Sticking Steinway dampers

[David ilvedson]

Newton,

Thanks for clarifying what I didn't completely explain...

David Ilvedson, RPT
Pacifica, CA

> Date:          Fri, 17 Jul 1998 17:45:51 -0400
> From:          nhunt@jagat.com (Newton Hunt)
> To:            pianotech@ptg.org
> Subject:       Re: Sticking Steinway dampers
> Reply-to:      pianotech@ptg.org

> David Ivedson wrote:
>  If this happening regulate Sostenudo!  Make sure the
> dampers are not raising too far.  They should just raise to
> slightly above the height of the dampers raised by the sostenudo
> pedal.  If raising to high they can bind in the guide rail
> bushings.
> 
> This statement could confuse some people.  The proper procedure (one
> that works) is to regulate the timing of the dampers the the sustain
> pedal so that there is a small amount of lost motion between when the
> pedal is depressed and when the dampers begin to move.  Next set the
> sustain lever stop block so that the dampers are raised the same height
> as the sharp keys.  Next regulate the damper stop rail so the dampers
> have but a tiny amount of lost motion after the pedal (not the key) is
> depressed.
> 
> Finally you can regulate the sostonuto.  Set the blade so it is at about
> 45 degrees to the vertical, set the height of the blade tip to the same
> height as the tip of the tabs.  With the action in and blocks in place
> depress the sustain then the sostonuto, release the sustain and tap the
> damper heads.  If any fall through the blade needs to be moved toward
> the dampers.  Next depress the sostonuto several times to check if any
> tabs are being touched.  If so tap the blade bracket toward the font of
> the keys.
> 
> This should make all work well.
> 
>                                 Newton
>                                 nhunt@jagat.com
> 
> 
> 
>