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<DIV><FONT face=Arial size=2>Rep lever height and spring strength(or lack of) ,
jack to knuckle orientation, knuckle condition, jack and rep lever
surfaces , tight action centers ,and maybe a few more reasons.</FONT></DIV>
<DIV><FONT face=Arial size=2> READ----- REGULATION
! </FONT></DIV>
<DIV><FONT face=Arial size=2>Check your Randy Potter literature.I bet he has a
whole chapter or more on grand action prep and adjustment.</FONT></DIV>
<DIV><FONT face=Arial size=2>Tom Driscoll RPT</FONT></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=toddpianoworks@att.net href="mailto:toddpianoworks@att.net">Matthew
Todd</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> Sunday, August 17, 2008 6:40
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Grand Jacks</DIV>
<DIV><BR></DIV>
<DIV>I have been observing a grand action, and I was curious about something
(is that a surprise??)</DIV>
<DIV> </DIV>
<DIV>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).</DIV>
<DIV> </DIV>
<DIV>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?</DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV>Matthew</DIV><PRE>No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.138 / Virus Database: 270.6.4/1617 - Release Date: 8/17/2008 12:58 PM
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