YC Grand Clicks

Richard Brekne Richard.Brekne@grieg.uib.no
Tue, 12 Mar 2002 10:42:54 +0100


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Hi James.

Would like to get a better idea of the "click" you are talking
about. But from the posting below it's easy to think you are
dealing with the noise that the jack's backside can make if it
slams into the regulating button felt. The "click" could also be
from the repetition spring as well, but that generally sounds
more like what I would call a click. If its the regulating button
felt / jack thing it sounds more perhaps like a hard thump...
maybe even so hard that I might use the word "click"...

Anyways.... if its the button / jack thingy... then check for too
strong tension on the repetition spring, wear and indentation on
the roller, jack top regulated too low, hard button felt, too
free a center pin for the jack. Or any combination of these.

If its the spring itself try cleaning and reseating them in the
whippen, make sure they are not to long, and spring tension can
also play a part here.

Sounds to me like a good time for the ol 50,000 mile service job.

RicB

James Baker wrote:

> Help!  Clicks in about half the notes on a Young Chang G-185
> grand, c 1996.
>
> Starting with the key bottomed out and moving the front
> of the key upwards slowly, the jack tail moves down and away
> from let-off
> button about 1/16th inch and then snaps up as if it had been
> held by
> something. The click occurs when the jack snaps forward. The
> jack center pin
> resistance seems within acceptable limits, the spring works
> properly.
>
> The non-clicking jacks rotate smoothly throughout key stroke.
>
> Any brilliant ideas on how to solve this?
>
> Thanks,
>
> James

--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway
mailto:Richard.Brekne@grieg.uib.no


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