[CAUT] grand knuckles

[reggaepass at aol.com]

Dan, 



You've gotten some good advice about bolstering.  If bolstering is not what is needed, we routinely resurface knuckles (as you would hammers) and have had excellent results when done properly.




Alan Eder


-----Original Message-----
From: Dan Rembold <d_rembold at yahoo.com>
To: caut at ptg.org
Sent: Thu, Sep 24, 2009 10:51 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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