agraffe stub misery

[Porritt, David]

Mike:

 

I had to replace an agraffe on a Steinway in our practice rooms.  It is
the second one I've replaced on that piano.  It and 10 others that we
have were all made in 1983.  The 11 that we have are all within 399
serial numbers so they came out very close to each other.  I'd think
that if it were a bad batch of agraffes that we'd have problems on some
of the others.  I think now that it is probably a guy on the line who
just turned them down too hard and left too much internal stress in the
agraffe. 

 

dp

 

 

David M. Porritt, RPT

dporritt at smu.edu <mailto:dporritt at smu.edu> 

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
Behalf Of Michael Kurta
Sent: Saturday, March 08, 2008 10:26 AM
To: Pianotech List
Subject: Re: agraffe stub misery

 

    Patrick:

    The flex shaft may be your best option, but I can suggest two
others.  The other day I saw a 90 degree angle drill adapter with a
small chuck that connects to your drill that might work.  You might also
consider going up from the bottom of the pinblock with a R.H. close
coupled or right angle drill which will spin the agraffe out through the
top.  It will have the same effect as a L.H. drill bit coming down from
the top.  Why do some have this affinity for broken agraffes?  Just
lucky I guess.....

    Mike Kurta 

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