[pianotech] Punching Stack

Paul T Williams pwilliams4 at unlnotes.unl.edu
Wed Apr 1 14:20:41 PDT 2009


Wow!  50mph!  We had that the last two days.  What a pain in the butt! 
Snow flakes, too, but nothing stuck! Much better than Fargo!!

Anyway..  Try the Wurzen front rail felt punchings.  For key dip use some 
thicker ones on the bottom, and gradually thin them out to the top....not 
too many, though. ...Dont make it a rainbow of colored punchings!! 

A good idea is to really polish the key pins and apply some McLube or 
Protek, or whatever you're favorite juice is to avoid "side-play" friction 
once it's regulated properly .

You may need to re-bush the front rail bushings as well....check for 
really wobbly side play!  Good extra work and pretty easy to do.

Paul




Steven Hopp <hoppsmusic at hotmail.com> 
Sent by: pianotech-bounces at ptg.org
04/01/2009 02:46 PM
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[pianotech] Punching Stack






Hello all,
 
I went to a small Schaff & Sons grand yesterday that had a drink spilled 
into the keyboard at some point in it's life.  Diagnosing the liquid aside 
the front rail and balance rail punchings are covered in a black goo and 
are hard.  (Can a goo be hard?)  Anyway what would be a suggested punching 
stack to start with so that there would be room for removals if necessary 
when the regulation begins?  Any help is appreciated.
 
Thanks,
 
Steven Hopp
Midland Texas
(50 MPH wind here today!  Hang on to your hats)

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