<div>Richard</div> <div> </div> <div>This is similar to a bobbling problem I had with a D at school. A combination of roughing the tail, making sure the rake and the angle is right on the back check, and reducing the rep spring to where it just barely holds the balancier up to allow the jack to return, will take care of most the bobbling. It was suggested that the wippen flange and the balancier pinning might be the culprits, but after reducing and then increasing the pin size, I don't think it made any difference. Then I read somewhere that some bobbling is allowed, and not to worry about it, at least on a D, as long as the hammer isn't bouncing up and hitting the strings.<br> <br> </div> <div style="CLEAR: both">Willem (Wim) Blees, RPT<br> Piano Tuner/Technician<br> Honolulu, HI<br> Author of <br> The Business of Piano Tuning<br> available from Potter Press<br> www.pianotuning.com</div> <br> <br> -----Original Message-----<br> From: Richard and Julie Capp <capprj@gmail.com><br> To: pianotech@ptg.org<br> Sent: Sat, 6 Oct 2007 7:36 pm<br> Subject: bouncing Schimmel hammers<br> <br> <div id=AOLMsgPart_2_4e7f8ffb-97b0-4c3e-aacd-c385f81ba607>Hello list,<br> I have a problem with bouncing hammers on a Schimmel CC208T.  This is not the bubbling/bobbling hammers that can happen with a soft blow, but a rebound from the rest felt that restrikes the string on a sharp staccato blow.  The hammer flange pinning is a bit loose at 3-4 grams (7-8 swings), but I don't think that is the whole problem.  Anyone encounter a similar Schimmel problem? <br> <br> Richard Capp<br> </div> <div class="AOLPromoFooter"> <hr style="margin-top:10px;" /> Email and AIM finally together. You've gotta check out free <a href="http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/index.htm?ncid=AOLAOF00020000000970" target="_blank">AOL Mail</a>!<br/> </div>