Pinblock too low

[Greg Newell]

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Comments below.


At 11:08 PM 9/12/2002, you wrote:

>Un screw the glide bolts  !

What would that do except ruin the rest of the regulation?

>How do you believe the action could go inside and not outside ?

I'm not sure what you're asking here. In my experience the action would not 
go back inside the piano after the rebuilder had returned it. In Mike's 
case the action was forced back in as is evidenced by the drop screw gouges 
in the underside of the pin block.

>Some sign of stripped rail on tubular frames.
>

Mike's piano is a Knabe. The one I worked on years ago was a Baldwin. What 
tubular frames?



Greg Newell




>Regards
>
>IO
>
> > -----Message d'origine-----
> > De : pianotech-bounces@ptg.org
> > [mailto:pianotech-bounces@ptg.org]De la
> > part de Greg Newell
> > Envoye : vendredi 13 septembre 2002 03:22
> > A : Mike and Jane Spalding; Pianotech
> > Objet : Re: Pinblock too low
> >
> >
> > Mike,
> >          I encountered something exactly like this after I
> > had sent my
> > customers piano to a rebuilder and it came back as you
> > described. I told
> > the customer it should go back but they refused as it had
> > already been at
> > the rebuilders 2 months longer than expected. Since I had
> > to resolve the
> > problem myself I went at the underside of the pin block
> > with a (initially)
> > sharp chisel. I peeled off two layers cursing under my
> > breath the whole
> > time and hit many a low tuning pin in the process. When all
> > was said and
> > done it regulated fine and is a fine instrument today but
> > Oh what an ordeal
> > that was! Not one of my proudest moments sending it to that
> > fellow. FWIW
> >
> > Greg newell
> >
> >
> > At 06:50 PM 9/12/2002, you wrote:
> >
> > >List,
> > >
> > >Today I was asked to examine a "rebuilt" piano and figure
> > out why it plays
> > >so poorly.  Knabe small grand from mid-1920's.  It was
> > obvious just
> > >sitting at the kyboard an playing a little, that the
> > damper timing was way
> > >uneven, and drop was way low.  Thought the solution would
> > be failry
> > >straightforward.  Then I pulled the action, which did not
> > slide out
> > >easily, and saw the pinblock hanging 1/4" below the
> > stretcher, and the
> > >furrows ploughed (plowed?) by the drop screws.  OK, now we
> > know why the
> > >last guy didn't regulate the drop.  Obviously got to make
> > some room to
> > >raise the drop screws.  Shanks are original, so I might
> > gain something by
> > >bolstering knuckles, but probably not enough.  I could go
> > in there with a
> > >disk sander and grind some off the bottom of the pinblock,
> > but I'd prefer
> > >not to inflict the noise and mess on the customer's living
> > room.  Anyone
> > >else ever faced this situation, and found a neat (i.e.
> > reasonably clean
> > >and quiet) solution?
> > >
> > >thanks
> > >
> > >Mike Spalding, RPT
> > >
> > >_______________________________________________
> > >pianotech list info: https://www.moypiano.com/resources/#archives
> > >
> > >
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> >
> > Greg Newell
> > mailto:gnewell@ameritech.net
> >
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives
>
>
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Greg Newell
mailto:gnewell@ameritech.net

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