A new Squeak! -Reply

[David ilvedson]

> Date:          Wed, 22 Jan 1997 10:00:54 -0800
> From:          Warren Fisher <fish@communique.net>
> Subject:       Re: A new Squeak! -Reply
> To:            pianotech@byu.edu
> Reply-to:      pianotech@byu.edu



> David Graham wrote:
> >
> > On the subject of Yamahas that squeak,  I have two Yamaha Grands at
> > the Opera House in Chicago that have developed a very quiet sqeak in
> > the damper pedal.  It appears to be between the pedal rod and the
> > leather pad on the trapwork.  Since this is a loan program piano, I don't
> > want to get too adventurous with a solution , but if there is something
> > others have used in this situation, I would appreciate knowing what has
> > worked.
> > David Graham
> > Northern Illinois University
> David,
>
> That's an easy one.  It's the rod guide bushing felt.  The rod pushes
> hard against this felt as it slides through the hole.  Eventually the
> protective coating starts coming off leaving a rough surface which works
> just like a violin bow.  It resonates through the wood of the guides and
> the pedal lyre making a dandy squeak!  Use talcum or teflon powder
> applied with a artist brush.  Alternate sources are the leather at the
> top of the rod and the socket in the back of the pedal.
>
> Good Hunting!
>
> Warren
> --
> Warren D. Fisher
> fish@communique.net
> Registered Piano Technician
> Piano Technicians Guild
> New Orleans Chapter 701
>
And plan to rebush it the next service call!


ilvey, RPT
Pacifica, CA