those pesky swings

[Jeff Tanner]

Wim,
Yeah, the ya da ya da.

If you'll leave those hammer shanks at about 4 swings, your pianists will
adore you.  I just repinned our concert grand which was swinging about 7 or
8 times because the pianists couldn't get any control.  I repinned at from
2 to 4 swings after "working" them.  Improved the tone miles and miles, too.

Yeah, I live in the humid South, too.  If gravity will pull it down it
ain't too tight.

Jeff

>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
>
>