Pressure bar screw tightening

[bppiano at aol.com]

I watched an old hand on some new pianos coming in to a store actually loosen the pressure bar as a way to counter the particular models tendency to break strings.  Any thoughts?

Bruce Pennington


-----Original Message-----
From: Ron Nossaman <rnossaman at cox.net>
To: hpp at highpointpiano.com; Pianotech List <pianotech at ptg.org>
Sent: Wed, 21 May 2008 10:17 pm
Subject: Re: Pressure bar screw tightening


> Someone recently mention pressure bar screw tightening in a post. I > would be interested in reading comments on this topic for rebuilding and > regular service. A topic I don’t remembering reading much about. 
> > Kindest Regards, 
> > Garret 
 
I'd say resist the impulse. The pressure bar exists to supply a counter bearing angle at what amounts to the V bar in a vertical. If the pressure bar is bottomed out on plate mounds, tightening the screws is superfluous. If it's not, tightening the screws is also superfluous if the counter bearing angle already exists. There are at least a couple of things a tech can do by way of periodic maintenance to a piano that might qualify as beneficial to the instrument. This doesn't rationally qualify as one of them. 
 
Just say no. 
Ron N 

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