Kimbal/Piano disk

[PAT A RALPH]

Joe & Penny,

Talk to Mike Zerweste at Piano Disk.  Some of the earlier solinoids were
noisey and the only solution was replacing them with newer actions.

If you need more information, let me know.

Ken Gerler

----- Original Message -----
From: Joe & Penny Goss <imatunr@primenet.com>
To: <pianotech@ptg.org>
Sent: Friday, November 26, 1999 3:26 PM
Subject: Re: Kimbal/Piano disk


> PS, I forgot to mention that there is no dag to hold the action down in
the
> rear center only on the ends of the rear action. Could this be the problem
> and if so have you any suggestions as how one should make a repair of fix
> it?
> ----- Original Message -----
> From: Joe & Penny Goss <imatunr@primenet.com>
> To: <pianotech@ptg.org>
> Sent: Friday, November 26, 1999 11:14 AM
> Subject: Kimbal/Piano disk
>
>
> > List,
> > In working on a Kimbal grand that has been fitted with a piano disk
> system,
> > the major complaint was "the piano disk unit causes lots of noise".
> > I  have done the following to quiet the unit but can still hear
unwelcome
> > noise.
> > Bedded the key frame
> > lubbed the frame drawer
> > tightened all binding screws in the action, rim and case parts
> > adjusted sustain
> > I was not able to service the piano disk   action parts that raise each
> key
> > It is my belief that the most of the remaining noise is the result of
the
> > key stick being raised too fast or far so that when it returns to the
key
> > bed it does so with a clatter. Very softly but still a noise  that is
not
> > heard when the piano is played by human means.
> >
> > Would replacing the balance rail felt punchings or front felt help?
> >
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