those pesky swings

[Richard Brekne]

This, me thinks... would be a very bad idea. Much easier and much better
to rebush, or simply install new flanges.

RicB

"The easy way is always the hard way"
Gorges Patrinous in - To Bad the Error, by Peter Goodale


> tune4u@earthlink.net wrote:
> 
> Interesting question about what I see as an imperfect science, at
> best. I'm wondering if just testing the hammer for side-to-side motion
> while holding the butt (upright) or flange (grand) would be accurate
> enough to indicate wobble problems.
> 
> Here's a weird idea: Has anyone tried a drop of "pinblock restorer" in
> a worn birdseye to tighten it's grip on the pin? The most horribly
> wobbling hammers obviously occur when the pin has slipped out of one
> side of the flange, which surely indicates a worn birdseye, rather
> than redoing the bushings and repinning, I wonder if "dope" would
> work.
> 
> Alan Barnard
> Salem, MO
> 
>      ----- Original Message -----
>      From: Wimblees@aol.com
>      To: Pianotech@PTG.org ; caut@ptg.org
>      Sent: Monday, December 16, 2002 1:58 PM
>      Subject: those pesky swings
> 
>      We all know that a hammer is supposed to swing 4 - 8 times.
>      If it is less than 4, then the bushing is too tight. If it's
>      more than 8, supposedly the bushing is not tight around the
>      pin, and that might cause the hammer to wobble up to the
>      string, which will eventually lead to uneven wear on the
>      hammer, whcih creates tone problems, ya da, ya da.
> 
>      So here is the problem. I've got this hammer with only 3
>      swings. So that mean the bushing is too tight. Before I take
>      the pin out, ream the bushing, and put in the same size pin,
>      I put a little Protec on the bushing. But now, all of a
>      sudden, I've got 10 - 12 swings. According to the above
>      presumption, the bushing is now not tight around the pin any
>      more.
> 
>      Or is it? Has the introduction of Protec shrunk the bushing
>      to the point I need to ream and repin with a larger pin? Or
>      do I leave the original pin in there, and allow the 10- 12
>      swings?
> 
>      Wim

-- 
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html