Wurli growing action brackets?

[Farrell]

Ditto for everything mentioned so far. There are several other good
indicators of this problem also. One is 88 gouges (front to back) in the
bottom face of the pinblock from the drop screws. Or, wait another year or
two and you can find out how to remove the keybed from the piano so that you
can get the action out. Or, maybe an even easier way is to wait an
additional couple of years and, if you're lucky, the stack will grow up to
the pinblock bottom, the brackets will continue to grow, and the brackets
will eventually self-implode (shatter) - then the action returns to a state
where it is fairly easy to remove from the action cavity - at this stage you
will not have any additional questions about whether you have a bracket
problem.

Phil Glen is funny in that I don't think he reads his emails all the way
through. I have done several of these YC action bracket replacements. At
first, I was never sure whether I was facing the bracket problem and I would
send him an email with all sorts of symptoms and spread measurements, etc. I
think maybe he doesn't read the emails at all - he simply has some sort of
search program that scans his emails - as soon as it picks up "YC", "grand"
and "hammers blocking" an email is automatically generated and sent to you
asking for your address and stating that he will send you a set of action
brackets.

Just joking about Mr. Glen's email stuff - but the point is that if let-off
is getting closer to the strings, etc., you have growing action brackets.
Contact him and you will find him great guy and very helpful. He will send
you a kit with the brackets, instructions, forms for labor reimbursement,
etc.

Terry Farrell


> hTo: deanmay@pianorebuilders.com; Pianotech
> Subject: Re: Wurli growing action brackets?
>
> The first symptom that I have seen is blocking hammers. The metal action
> brackets have swelled and you will waste your time to try to regulate.
> Norm Barrett
> Memphis chapter
>
> Dean,
> Norm is right on with his post. Another clue is that the let off
> dowels (Young Chang nomenclature?) will be falling off the threads from
> trying to adjust-compensate for the blocking hammers.
> Checking can be way out of whack also.
> The brackets though dimensionally unstable will look just fine.
> No cracking or any other visual abnormalities.
> Tom Driscoll
>
>
>
> > Would somebody give me a description of what a growing action bracket
> is?
> > Could that be what is causing a couple of YC grands I work on to be
> > constantly out of regulation?
> >
> > Dean
> >
> > Dean May