sluggish centers

[gordon stelter]

Because all of those other centers are under enough
weight/spring tension to oppose whatever binding there
is in the flange. 
     Thump


--- Clyde Allen <tunepiano1@yahoo.com> wrote:

> Dave,
> Can you use denatured (wood) alcohol for this
> application? Thanks.
>  
> Clyde Allen, Assoc.
> Silver Spring, MD
> 
> Dave Nereson <davner@kaosol.net> wrote:
> Went to tune a lady's Baldwin spinet (not Acrosonic,
> but doesn't 
> matter) and after hitting the soft pedal, most of
> the hammers drifted back 
> very slowly. It had changed climates and the action
> centers were sluggish. 
> I've encountered this many times before.
> But what I don't get is: why is it almost always
> remedied by shrinking 
> only the hammer-butt center-pin bushings? Don't all
> the other center pin 
> bushings swell as well (or flanges shrink, whatever
> the case may be)?
> I applied about 1:4 alcohol to water to all the
> hammer flange bushings, 
> let it dry, and that freed them up pretty well, as
> it usually does. Still 
> had to re-pin a few. But why aren't all the jacks,
> wippens, and dampers 
> sluggish also?
> --David Nereson, RPT 
> 
> 
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