[CAUT] sos. woes

[David Love]

The simplest approach is to cove out the back of the backcheck at the point
where the sostenuto would contact it.  It doesn't take that long.  

If you know you will have the problem in advance you can shave more off the
tails of the hammers if they aren't too heavily coved.  Replace the
backchecks with Renner checks which aren't as deep as the NY Steinway style.
Finally (which you've already done) you can shave the pivot blocks slightly
to move things distally a small amount.    

After the fact, coving the backcheck is the easiest.  

David Love
davidlovepianos at comcast.net 
www.davidlovepianos.com

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
A440A at aol.com
Sent: Monday, November 19, 2007 3:58 PM
To: pianotech at ptg.org; caut at ptg.org
Subject: [CAUT] sos. woes

Greetings, 
     Ok, this ain't working. Maybe someone else has found the easy way
around 
this problem. 
      1917 Steinway M, complete action restoration, went just fine until I 
replaced the underlever assembly with a factory replacement.  There is not 
enough room for the sostenuto rod between the backchecks and the damper
tabs.  I 
have even moved the entire underlever assembly distal about as far as it
would 
go and it still is interfering.  
   I am wondering if replacing the sos. rod with a late model rod will help?

The original is one of the "cast" looking rods, and it appears to be larger 
than the modern ones.  Anybody run into this and found a way through it? 
Thanks, 

Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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