[CAUT] Friday puzzler

[Paul T Williams]

I removed one key lead and it now is working much better. 

I still don't understand why it was working until I took off the stack and 
then put it back on after raising the sharps a touch, checking the keys, 
lubing the key bushing cloths and balance rail cloths, polishing the front 
and bal. rail key pins, etc. You know, just general maintenance stuff. 

There was and still is, no debris, no tight centers, capstans good and 
polished (no burrs), wip cushions all good, hammers swing at 7, keys nice 
and free, no tight balance holes, pins not catching on fronts or backs of 
mortises, key dip remained at factory spec, key height factory specs (now 
including the sharps :>) ), rep springs weren't gunked up and are as 
strong as they should be, etc.

I will blame it on little piano gremlins!

Thanks for all the suggestions to check.  I learned a couple other things 
to look for next time something is wrong.  I have 8,800 other keys to play 
with! 

Best,
Paul
 



From:
Paul T Williams <pwilliams4 at unlnotes.unl.edu>
To:
caut at ptg.org
Date:
06/27/2010 02:12 PM
Subject:
Re: [CAUT] Friday puzzler



Nope. 

I've tried switching wips, hammers.  Nothing is catching.  I didn't change 
anything else.  Just put the original wip back in just now and still no 
progress.  With hammers up and away.  I put in a new wip and it was worse. 
???? 

I pushed down on the origianl wip and key and comparing it to a neighbor, 
properly regulated, it feels quite a bit heavier on the push, so Im 
getting closer. no prob on the mortises, key, balance, holes, jack cushion 
or any of that.  there are 4 leads in the front of the key, so maybe I 
should take out a lead.   

But WHY did this action behave before I took the stack off the first time 
to raise up all the sharps as they were too low?  This is a natural key 
which had nothing done other than raise up the blow distance a bit? Why I 
always get the weird stuff is beyond me! 

Looking for more input, please. 

Paul 







From: 
Jon Page <jonpage at comcast.net> 
To: 
caut at ptg.org 
Date: 
06/25/2010 07:28 PM 
Subject: 
Re: [CAUT] Friday puzzler




I've had this happen: Front rail pin contacting front edge of mortice.
That took a long while to track down. Now I always check it when a
key is sluggish for no apparent reason.
-- 

Regards,

Jon Page



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