<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>M & H model 50</title></head><body> <div><font face="Arial" size="-4" color="#000000">>The problem is that the sticker cloth is sliding forward very badly on</font></div> <div><font face="Arial" size="-4" color="#000000">>the capstan during play.  On the one I repaired it was observable by</font></div> <div><font face="Arial" size="-4" color="#000000">>eye, and the wear on the sticker cloth was a long mark instead of a<br> >round dimple.</font></div> <div><br></div> <div>This effect dawned on this morning. As the sticker is lifted, the arc of the support arm</div> <div>pushes the cushion towards the front.  A bolstered cushion would minimize the sliding</div> <div>friction but the felt is too short.</div> <div><br></div> <div>Not having a sample in the shop I can only speculate.</div> <div>What is the optimum travel of the support arm?</div> <div><br></div> <div>Is it lifting to (slide forward) or from (slide back) a horizontal position?</div> <div><br></div> <div>Or lifted crossing the horizontal position through the key stroke, this would cause the</div> <div>sticker to change direction by being pushed forwards at the beginning and pulled</div> <div>backwards at the end of the travel.</div> <div><br></div> <div>We need someone to test these different executions for friction.</div> <div><br></div> <div>As far as bobbling hammers go, I'd check the hammer blow and key dip to insure</div> <div>jack clearance.  Decreasing the blow and taking up the lost motion might may be</div> <div>the cheapest fix.</div> <x-sigsep><pre>-- </pre></x-sigsep> <div><br> Regards,<br> <br> Jon Page</div> </body> </html>