[pianotech] Breaking Let-off Regulating Dowels on Pramberger JP 208 6'10" Platinum Edition

Jim Busby jim_busby at byu.edu
Fri Jan 15 06:08:23 MST 2010


Paul,

What Jon said, and always carry a bunch of extras. They sometimes just break, and it's nice to not worry about it.

Jim

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Paul Milesi
Sent: Thursday, January 14, 2010 11:41 PM
To: PTG Pianotech List
Subject: [pianotech] Breaking Let-off Regulating Dowels on Pramberger JP 208 6'10" Platinum Edition

Tonight I was regulating a Pramberger JP208.  When turning up the let-off dowels to bring let-off closer to the strings, I found several of them cracked.  :(  I was very careful, turned slowly, and tried a couple of different tools, including the Yamaha short and long, as well as a "traditional" grand capstan tool (Schaff, I think).

The dowels don't seem to be excessively high, outside the normal range.  I also noted upon inspection that somebody else had cracked a few before me.  Is this a known problem with Young Chang or Pramberger?

Suggestions?  Other tools?  Should I replace the cracked ones?  They still regulated and appeared "stable,"  even though split on one side.  If I should replace, then from what source (OEM, supply house, etc.)?

Thanks,

Paul Milesi, RPT
Washington, DC
(202) 667-3136
E-mail:  paul at pmpiano.com
Website:  http://www.pmpiano.com
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