[pianotech] Leveling keys (the Steinway answer)

A440A at aol.com A440A at aol.com
Tue Jun 23 11:06:25 MDT 2009


Keith writes: 
<< If one looks closely at the front of the keyframe and keybed with  
keyblocks unfastened, this crown and reverse crown are evident. >>

I can usually see a crown in the keybed, but the frames, not so 
consistantly.  Even so, if the bed is crowned, and the frame is straight, the slight 
holding pressure of the cheek blocks will insure that there is a bit of 
pressure formed in the middle to prevent knocks.  
   It is important to not put too much pressure on the guide pins, since 
that will warp the keyframe up and create knocks!  
Regards, 



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