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<DIV><FONT face=Arial>Is the bushing felt graphited?</FONT></DIV>
<DIV><FONT face=Arial>The action movement heated it up, increasing the =
friction.</FONT></DIV>
<DIV><FONT face=Arial>Regards,</FONT></DIV>
<DIV>John M. Ross<BR>Windsor, Nova Scotia.<BR><A
href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</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=dm.porritt@verizon.net =
href="mailto:dm.porritt@verizon.net">David M.
Porritt</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> ; <A =
title=caut@ptg.org
href="mailto:caut@ptg.org">caut@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, June 14, 2002 =
7:47 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Tight bushings</DIV>
<DIV><BR></DIV>
<DIV>OK all you engineer types. I was repining some hammer =
flanges today
on a Steinway that has been in a practice room. Action parts are =
Renner. It gets hard play 14+ hours a day. The action was =
rebuilt
4 years ago. Nearly all of the bushings were quite tight -- most =
1 or 2
swings. A few had 3 swings and I was pinning for 4 so since the =
action
had been in the shop (idle) for a couple of weeks, I thought maybe I =
could
just vigorously work the shank a few seconds and it would swing =
4. I'd
hold the flange and make the hammer swing back and forth fairly =
forcefully for
5 or 6 seconds and then test it again. In each case the ones =
that
previously would give 3 good swings, now only gave 1. The hammer =
dropped
from horizontal to vertical and stopped dead. </DIV>
<DIV> </DIV>
<DIV>What made the bushings get tighter by simply working the =
flange?
I'm stumped!</DIV>
<DIV> </DIV>
<DIV>dave</DIV><PRE>_____________________________
David M. Porritt
dporritt@mail.smu.edu
Meadows School of the Arts
Southern Methodist University
Dallas, TX 75275
_____________________________</PRE></BLOCKQUOTE></BODY></HTML>