[CAUT] grand knuckles

[wimblees at aol.com]

Dan



Pull knitting yarn between the buckskin cover and the wool core where the knuckle is flat. 



Willem (Wim) Blees, RPT
Piano Tuner/Technician
Mililani, Oahu, HI
808-349-2943
Author of: 
The Business of Piano Tuning
available from Potter Press
www.pianotuning.com


-----Original Message-----
From: Dan Rembold <d_rembold at yahoo.com>
To: caut at ptg.org
Sent: Thu, Sep 24, 2009 7:51 am
Subject: [CAUT] grand knuckles



List,
I have a Steinway D in our main recital hall that I service, that gets a lot of 
use.  This piano was rebuilt by another shop about two years ago, and the 
hammers are holding up well, but the knuckles are already becoming flat and 
misshapen.  The hammers, shanks, and flanges are Steinway.  It's already to the 
point that the player can "feel" the jack drag off the front "node" of the 
knuckle, and getting an exact clean let-off point is hard to do.

I've thought of trying to fluff the knuckles with a brass brush.  Are there some 
other tips that I could use to extend the knuckle life expentancy until the next 
hammer change?  Flange centers are still good.

Any ideas would be appreciated.

Dan Rembold
Auburn University




      

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