[pianotech] sluggish (was no subject)

[Allan]

I respectfully submit that a little too much friction between the capstan
screw and the whippen cushion is just enough to prevent proper return.

Allan Sutton
www.pianotechniquemontreal.com

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of pianoguru at cox.net
Sent: 5 juin 2009 22:03
To: pianotech at ptg.org
Subject: Re: [pianotech] sluggish (was no subject)

Nobody has mentioned what would be my prime suspect:  The balance pin 
hole in the bottom of the key being too tight.  You should be able to 
lift the key an eighth inch or so, and it fall freely.  If not, and the 
key bushing are not too tight, the balance pin hole in the bottom of the 
key needs to be reamed, mostly on the sides, being careful not to create 
a front-to-back chucking (pully) key.

Frank Emerson
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