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<DIV><FONT face=Arial size=2>Paul,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>- Inspect the hitch pin area very carefully, in
case the roll pin is not driven in far enough.</FONT></DIV>
<DIV><FONT face=Arial size=2>- Inspect the bridge pins very carefully, and look
for issues with the bridge top or pins, elongation of the pin holes,
etc.</FONT></DIV>
<DIV><FONT face=Arial size=2>- Check the string coils on the tuning pins, and
look for a string pulling out of the pin because the becket length is too
short.</FONT></DIV>
<DIV><FONT face=Arial size=2>- I haven't looked at a new SD-10 in a long time to
see if the design of the termination bars has changed, but check carefully
around the capo for something which might allow the strings to dig in.
Or, look for an agraffe that is cracked and is lifting (if it is it in
agraffes area - I think the 5th octave spans the treble
break).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>20c drop repeatedly indicates a problem, but if
that was only one time and the other re-tunes have only been small changes of a
few cents, then do some light string seating work (bridge, counter-bearings,
etc). Also, seat the string coils on the tuning pins to be sure
they aren't too high or too low.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Don't drive the tuning pins down unless the
pins are obviously loose.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Good luck!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Don Mannino</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tubist@swbell.net href="mailto:tubist@swbell.net">Paul Mulik</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> Thursday, December 27, 2007 6:01
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> tuning instability on new
Baldwin SD10</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Hello list,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>One month ago my church bought a new Baldwin
SD10. I installed a DC the day after it was delivered (2 tanks, 3
rods), tuned it a few days later, and tuned it again a couple of
weeks after that. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm having trouble with a few of the unisons in
the fifth octave, there are 3 or 4 strings that just will not stay in
tune. I keep retuning them and they sound fine for a
while, but then a few days later they'll be 20 cents flat.
The tuning pins do not feel loose, and I've tuned other large
grands with no difficulties</FONT><FONT face=Arial size=2>, so I don't
think the problem lies in my tuning technique (though I could be wrong --
wouldn't be the first time!) I have not tried driving the pins further
into the pinblock; it seems to me this shouldn't be necessary on a new piano,
but again, I could be wrong.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Any suggestions?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Paul Mulik</FONT></DIV>
<DIV><FONT face=Arial size=2>Joplin, MO</FONT></DIV></BLOCKQUOTE></BODY></HTML>