plate warping in 1877 Steinway B?

[Richard Moody]

When you unscrew a plate you must take note if it does rise up in
places.   That would indicate a warped plate was forced down when
it was screwed in originally.    Isn't this given in
is?     ---rm




----- Original Message -----
From: Paul Chick (EarthLink) <tune4@earthlink.net>
To: Pianotech <pianotech@ptg.org>
Sent: Monday, December 02, 2002 7:45 AM
Subject: Re: plate warping in 1877 Steinway B?


>
> ----- Original Message -----
> From: "Ron Shaffer" <ron1685@yahoo.com>
> To: <pianotech@ptg.org>
> Sent: Saturday, November 30, 2002 10:53 PM
> Subject: plate warping in 1877 Steinway B?
>
>
> > If I clamp the front down tightly, the rear (tail) will
> > raise about three inches (the new pinblock is exactly
> > where the old one was). Is this normal? I was worried
> > that bolting it down that much would stress the plate. Thanks.
> >
> Ron
> Did you notice if the plate was touching around it's perimeter
after you
> removed the plate bolts?  I had a Baldwin grand plate rise
almost 3" above
> the sound board at the tail when unbolted.  Baldwin told me that
it was
> unlikely the plate warped after being installed (or from
standing out of the
> piano).  Evidently, when the "plate installer" discovered the
warp, he
> installed it anyway to see if it would work.  Baldwin told me to
do the same
> but start bolting the plate at the pin block, then work my way
around to the
> raised end.  The plate went in without any problems. That was 15
years ago
> and the piano was manufactured in the 1930's.
>
> Paul Chick
>
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