Matthew
Good job. As for the dithering hammers ( one of our English contributors used the term and I love it!) I think someone mentioned decreasing the tension on damper lever springs. This was for the Yamaha actions that have the problem that Matthew describes. Listees' am I remembering that correctly?
I'm also with David on no more than 1/8th letoff combined with an increase in dip.With letoff more than 1/8th the hammer has to be thrown across too far a distance to allow soft play. The increase in dip - aftertouch will move the top of the jack away from the returning butt and help with the symptom.
I think Ron N. mentioned that there is a geometry problem with the Yamaha jack that leads to bobbling hammers on a soft blow. I wonder if the Kawai has the same issue. Again ,good job. I'll bet they were pleased with what you accomplished.
Tom D.
Bring the letoff back to 1/8" and increase the dip so the hammer doesn't bounce off the jack.
dp
David M. Porritt, RPT
I serviced the Kawai today.
I adjusted the capstans, letoff and checking. It went really well. Although, when I was doing the letoff, I couldn't get the piano to do 1/8''. When I did 1/8'', and then pressed the note pianissimo, it would double strike, so I did just a little bit more letoff and the issue resolved.
Here is a bigger question. After I finished, I played a Bach piece, and one thing I did notice was that it was somewhat difficult for me to play really soft. Is there something more I need to do to obtain this? Or, maybe to state it better, I could play "forte" and even "piano", but to obtain a "mezzo piano" was difficult. What can I do that would help with the dynamics?
Thanks again for all your help,
TODD PIANO WORKS
Matthew Todd, Piano Technician
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