<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16608" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT face=Arial>Truth be said, I have no answer. I made it work, but didn't really solve the problem.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Keep in mind that everything worked perfectly on the bench but not in the piano. Furthermore I set up my bench with upside down front rail glides (as Baldwin does in their grands) to be able to copy the keybed in the piano. No matter how I set it up, (front action rail floating, center action rail floating, rear action rail floating, or right on the money, that hammers checked perfectly in all the situations, but not in the piano. </FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>How did I make it work?</FONT></DIV> <OL> <LI><FONT face=Arial>I repined the balancier to almost no friction.</FONT></LI> <LI><FONT face=Arial>I set the spring to where the hammer would barely rise. (of course I had to re-regulate the flys again)</FONT></LI> <LI><FONT face=Arial>I repined the hammer shank flanges to 7 or 8 swings. (learned that from Fred Drasche at Steinway)</FONT></LI> <LI><FONT face=Arial>I took some of the radius off the hammer tails.</FONT></LI></OL> <DIV><FONT face=Arial>With all that I could not get hammers 1 and 2 (A0 & A#0) to check and on the softest blow some other would not check, but all in all quite satisfactory.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>I feel I use a band-aid to correct the problem. Never being able to know the real problem. The customer will be happy, but I have what I believe to be an unsolved problem</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>I want to thank everyone for their help and input.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=Arial>Al Guecia</FONT></DIV><FONT face=Arial> <DIV><BR>Allied PianoCraft<BR>PO Box 1549<BR>High Point, NC 27261<BR>(336) 454-2000<BR><A href="mailto:PianoTech@alliedpianocraft.com">PianoTech@alliedpianocraftcom</A><BR><A href="http://www.alliedpianocraft.com">www.alliedpianocraft.com</A></DIV> <DIV> </DIV> <DIV> </DIV> <DIV></FONT> </DIV> <DIV><FONT face=Arial>----- Original Message ----- </FONT></DIV> <DIV><FONT face=Arial>From: "David Skolnik" <</FONT><A href="mailto:davidskolnik@optonline.net"><FONT face=Arial>davidskolnik@optonline.net</FONT></A><FONT face=Arial>></FONT></DIV> <DIV><FONT face=Arial>To: "Pianotech List" <</FONT><A href="mailto:pianotech@ptg.org"><FONT face=Arial>pianotech@ptg.org</FONT></A><FONT face=Arial>></FONT></DIV> <DIV><FONT face=Arial>Sent: Tuesday, March 18, 2008 10:47 AM</FONT></DIV> <DIV><FONT face=Arial>Subject: Re: Steinway M Backcheck Problem</FONT></DIV> <DIV><FONT face=Arial><BR></FONT></DIV><FONT face=Arial>> At 08:06 AM 3/15/2008,  Al Guecia wrote:<BR>>>OK.......... back to the piano on Monday and check all of this out.<BR>> <BR>> <BR>> OK Al - It's Tuesday.  What's the answer?<BR>> <BR>> David Skolnik<BR>> <BR>></FONT></BODY></HTML>