Key dip

[Joe And Penny Goss]

Yes!
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Clyde Hollinger" <cedel@supernet.com>
To: <pianotech@ptg.org>
Sent: Wednesday, November 05, 2003 6:14 PM
Subject: Key dip


> Friends,
> 
> While tuning a 1980 Wurlitzer studio piano today I noticed some of the
> bass hammers would damp the strings depending on how they were played.
> Letoff was fine, but there was too much keydip, resulting in the
> backchecks pushing the hammers into the strings after letoff.
> 
> It appears to me that all other specs will be in the correct range if
> the keydip is reduced.  Can this be done by shimming up the front rail
> of the key frame, if there are no shims to remove from under the balance
> rail?  I've never tried this.  I could put card punchings under all the
> front felt punchings, I know.  Advice?
> 
> Regards, Clyde
> 
> 
> 
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