[CAUT] Knuckle Direction

[Paul T Williams]

I also like to really massage in teflon powder on the knuckles.  It seems 
to help both ways.

Any thoughts on this? Do any of you apply McLube gray on the jack heads 
and rep levers, too? I've had inconsistant results with it. Sometimes, 
just smoothing them out with 0000 steel wool has worked fine.

Paul




From:
Don Mannino <dmannino at kawaius.com>
To:
"caut at ptg.org" <caut at ptg.org>
Date:
06/02/2010 04:05 PM
Subject:
Re: [CAUT] Knuckle Direction



OK, I guess I'll have to reply.  I was wanting to take a vote count on 
each side, because I was figuring it would end up being pretty evenly 
divided :-)

My vote is: Against the grain out, smooth grain on return.  This will give 
the best power, and the most control of the tone during soft playing.  If 
the leather grain on the skin is especially rough, though, then I might do 
it the other.  But applying Teflon powder smoothes out the roughness of 
the buckskin enough that it would have to be pretty awful skin to be too 
rough.

But like Jim said, installing them all the same direction is the most 
important.  It will function well either way.

If the knuckles have Ecsain skin, then there is no mark, and the grain 
does not have a direction.

Don Mannino

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of 
Dempsey Jr., Paul E
Sent: Tuesday, June 01, 2010 1:58 PM
To: pianotech at ptg.org
Cc: caut at ptg.org
Subject: [CAUT] Knuckle Direction

OK, maybe just too much week-end or perhaps old-timers....

I am re-knuckle-ing a set of grand shanks. The new parts are of Able 
manufacture and have a pencil line on each. 

Does this line face the flange or the hammer?

I know the line indicates the direction of the nap of the leather, but 
which way is preferable.



Paul E. Dempsey, RPT
Piano Technician Sr.
Marshall University
Huntington, WV
304-696-5418
304-617-1149



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