Detuning bass strings was Re: loose bridge pins

[Joe And Penny Goss]

Hi Paul,
A few years back I decided to try an implosion of a piano that was
unrepairable.
With the piano almost at pitch, I took
OUT All of the screws holding the plate! Nothing happened! I then took an
eight pound sledge and began to give several good wacks to various struts
and thin spots that were not covered by strings and still nothing! I never
did get the critter to go! So to me  if a plate is going to go there must be
some weakness already thereI must have beat on that plate for 5 minutes, go
figure.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message -----
From: "Paul Tizzard" <ptizzard@mweb.co.za>
To: "Pianotech" <pianotech@ptg.org>
Sent: Monday, February 03, 2003 12:45 AM
Subject: Detuning bass strings was Re: loose bridge pins


> Hi,
>
> A couple of weeks ago someone asked if they could detune just the bass
strings, to work on the bass bridge, without damaging the frame. I was
surprised to read that one can! I have always been led to believe that you
have to detune the piano in a specific way eg. all A's, A#'s etc. I see that
Ron Nossaman has again ok'd the procedure, so I wasn't seeing things. How is
it that structurally the frame is able to withstand the release of tension
in the bass area? Is it related to the findings of Al Sanderson, that the
plate is "loaded up more equally" when pitch raising  starting on A1 and
going up chromatically?
> Thanks,
>
> Paul Tizzard
> S. Africa
>
>
> ----- Original Message -----
> From: "Ron Nossaman" <RNossaman@cox.net>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Monday, February 03, 2003 6:51 AM
> Subject: Re: loose bridge pins
>
>
> >
> > >Can you "safely" pound in loose bridge pins without structural damage
to
> > >the piano?
> >
> > Probably, but it won't make them tighter.
> >
> >
> > >If this is not recommended, what about "soaking" the holes with 5 min
> > >epoxy, with the pins in place?
> >
> > CA works as well. Do you mean just pins, or pins and strings?
> >
> >
> > >They are semi  loose, but not to such an extent that you can remove
them
> > >without the aid of a needle nose pliers.  If need be, can i safely
detune
> > >the entire bass section, in order to remove and replace ALL the old
pins?
> >
> > Yes.
> >
> > >There are NO cracks in either bridge, so I just want to get the pins
TIGHT
> > >as quickly and easily as possible. Thanks for the help!
> > >
> > >
> > >Terry Peterson
> >
> > Now, why do you want to tighten the pins? If there are no cracks, what
are
> > you hoping to accomplish in the bass? What about the treble? What's the
> > situation with the piano, and what kind of piano, that indicated you
needed
> > to make the pins tighter?
> >
> > Ron N
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
>
>
> _______________________________________________
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