Repetition Lever Height

[David Skolnik]

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Gorden -

Unless my math is wrong, 0.2mm converts to .008", which is the thickness of 
a blue front punching.  You can probably feel that when you are leveling 
keys.  However, setting rep lever height is done indirectly, by observing 
the slight movement of the hammer when "winking" the jack, or, in other 
words, gently depressing the jack heel.  If the rep lever is too high, you 
will observe no hammer movement, nor feel any resistance to the jack 
movement.  If it is too low, the hammer will drop very noticeably, and you 
will feel a significant drag on the jack as it escapes the knuckle.  Also, 
the jack might not be returning fully to its rest position.  You should 
assume that you will need to set this height more than once, as it will be 
affected by other aspects of regulation, such as spring strength or jack 
position.

David Skolnik





At 12:25 PM 7/26/2004 -0500, you wrote:
>List.  In regulating a grand with all new wippens, hammers and shanks, I'm 
>having a problem with determining
>the correct dimension between the top of the jack and the top of the 
>repetition lever, in setting the repetition lever height.
>
>On the back page of the March 2004 Journal, the Yamaha, Little Red 
>Schoolhouse, Step 18 of regulation, says that there should be
>0.2 mm between the top of the jack and the top of the repetition 
>lever.  And yes, I've read all of the other info provided, but I'm surely not
>that great at a tactile sensation with a finger to determine 0.2 mm.
>
>And I don't know how to measure the 0.2mm with a gauge in the lever 
>window.  I read some place that this thickness is about the same
>as a business card, but that doesn't help.
>
>Does anyone have a better, step-by-step procedure to follow to set the 
>lever height?
>
>Many thanks in advance
>
>Gordon Holley
>Associate Member
>Chapter 467, Indiana
>Goshen, IN

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