Sostenuto headache

[David M. Porritt]

Clyde:

I'd have to speculate that the rod is just a little too close to the damper
levers.  If pulling the action out solved it, moving the bar back (toward
the backchecks) just that same amount should do the same.  This would allow
the action to be in the right place, and also solve the sostenuto problem.

dave

> -----Original Message-----
> From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf
> Of Clyde Hollinger
> Sent: Friday, May 14, 1999 11:22 AM
> To: pianotech@ptg.org
> Subject: Sostenuto headache
>
>
> I hope someone can help me with this.
>
> Steinway B made in 1979.  Whenever the sostenuto pedal is depressed, I
> hear a thump, and I will see several dampers jump, most notably damper
> A#3.  After much hairpulling and trying moving the sostenuto rail in and
> out, which changed nothing, I eventually discovered that by pulling the
> action out a smidgin (?) the thing would work fine.  So I blocked the
> action out a little at the keyframe stop (dag?), which seemed to solve
> the problem.
>
> But I never really figured out what was happening here.  Do you know?
> Is there a better way to solve the problem?  I live in the fear that
> during Sunday's competition something will happen that will have the
> whole world mad at me for all time.  Please advise.  Thanks!
>
> Clyde Hollinger, RPT
> Lititz, PA
>