---------------------- multipart/alternative attachment Hi Richard, Check out the back rail - I've found many Yamahas that are not bedded because the keyframe is not contacting the dag blocks. A piece of veneer on the keyframe will take care of the problem (thanks to Roger Jolly for the tip!). Respectfully, Jon >I have looked at bedding several times on this one example I have at >the UiB. In the middle section there is defininatly a slight problem >and always has been. And no matter what I do it seems to stay. I >wrote on this a couple years back and we got into a discussion about >the hammer rail flexing. > >But bedding specific, the middle section displays some minor >tendancy for neighborhing hammers to jump a bit when a key is played >hard. Not very much mind you. The top two sections show none of >this. And the bass is quite solid as well, tho I have had to adjust >the bedding on occasion to assure that. > >Yet the uneveness of that description does not match the eveness of >this lack of power sensation. That is evident over then entire >keyboard, and if it is more pronounced anywhere, it would be in the >two top sections me thinks. It does not seem like the proximity of >action brackets has any affect. > >The bedding question is a logical place to look, as is the hammer >rail flexing thing to be sure. Thats part of what makes me scratch >my head on this one. Those things seem well within acceptable >tolerances. > >RicB > >Marcel Carey wrote: > >> Hi RicEven if everything has been checked and rechecked, could the >>keybedding be at fault? Check the keybedding with the pedals >>depressed (the keybed sometimes flex enough to change the bedding). >>Either that or the hammer rail is bending. Is that sensation the >>same all over the keyboard, or more concentrated to areas between >>the action's brackets? Just other thoughts, Marcel Carey, >>Sherbrooke, QC >> > > > > >-- >Richard Brekne >RPT, N.P.T.F. >UiB, Bergen, Norway ><mailto:rbrekne@broadpark.no>mailto:rbrekne@broadpark.no ><http://home.broadpark.no/~rbrekne/ricmain.html>http://home.broadpark.no/~rbrekne/ricmain.html > -- Jon Ralinovsky Piano Technician Department of Music Miami University 513/529-6548 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/84/3f/4d/4c/attachment.htm ---------------------- multipart/alternative attachment--
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