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<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial"> </span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial">The dampers help return action parts to rest...not their design necessarily...you will need to get the dip the same and probably need a slight bit of lost motion...adjust and cycle action slowly to see that jack returns. Of course you have flicked jacks to make sure the jack spring is strong enough or jack center isn't tight<br /><br />David Ilvedson, RPT<br />Pacifica, CA 94044<br /><br /></span></font></p>
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<hr />Original message<br />From: "Michelle Smith"
<michelle@smithpianoservice.com> </michelle@smithpianoservice.com><br />To: "Pianotech List"
<pianotech@ptg.org> </pianotech@ptg.org><br />Received: 1/23/2007 8:09:49 PM<br />Subject: jack not returning on high treble<br /><br />
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<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial">Hi everyone. I briefly worked on a drop action piano today (the type with capstans and inverted stickers instead of lifter wires and grommets) that the jacks would not return after the initial strike. We see it every day, right? Well, I did a multitude of tests to see if it was a friction issue. It wasn’t. I didn’t have a lot of time to make adjustments (I was there to work on a different piano) but here are two facts to ponder. First, it was ONLY the notes that do not have dampers (the extreme treble). Second, the dip on these notes was <i><span style="font-style: italic">slightly</span></i> less than the rest of the piano, otherwise, all measurements were the same.</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial">Thanks for helping the eternal newbie. =)</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial"> </span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial">Michelle Smith</span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial">Bastrop</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial">, Texas</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial"> </span></font></p>
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