Replacing a broken plate

Conrad Hoffsommer hoffsoco@luther.edu
Tue, 11 Jan 2005 12:41:35 -0600


Pierre,

At 21:44 1/10/2005 +0100, you wrote:
>Hi list,
>
>I'm looking for some information about  replacing a broken plate with a 
>plate from an identical piano.
>Has someone on the list some experience to share about this subject? Are 
>there some cases where this solution is not feasable? (location of screw 
>holes, pin block, downbearing etc..?)
>
>Thanks,
>
>P Gevaert
>


Has anyone responded to this off-list?

I haven't done that procedure myself, but I have tried to swap actions 
between "identical" models.  I can't help but think that you should expect 
to have to go through all the locating steps that the factory did 
originally...  and then some.

My guess is that the screw holes should line up nicely, but I doubt that 
the downbearing would be the same. I also would count myself lucky if the 
plate fit the pinblock very well. (which could also affect the downbearing 
in the treble, of course.)

You might be fortunate and the plate will drop in and be snug at the same 
level as the old, but I KNOW _I_ wouldn't be. All you can do is try and see 
how everything lines up, i.e. screw holes/tuning pin holes/height/lateral 
positioning...

How is the plate height determined? Dowels/wood blocks, "feet" or 
protrusions at perimeter screws? Combination?




Conrad Hoffsommer - Keyboard Technician
Luther College, 700 College Dr., Decorah, Iowa 52101-1045
Vox-(563)-387-1204 // Fax (563)-387-1076

- Right now, I'm hoping to live until my age matches my golf score,
- Until then, I'll have to be content to have my IQ match my handicap.


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