Stein-D rolled bridge

[Terry]

Michael G.(UK) wrote:


> Hello David Renaud and List
> S&S "D" year 2002 with rolled bridge? Bridge(s)?!
> This sounds to me ultra serious. What can we learn from this? The problem
> needs exhaustively investigating. In view of the fact that many of us
> re-string such beasts (and I can only think this must be as a direct
result
> of the original stringing process) what are the pit-falls which could lead
> to such a major problem?

Poor belly design, construction, and/or materials.

> By re-capping would not the original problem still
> be present?

Likely, depends on what the original problem is.

Terry Farrell

> Please post all thoughts and rectification proceedures that we
> may all learn!
> Regards from Sussex-on-Sea.
> Michael G.(UK)
> >
> >   Approx. 3 year old Steinway D
> >   Appears to have a severely rolled bridge.
> >
> > Measurements.......
> >  With a dial gauge I measure plus 10 at the back
> > and 0 at the front at about D4. At about D5 0 bearing.
> > Most readings are lower at the front then back
> > throughout.
> >
> >  So I call in a friend with a proper bubble gauge who
> > gets results consistent with mine. At D4 plus 24 at
> > back, negative 12 front.
> >
> >  Of added significance may be that the bass bridge
> > has roll; Negative 15 front, on second highest bass
> > bridge note.
> >
> >  What motivated me to measure was buzzing back scale
> > on the chrome plates, as if the rear of the bridge
> > had lifted enough to eliminate good contact with the
> > plate. Termination points do not stay seated, more
> > buzzing has appeared over the winter.
> >
> >  There is still some crown on the board, as seen
> > by a stretched string, but the bridge has rolled
> > forward.
> >
> > Questions
> >
> >   This is a relatively new piano, so a warranter
> > issue.
> > What should be done?
> > What is likely to be suggested?
> > What arguments can be had against half measures?
> >
> >   If they suggest just recapping the bridges.
> > They should do it; correct?
> > Would such a solution be a band aid to a more serious
> > soundboard problem?
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>
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