<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>Re: Steinway M Backcheck Problem</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/> <style> </style> </head> <body bgcolor="#ffffff"> <div align="left">If you are going by Spurlock...3 to 3.5 inch radius...you can make the circle on a piece of paper to get the curvature...<br/><br/>David Ilvedson, RPT<br/>Pacifica, CA 94044<br/><br/> <div style="padding-right: 5px; padding-left: 5px; padding-bottom: 5px; border-left: #000000 3px solid; padding-top: 5px"> <hr/>Original message<br/>From: AlliedPianoCraft <alliedpianocraft@hotmail.com> </alliedpianocraft@hotmail.com><br/>To: "Pianotech List" <pianotech@ptg.org> </pianotech@ptg.org><br/>Received: 3/14/2008 4:46:24 AM<br/>Subject: Re: Steinway M Backcheck Problem<br/><br/> <div align="left"><font face="Arial">Thanks for the suggestions on this. </font></div> <div><font face="Arial"> </font></div> <div><font face="Arial">The thing that bothers me about this piano is that the backchecks come almost straight up from the key with a big outward bend at the top. I tried making a small bend at the bottom and taking away the big bend at the top, it didn't help in the bass, but helped somewhat in the other sections. </font></div> <div><font face="Arial"> </font></div> <div><font face="Arial">All is regulated properly, touch, a soft spring return, etc. I checked the hammer shank pining and fixed a few of those and also check the balancier pining for tightness. </font></div> <div><font face="Arial"> </font></div> <div><font face="Arial">I'll try working on the bench set up and reshaping the tails. The tails are quit rounded now. Do you think they should be a little flatter?</font></div> <div><font face="Arial"> </font></div> <div><font face="Arial">Al Guecia</font></div> <div><font face="Arial"> </font></div> <blockquote dir="ltr" style="padding-right: 0px; padding-left: 5px; margin-left: 5px; border-left: #000000 2px solid; margin-right: 0px"> <div style="font: 10pt arial">----- Original Message ----- </div> <div style="background: #e4e4e4; font: 10pt arial; font-color: black"><b>From:</b> <a title="wimblees@aol.com" href="mailto:wimblees@aol.com">Willem Blees</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> Thursday, March 13, 2008 1:08 PM</div> <div style="font: 10pt arial"><b>Subject:</b> Re: Steinway M Backcheck Problem</div> <div><br/></div> <wbr> </wbr> I had a similar problem with a D at the university. As John suggested, reshape and rough up the tails. Also check balancier pinning. But even when you've done all you can, I have seen this problem on brand new Steinways. So apparently it's something Steinway allows to happen. <br/><br/> <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: AlliedPianoCraft <AlliedPianoCraft@hotmail.com><br/>To: Pianotech List <pianotech@ptg.org><br/>Sent: Thu, 13 Mar 2008 5:47 am<br/>Subject: Steinway M Backcheck Problem<br/><br/> <div id="AOLMsgPart_2_6ef7d76f-1252-4348-8f7a-8906fc6c6623"> <div><font face="Arial">I am regulating a 10 year old Steinway M with all original action parts. I am having a problem with checking. The piano checks 100% on the bench, but no checking at all in the bass section and 85% OK in all other sections.  I have adjusted the angle on the backchecks with no success. Does anyone have any thoughts on what the problem my be and a possible fix?</font></div> <div><font face="Arial"> </font></div> <div><font face="Arial">Al Guecia</font></div> </div> <div class="aol_ad_footer" id="u8CA53440AABDB32-F6C-1189"><font style="font: 10pt ARIAL, SAN-SERIF; color: black"> <hr style="margin-top: 10px"/>Supercharge your AIM. Get the <a title="http://download.aim.com/client/aimtoolbar?NCID=aolcmp00300000002586" href="http://download.aim.com/client/aimtoolbar?NCID=aolcmp00300000002586" target="_blank">AIM toolbar</a> for your browser.</font> </div> </blockquote> </div> </div> </body> </html>