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<DIV><FONT face="Arial Narrow" size=3>You're not really checking lost motion,
but, as you said in your first post, the lack thereof. You can depress the
damper pedal (so the returning wippens don't have any assist from damper lever
springs), then depress ten keys at a time and let them up very slowly, looking
to see if any jacks don't snap all the way under their hammer butts. If
they don't, turn the capstan down by quarter turns until the jack returns all
the way when the key is let up slowly. Otherwise, the visual "backcheck
wink" method is as good as any -- very lightly tap on the keys and see if the
backcheck just "winks" before the butt moves (watch the catcher). Or,
as someone else suggested, press on the tail end of the keys, mashing them into
the back rail felt a little, and see if any hammers wink backwards. If so,
the jacks are holding them up off the rail a little. </FONT></DIV>
<DIV><FONT face="Arial Narrow" size=3> --David Nereson,
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=KeyKat88@aol.com href="mailto:KeyKat88@aol.com">KeyKat88@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> Friday, February 08, 2008 10:13
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> OK next question: Tugging on
ham. rail chek lost motion</DIV>
<DIV><BR></DIV>
<DIV>Greetings,</DIV>
<DIV> </DIV>
<DIV> Thank you for answers validating my
method of checking lost motion. </DIV>
<DIV>NEXT question....Then how can I check lost motion when this one piano a
customer has, has a brace which will not allow the rail to move with a
backwards tug and I cant check the lost motion, Is there another way
of checking it? I am guessing I have to go key to key and check it.</DIV>
<DIV> </DIV>
<DIV>THank you</DIV>
<DIV>Julia</DIV>
<DIV>Reading, PA </DIV><BR><BR><BR>
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