Key Cover Problem

[Alan R. Barnard]

Thanks, Joe!

Alan Barnard
Salem, MO
Joshua 24:15



----- Original message ----------------------------------------
From: "Joseph Garrett" <joegarrett at earthlink.net>
To: pianotech <pianotech at ptg.org>
Received: 11/29/2006 1:35:23 AM
Subject: Re: Key Cover Problem


>Alan asked: "I have a music teacher customer with a Yamaha grand that has a
>poorly counter-balanced (or some problem) fallboard. It has made several
>credible attempts to chop hands off young students.
> 
>It appears to have never had any sort of close-retarding mechanism, let
>alone a Soft-Close device.
> 
>Tried Googling up a solution, 'cause I know it's been on the list, but I
>got endless chains of stuff and no answers (and no hits when I added
>"site:www.ptg.org" for some reason.)
> 
>Someone help me out here, please. What's a good fix?
> 
>Alan,
>I'd install a  Steinway spring. In case you don't know what that is, it's a
>spring about 3-4" long w/a very minor spring bend. It is installed IN the
>cavity case, in the arc of the travel of the back of the Fallboard. As the
>fallboard is opened the spring, (with it's tapered curve), the resistance
>is increased. If it is installed correctly, when the fall board is in it's
>full open position the back of the fallboard will have JUST passed the top
>of the spring curve. To close the fallboard, it will take quite a bit of
>umph to get the fall board to start closing. Difficult to explain, but a
>simple installation. Just looked it up in the Schaff catalogue. It's Number
>960 on page 124.
>Regards,


>Joseph Garrett, R.P.T.
>Captain, Tool Police
>Squares R I




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