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Jack to Knuckle Alignment
The jack to knuckle alignment is a very important
part of regulating that shouldn't be overlooked. The
correct way of adjusting them is to set the backs of the jacks
in line with the back wood lines of the knuckles.
They can be adjusted differently for different situations.
If a customer wants a heavier feel, you can put the jacks
farther under the knuckles. This will give you more friction
and less repetition. If you cheat the jacks out a little bit, you will
get more repetition and a lighter feel. I found that most pianists
like the jacks set correctly or cheated only slightly. If you are using
new wippens, you should cheat them out a little to compensate for
the felt compressing on the ends of the regulating buttons. When
adjusting them, it is important to have good lighting, and a low
work bench. Be sure to keep your head at the same angle and
the same distance from each jack. If the angle or distance changes,
you won't get an accurate read on them. After making the adjustment,
make sure your tool is completely off the regulating screw before you
check to see if your adjustment worked.
by Paul Eccardt, Chapter President
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