Yamaha damper question (not splitting hair)

[Isaac OLEG SIMANOT]

Of course I will not be too emotive about that, for example, I will not say
the customer that its piano is in need of a new soundboard because I've read
an alarming post  !

Isaac.



> -----Message d'origine-----
> De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la part
> de Roger Jolly
> Envoye : jeudi 2 mai 2002 21:11
> A : pianotech@ptg.org
> Objet : Re: Yamaha damper question
>
>
> Hi Clyde,
>           Yep, and the right vintage. Don't beat around the bush. Prepare
> the customer to pay for the underlever tray removal, and reinstallation.
> Replace all centre pins. It's about 8hrs work to do, and get them
> all timed.
> I like to ream them all out to a #21 pin so that I remove some bushing
> cloth and get the bushings clean.   I've done lots of them, and
> no recalls.
>
> Regards Roger
>
>
>
> At 07:57 AM 5/2/02 -0400, you wrote:
> >Friends,
> >
> >Earlier this week I received a complaint that a key was sticking on a
> >1976 Yamaha G2 grand piano.  When I arrived I diagnosed the problem as
> >the D#4 damper not returning to rest on the strings after the note was
> >played.  I replaced the center pin holding the damper lever to the
> >damper lever wire flange and all was fine.  The same thing had happened
> >to the neighboring D4 damper three years ago.
> >
> >The removed pin looked discolored where it rotated in the felt bushing,
> >so I decided to check it out under a microscope and see if I could learn
> >something.  Some friends have a cheap one, but it served to show me that
> >the center pin appeared to be deeply scratched around the pin.
> >
> >Now to my questions:  Is this a case of flaking plating that I heard
> >about?  If not, what is likely the problem?  Are the center pins I buy
> >from Schaff plated as well?  Will this become a chronic problem for this
> >particular piano?  If so, is there any preventive measure I can take
> >without replacing that center pin in every damper?
> >
> >Thanks,
> >Clyde Hollinger, RPT
> >
> >
> >
> >
> Roger Jolly
> Balwin Yamaha Piano Centres.
> Saskatoon/Regina.
> Canada.
>