Kawai "beast"

Richard Brekne richardb@c2i.net
Fri, 05 May 2000 18:14:35 +0200



"John M. Formsma" wrote:

> Richard,
>
> Thanks for the suggestions.
>
> .... Then resurface both the pressure bar and the termination.>>
>
> Since this piano is only 3 years old, it would have to be done under
> warranty. I had thought about doing this very thing if necessary.

Three years old ??? shouldn't really be necessary unless its been under heavy
use and / or there was sloppy factory work.

> <<Another thing, sometimes false beats related to the termination / pressure
> bar area can be lessened by re-seating the strings with a so called false beat
>
> eliminator tool (available from Schaff I believe). Press firmly on the
> string between the termination and the pressure bar instead of the speaking
> length.>>
>
> I had not thought about this. What does this tool (which I have) accomplish
> in this area? It would seem that the tendency would be to create grooves in
> the V-bar, which would eventually defeat the purpose of resurfacing it.

Well of course you don't want to over do it. No point grinding the strings into
the V bar now is there.. grin. Just push a bit or massage lightly to see if you
get a lessening of the falseness. You dont want to bend the strings (as in
putting a kink in them), just help them "bend" (as in bow) around the V bar a
bit. The tool accomplishes just what it otherwise does close to the termination.
Falseness relating to the termination is kinda complicated and can actually be
several things. One of those seems to be the way the string follows the profile
of the V bar, the type of contact it makes if you will. This can concern both
the upper and lower side of the V bar. Give it a try and see if it helps.

Personally I suspect the string "bending" around the V bar needs to have a
certain "match" to the profile of the bar. That the string moves a bit in
relation to normal tuning isn't necessarily a concern. Tho if you are changing
pitch by quite a bit you might need to run through the strings again.

>
>
> <<Course you wanta make sure this area is indeed the cause of the falseness,
> but I have yet to see this job not make a marked improvement in sound
> clarity.>>

Actually,,, grin.. 3 years old or not... this probably still holds true.

>
>
> Yes, I am sure it would make an improvement.
>
> John Formsma
> Blue Mountain, MS

Let us know what you end up doing and how it worked out ok ??
--
Richard Brekne
Associate PTG, N.P.T.F.
Bergen, Norway





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