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<DIV>Julia,</DIV>
<DIV>Some tell tail signs of lost motion are an uneven key board ,bubbling
hammers, dampers not lifting. Run your finger tips very lightly across the
keys and watch the back checks, see if they move while the hammers stay put.
Play the piano! you can fell it. It's all about correcting low performance in
the action, not just a checking and adjusting for a certain specification.
You're asking how to check for lost motion in this piano, I would ask, why do
you suspect that there is lost motion? BTW, blindly setting hammer blow and lost
motion to spec in an old, worn upright action can have a few consequences that
you might not be happy with.....like no damper follow. You gotta compromise on
the old beasts. Hang in there.</DIV>
<DIV>Fenton</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=dnereson@4dv.net href="mailto:dnereson@4dv.net">David Nereson</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, February 10, 2008 1:45
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: OK next question: Tugging on
ham. rail chek lost motion</DIV>
<DIV><BR></DIV>
<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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