No Power Yamaha revisited (Yamaha says...)

[Richard Brekne]

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Hi Will

Yes... this is the proceedure I've been using for nigh on 2o years now.
Ever Since Laroys first visit to Oslo. And as I have said, it generally
has worked well, but recently I have run into 3 instruments where this
was not enough.This proceedure left the keyframe bedded, with all glide
bolts in contact with the frame... but there was lots of lost power, and
lots of neighbor hammer bobbing on hard blows, And the only way to
eliminate these problems was to put way more pressure on glide bolts
then this proceedure results in.

Cheers
RicB

PatchWick@aol.com wrote:

> Hey list!
>
> About 10 years ago I had the pleasure of attending Yamaha's "Little
> Red Schoolhouse" session, where the small class was mentored by some
> of Yamaha's best, including LaRoy Edwards who many of us have seen in
> workshops over the years as well.  Great program. If you can get a
> dealer to sponsor you it is well worth the time!
>
> Anyway, the Yamaha method for bedding the key frame is simple and in
> my experience works every time: Remove the stack so you can also
> remove the keys. Tighten all screws in the bed, replace the stack (to
> "weight" the frame), and put the frame back in the piano. Now set the
> glide bolts as you normally would. Remove the stack, replace the keys
> and Voila! the perfect key bedding. After bedding this way, then you
> set the key height (also done with the action in the piano and the
> stack on - very slick). Finally the dip is set later in the process
> when it can be done on each key individually taking into account the
> proper distance as well as the correct or desired feel of the
> aftertouch.
>
> will

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html
http://www.hf.uib.no/grieg/personer/cv_RB.html


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