loose/tight flanges

[David Skolnik]

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Wim -
I often use my Apsco upright action cradle (removing # 1 & # 88 wippins), 
clamping the top action and rotating it, first so that the hammers swing 
clear without contacting reps.  You can immediately pick out suspect (tight 
or loose) pinning.  By taking off and measuring (by feel, gauge, or swings) 
a few, you know how to interpret the way the rest appear swinging on the 
frame.  This method works well unless the shank traveling is poor, in which 
case, in this unnatural position (X rated?) the hammers may rub, in which 
case, you have to swing one while restraining its neighbor.  (sounds almost 
like Square Dancing with the police).    To do the wippins, rotate the 
action so that the wippin flanges are on top.  (Don't let the hammershanks 
drop hard as you rotate...use something to restrain them so there is no 
damage to the centers).  You can adjust the position of the balance point 
of the wippin suspension so that you can set the rate of movement of your 
samples (you've set samples).  Those that move in an otherly manner are 
your repinning wictims.    Also good to check side to side movement.  Hope 
some of this helps.


David Skolnik


At 01:23 PM 02/07/2002 -0500, you wrote:
>I know how to correct the problem, but is there an easier way, other than 
>taking each of them off the rail one at a time, to check the tightness of 
>grand hammer flanges? Or, for that matter, the wippen flanges?
>
>WIm


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