My First Agraffe Repair - Done

[Isaac Sadigursky]

And another practical reminder:all modern agraffes are manufactured with
Seating area in concave shape and this allows the agraffe to be slightly
compressed during installation process and alighment.The old machinist
trick is:turn agraffe untill it seats thight,if it doesn't alighn-turn it
in-slighly forcing it 1/12-1/6 of a turn,and then BACK IT OUT!,,then turn
it in a liitle more-force again 1/12 of a turn and BACK IT OUT.After  that
attempt it should be properly seated and alighned.All this is done with the
treaded stem lubricated for easy penetration and easy removal in case it
breakes and to avoid temperature build-up..Just a free advice from previous
experiences...
BTW,Congratulations to Paul Revenko-Jones for a wonderful article in the
Journal,very detailed and up to the point.Bravo! As usual,I had learned a
lot.T!!


> [Original Message]
> From: David Ilvedson <ilvey@sbcglobal.net>
> To: <pianotech@ptg.org>
> Date: 3/3/05 7:54:07 PM
> Subject: Re: My First Agraffe Repair - Done
>
> That's a good tip!
>
> David Ilvedson
>
>
>
> ----- Original message ----------------------------------------
> From: Kent Swafford <kswafford@earthlink.net>
> To: Pianotech <pianotech@ptg.org>
> Received: Thu, 3 Mar 2005 21:49:48 -0600
> Subject: Re: My First Agraffe Repair - Done
>
>
> >There's little choice but to ream if you have a single agraffe to put 
> >into a single hole and it doesn't fit. However, there is a better way. 
> >Have a handful of agraffes available. If the first one doesn't fit, 
> >take it out and try another, and another until one fits. Each hole will 
> >take only a few tries to find one that fits,  and taking advantage of 
> >the natural variation in the fit of the parts is much easier than 
> >reaming.
>
> >Kent
>
>
> >On Mar 3, 2005, at 4:24 PM, Terry wrote:
>
> >> Glad to hear things worked out for you. Pianotek (I think) sells a 
> >> handy
> >> little reamer that is specifically designed to evenly shave off brass 
> >> from
> >> the bottom of the main body of the agraffe. It works well.
> >>
> >> Terry Farrell
> >>
> >>> That 1927 Steinway agraffe repair came off with hardly a hitch.  The 
> >>> new
> >>> agraffe from Schaff had that conical undercut.  Even so, I could not 
> >>> turn
> >>> it far enough after first contact for proper alignment.  And a 10-mil 
> >>> shim
> >>> washer produced about the same misalignment, only a half-turn earlier.
> >>> Instead what I did was this.  I wrapped the threads with a bit of 
> >>> paper to
> >>> protect them and then very lightly stroked the seating surface of the
> >>> agraffe with a fine-toothed machinist’s file.  I rotated the agraffe 
> >>> so as
> >>> to take off material evenly around the seat.  The first try was 
> >>> perfect.
> >>> It delayed first contact by about 90 degrees, which made proper 
> >>> alignment
> >>> reachable with a very snug fit.
> >>>
> >>> And yes, Joe, I did loose one becket, but the old strings went in and 
> >>> are
> >>> up to pitch.  I think it helped that I never completely straightened 
> >>> out
> >>> the wire ends when I removed the strings.  I enlarged the coils just
> >>> enough to allow the wire to slip out of the agraffe hole.  You can 
> >>> twist a
> >>> surprisingly small coil through an agraffe if you’re careful.
> >>>
> >>> Robert Scott
> >>> Ypsilanti, Michigan
> >>
> >>
> >> _______________________________________________
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> >>
>
> >_______________________________________________
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