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<DIV><SPAN class=861432016-22102003><FONT face=Garamond =
color=#800000>Thanks
Don,</FONT></SPAN></DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond =
color=#800000>In part
what I am trying to get at here is distinguishing between friction and =
firmness
in the bushing. Can you hear the tonal difference between a note that =
has a
friction problem vs one that has a firmness problem?</FONT></SPAN></DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond =
color=#800000>My normal
procedure in reconditioning an action includes checking action center =
friction,
duh, and I check side to side play gang-style checking for winking =
hammers, but
I'm looking around to see if someone has figured out a way to =
systematically
check for both friction and firmness in an efficient way (ie without
painstakingly removing every flange!!)</FONT></SPAN></DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond
color=#800000>Alan</FONT></SPAN></DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=861432016-22102003><FONT face=Garamond =
color=#800000>PS Bob,
Sending them to Marcia is cheating! :-) Hope things are =
great down
there in Modesto.</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #800000 2px =
solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> =
caut-bounces@ptg.org
[mailto:caut-bounces@ptg.org]<B>On Behalf Of </B>Don =
Mannino<BR><B>Sent:</B>
Wednesday, October 22, 2003 8:11 AM<BR><B>To:</B>
caut@ptg.org<BR><B>Subject:</B> FW: Pinning and =
Tone<BR><BR></FONT></DIV>
<DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr =
align=left><FONT
face=Tahoma size=2></FONT></DIV><SPAN =
class=265252321-21102003><FONT
color=#000080>Alan,</FONT></SPAN></DIV>
<DIV><SPAN class=265252321-21102003><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=265252321-21102003><FONT color=#000080>The tone =
of the piano
can be the best gauge, as poor pinning has a pretty distinctive sound =
to
it. I would describe it as a thin and weak tone. Checking =
the
friction level in a thin sounding note, repinning it, and listening =
will tell
you a lot.</FONT></SPAN></DIV>
<DIV><SPAN class=265252321-21102003><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=265252321-21102003><FONT color=#000080>Experience =
is the best
teacher here. I don't have a specification to tell you, except =
firm
enough by feel and a good solid tone by ear. I suppose the
engineers could give you a spec, though. X amount of deflection =
with Y
amount of force applied Z distance from the pin.</FONT></SPAN></DIV>
<DIV><SPAN class=265252321-21102003><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=265252321-21102003><FONT color=#000080>Don
Mannino</FONT></SPAN></DIV>
<DIV><SPAN class=265252321-21102003><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV><SPAN class=265252321-21102003><FONT
color=#000080></FONT></SPAN> </DIV>
<DIV></DIV>
<DIV><FONT face=Tahoma size=2>-----Original =
Message-----<BR><B>From:</B> Alan
McCoy [mailto:amccoy@mail.ewu.edu] <BR><B>Sent:</B> Tuesday, October =
21, 2003
1:24 PM<BR><B>To:</B> College and University =
Technicians<BR><B>Subject:</B>
RE: Pinning and Tone<BR><BR></DIV></FONT>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000080 2px =
solid; MARGIN-RIGHT: 0px">
<DIV><SPAN class=463231420-21102003><FONT face=Garamond =
color=#800000>Hi
Bob,</FONT></SPAN></DIV>
<DIV><SPAN class=463231420-21102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=463231420-21102003><FONT face=Garamond =
color=#800000>Well
OK. Thing of it is, do you know the specs here. How much deflection =
per how
much side pressure? I'm guessing that the only test people really =
use to
check side play is the old screwdriver blade, or brass rod, under =
the shanks
gang style to check for winking hammers indicating a loose center =
pin
bushing. This is a good test, but it is neither definitive nor =
quantitative,
right? Also, whether a loose center shows up on this test depends in =
part on
how smooth the rod is as well as how loose a bushing is.
</FONT></SPAN></DIV>
<DIV><SPAN class=463231420-21102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=463231420-21102003><FONT face=Garamond =
color=#800000>Do you
have a different method to test for firmness of
bushings?</FONT></SPAN></DIV>
<DIV><SPAN class=463231420-21102003><FONT face=Garamond
color=#800000></FONT></SPAN> </DIV>
<DIV><SPAN class=463231420-21102003><FONT face=Garamond =
color=#800000>Alan
McCoy</FONT></SPAN></DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #800000 =
2px solid">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> =
caut-bounces@ptg.org
[mailto:caut-bounces@ptg.org]<B>On Behalf Of
</B>BobDavis88@aol.com<BR><B>Sent:</B> Wednesday, October 15, 2003 =
2:21
PM<BR><B>To:</B> caut@ptg.org<BR><B>Subject:</B> Re: Pinning and
Tone<BR><BR></FONT></DIV><FONT face=arial,helvetica><FONT =
lang=0
face="Bookman Old Style" size=3 FAMILY="SERIF">In a message =
dated
10/15/2003 11:33:43 AM Pacific Standard Time, amccoy@mail.ewu.edu
writes:<BR><BR>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff =
2px solid; MARGIN-RIGHT: 0px"
TYPE="CITE"></FONT><FONT lang=0 style="BACKGROUND-COLOR: =
#ffffff"
face=Arial color=#000000 size=2 FAMILY="SANSSERIF">But =
how does one test
for firmness in any<BR>quantitative, definitive
way?<BR></BLOCKQUOTE><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face="Bookman Old Style" =
color=#000000
size=3 FAMILY="SERIF"><BR>I'd say with side play. That's what =
Steinway is
doing in addition to friction measurement: measuring the amount of =
deflection with a known amount of side pressure. Same objection - =
it only
measures both sides at once, but it provides a go - no-go
gauge.<BR><BR>Bob Davis</FONT>
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