Pulley Keys

[Farrell]

"I usually first determine which way the hole is elongated and mark where
I'll repair the hole so that the keyfronts are flush."

Indeed, but how does one determine EXACTLY where the hole should be? If this
is not done very accurately, the key fronts will be misaligned. Now this is
not difficult on a piano that has equal length keys, but how to do on a
9-foot piano keyboard with longer keys toward the bass?

Terry Farrell

----- Original Message ----- 
>
>     I usually first determine which way the hole is elongated and mark
where
> I'll repair the hole so that the keyfronts are flush.  Then I make a saw
> kerf across the bottom of the key with a hacksaw or coping saw, get a flat
> toothpick (which is hardwood), put a little glue on it or in the slot or
> both, and insert the flat, wide end of the toothpick into the slot first
so
> that it wedges itself into the slot tightly.  Let the glue set up, then
trim
> the excess.  The toothpick should fill the ovaled-out part of the hole.
If
> positioned correctly, a key pin will now just barely fit into the hole,
> which might require a bit of easing with a rat tail file or the Yamaha "CF
> tool" (meant for easing balance hole bushings from the inside of the
> mortise).
> This method along with others was in the Journal awhile back, as someone
> else mentioned.
> If it's just a tiny bit "pull-ey",  dab some diluted wood glue around the
> hole, insert a key pin, and let dry.
>     --David Nereson, RPT
>
>
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