Sent:</B> Sunday, August 17, 2008 6:52 PM</DIV>
<DIV><B>To:</B> <A
title="mailto:pianotech@ptg.org CTRL + Click to follow link"
href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV>
<DIV><B>Subject:</B> RE: Grand Jacks</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN style="COLOR: #215868">Repetition lever set too
low. What you did was the way to check the repetition lever height.
Old timers call that “rolling the flies”. If you trip the jack and you
just <I>barely</I> feel the top of the jack scrape the knuckle but it does
return fully on its own, the rep height is correct. The tightness of the
jack bushings is another matter. They should be pretty
free.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #215868"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #215868">dp<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #215868"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #215868; FONT-FAMILY: Consolas"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #215868; FONT-FAMILY: Consolas">David M.
Porritt, RPT<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #215868; FONT-FAMILY: Consolas"><A
href="mailto:dporritt@smu.edu"><SPAN
style="COLOR: blue">dporritt@smu.edu</SPAN></A><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN style="COLOR: #215868"><o:p> </o:p></SPAN></P>
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<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">
pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <B>On Behalf Of
</B>Matthew Todd<BR><B>Sent:</B> Sunday, August 17, 2008 5:41 PM<BR><B>To:</B>
pianotech@ptg.org<BR><B>Subject:</B> Grand Jacks<o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P class=MsoNormal>I have been observing a grand action, and I was curious about
something (is that a surprise??)<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>A) I went and tripped each jack toe and I noticed that
some of them when I tripped the jack toe down, and then released it, the toe
immediately went back up. B) On others, I tripped the jack toe, and
when I released it, the toe went up, but not fully, and I would gently push the
toe and would feel the "click" of the toe returning to it's position.
C) And yet, on a few others, when I pushed down the jack toe, and then
released it, the toe would stay down (assuming a tight flange
here).<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>What should be the consistency with each note? I'm
assuming, after I trip the jack toe and release it, the jack should return fully
to where it began. What other problems can there be besides tight
flanges to have the jack not return fully?<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>Thanks,<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>Matthew<o:p></o:p></P></DIV></DIV></BODY></HTML>