Tight bushings

David M. Porritt dm.porritt@verizon.net
Sat, 15 Jun 2002 10:05:48 -0500


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It looks normal.

dave
*********** REPLY SEPARATOR ***********

On 6/14/02 at 6:54 PM Greg Newell wrote:

Howz the center pin plating?



At 06:47 PM 6/14/2002, you wrote:

OK all you engineer types.  I was repining some hammer flanges today
on a Steinway that has been in a practice room.  Action parts are
Renner.  It gets hard play 14+ hours a day.  The action was rebuilt 4
years ago.  Nearly all of the bushings were quite tight -- most 1 or
2 swings.  A few had 3 swings and I was pinning for 4 so since the
action had been in the shop (idle) for a couple of weeks, I thought
maybe I could just vigorously work the shank a few seconds and it
would swing 4.  I'd hold the flange and make the hammer swing back
and forth fairly forcefully for 5 or 6 seconds and then test it
again.  In each case the ones that previously would give 3 good
swings, now only gave 1.  The hammer dropped from horizontal to
vertical and stopped dead.  
 
What made the bushings get tighter by simply working the flange?  I'm
stumped!
 
dave


_____________________________
David M. Porritt
dporritt@mail.smu.edu
Meadows School of the Arts
Southern Methodist University
Dallas, TX 75275
_____________________________
Greg Newell
mailto:gnewell@ameritech.net
_____________________________
David M. Porritt
dporritt@mail.smu.edu
Meadows School of the Arts
Southern Methodist University
Dallas, TX 75275
_____________________________


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