YC Growing Brackets

[Allan Gilreath]

Terry,

The keybed on these instruments is held in by the screws as you noticed
and two guide dowels.  It can be removed while the piano is horizontal
but is much easier when it's turned on a skid.  One caveat when removing
the keybed, be sure to measure the spread between the insides of the rim
and make sure that it is set back at this measurement when you reinstall
the keybed.  Young Chang's don't move much if any but some others can
compress substantially...

Allan
Allan L. Gilreath, RPT

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
Behalf Of Farrell
Sent: Friday, June 06, 2003 6:44 AM
To: Pianotech
Subject: Re: YC Growing Brackets

Well, yes, loosening or removing the keybed did occur to me - I saw that
it had many screws holding it in - I didn't know if that was all that
was holding it in - some are morticed, etc. - just don't know about a YC
- but then also you would have to remove the legs, and then you have the
weight of the piano - I just figured that was a very last resort. How
would you use a pinblock support jack to increase the distance between
the pinblock and keybed if the action is stuck in the action cavity?
Just didn't seem to me to be a good option - only a last resort.

Terry Farrell
  
----- Original Message ----- 
From: "Marcel Carey" <mcpiano@globetrotter.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, June 05, 2003 8:27 AM
Subject: RE: YC Growing Brackets


> Terry,
> 
> Wouldn't it have been easier to just loosen the keybed screws and shim
> it from the case in order to increase the keybed-pinblock distance?
> One could just loosen them without taking them out completely of
> course. I would loosen them with the action in the play position, use
> a pinblock support jack so increase the distance, shim the sides,
> remove the jack, and voila!
> 
> Marcel Carey,
> Sherbrooke, QC
> 
> > -----Original Message-----
> > From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
> > Behalf Of Farrell
> > Sent: 4 juin, 2003 19:34
> > To: Pianotech
> > Subject: Re: YC Growing Brackets
> >
> >
> > Man, I'll tell you what - be careful trying to get that
> > action out! I had to let the glide bolts all the way up,
> > press down on the center rail, and I still couldn't get it
> > all the way out. I wiggled and squiggled and finally got
> > the shank flange screws out from under the stretcher,
> > removed the treble flange screws which let me wiggle the
> > flanges forward and got the drop screw away from the
> > pinblock/stretcher enough that I could finally get it out.
> > Took me about 35 minutes to get it out from when I first
> > started yanking. If that thing had grown just a little bit
> > more, I really don't know what I would have done (I guess I
> > could have drove home and got my chainsaw). This woman said
> > that she previously had played the piano, but had not
> > touched it in several years. He small children were ready
> > to start lessons and she noticed that the keys "didn't seem
> > to play as well as they used to"!
> >
> > Action spread on a YC is supposed to be 112.5 mm (courtesy
> > of John Ross 10/18/00). This one was about 122 mm.
> >
> > One warning I can think of is that on this piano, others
> > had taken the action out before me - I saw all the gouges
> > in the bottom of the pinblock - but they just dragged the
> > action out with the drop screws screaming - AND chipped the
> > polyester finish at the base of the stretcher - nice touch
> > (that's why I loosened the hammer shank flanges).
> >
> > Heads up guy - you'll have fun - I did. And thanks to this
> > list and previous posts about growing action brackets, I
> > think I did a pretty good job of appearing like I knew what
> > I was doing and talking about. Thanks Listees!
> >
> > Terry Farrell
> >
> > ----- Original Message -----
> > From: "Avery Todd" <avery@ev1.net>
> > To: "Pianotech" <pianotech@ptg.org>
> > Sent: Wednesday, June 04, 2003 6:47 PM
> > Subject: Re: YC Growing Brackets
> >
> >
> > > Hi Terry,
> > >
> > > Strange that you should mention this right now. I have to
> > go look at one this
> > > Friday that, from what they told me, probably is this
> > very thing. It'll be my
> > > first time, so I'm interested in all of the responses.
> > >
> > > Avery
> > >
> > > At 02:04 PM 06/04/03 -0400, you wrote:
> > > >Yahoo! I think I finally have my first case of growing
> > action brackets.
> > > >Quite a job getting that action out of the action
> > cavity! What is the best
> > > >and definitive way to determine if it is the brackets?
> > Action spread?
> > > >
> > > >It has all the symptoms - drop screws grinding into the
> > pinblock, the long
> > > >axis of the hammer rail looking like one of Del's 5
> > meter radius ribs,
> > > >lost motion in keys in treble and bass, etc. But I
> > suspect there might be
> > > >a definitive way to know for sure. Anyone?
> > > >
> > > >Who to talk to at YC? Thanks.
> > > >
> > > >And what does this job entail? Replace and regulate I suspect?
> > > >
> > > >Terry Farrell
> > > >_______________________________________________
> > > >pianotech list info:
> https://www.moypiano.com/resources/#archives
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
> 
> 
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