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<DIV>List,</DIV>
<DIV> If you use veg-tanned leather there is not a =
corrosion
problem with the pins. Chromium tanned leathers are the corrosive =
culprits. Mike
Morvan Blackstone Valley Piano</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=Erwinspiano@aol.com
href="mailto:Erwinspiano@aol.com">Erwinspiano@aol.com</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> Monday, November 07, 2005 =
3:59
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Yamaha Key Bushing =
Replacement</DIV>
<DIV><BR></DIV><FONT id=role_document face=Arial color=#000000 =
size=2>
<DIV>
<DIV> <FONT size=3>Ron & All</FONT></DIV>
<DIV><FONT size=3> After following up on many of our high use =
rebuilds I
am extremely disappointed at the extreme wear factor on all the =
bushing cloths
we've tried. It's primarily the front rail pins. In one church, 2 =
years of med
heavy playing & many glissandos later the bushings are gone & =
keys as
sloopy as before </FONT></DIV>
<DIV><FONT size=3> SO when I get done with this post I'm =
ordering the
Kangaroo stuff from Schaff. I see no other alternative.</FONT></DIV>
<DIV><FONT size=3> I'm currently reworking a 1958 7 ft Petrof. =
Nice
piano. The center rail bushings are in perfect tolerance. The fronts =
were felt
& we changed those due to exessive slop.</FONT></DIV>
<DIV><FONT size=3> There may be a chance of corrosion on brass =
but right
now I'd take my chances with the leather even on the brass pins. Hey =
if they
last more than 2 years under heavy use then I'm even, if longer then =
I'm in
the black.</FONT></DIV>
<DIV><FONT size=3> Dale Erwin</FONT></DIV>
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<BLOCKQUOTE cite="" type="cite"> </BLOCKQUOTE>
<BLOCKQUOTE cite="" type="cite"><FONT =
face=Verdana><STRONG>We've
considered leather bushings,</STRONG> but my understanding is that =
there
can be a chemical reaction between the leather and the Yamaha =
brass key
pins. I don't see that the supply houses offer plated/steel pins =
in the
Yamaha size.</FONT></BLOCKQUOTE></FONT></BLOCKQUOTE></DIV>
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