What problems do "Teflon actions" develop, and how can they be fixed?

[Alan McCoy]

Be aware though that measuring Dw and Uw on teflon flanges is a bit
different than on wool bushings in that with teflon flanges there is more
initial friction resistance to movement, but once the part is in motion,
there is very little friction resistance. May be part of the reason for its
wretchedness in play - harder to control the action.

Alan 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of gordon stelter
Sent: Tuesday, November 28, 2006 12:59 PM
To: Pianotech List
Subject: What problems do "Teflon actions" develop, and how can they be
fixed?

     I'm looking at trying to remedy a Teflon action in a  1974 Steinway "L"
, in a  fancy hotel lobby. It feels clunky, heavy and uneven. ( Not much fun
to play! ) I'm planning to offer the management a variety of options for
improving it, from just lubricating all the non-Teflon friction points ( and
the Teflon ones?
) to trying to regulate it, to replacing and regulating the whole shaboo. (
$9,000 ??? ) 
     Can these things be regulated, according to traditional protocols, with
any hope of success ? How would you experienced fellows approach this ?
I've replaced one before, but the managemant might find the cost
prohibitive. It doesn't seem to be clicking. Its'
just wretched to play on.
     Any and all suggestions will be most gratefully receieved!

     Thanks!
     Thump
     


 
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