Pressure bar on upright piano

[Richard Brekne]

I believe the rule of thumbs is somewhere between 10 and 20 degrees angle off
the  termination, but you are looking for solid contact there and clear sound.
Any more pressure then is neccessary to achieve that is kind of wasted really,
and will only cause rendering problems,r increased string breakage or pehaps
even unnecessary wear on the termination.

If its not buzzing when you play it, and you dont see an overly steep angle..
leave it. You should be able to fairly easily move the strings side ways with
the help of a screwdriver, but it should take a bit of side ways pressure to do
so.

Cheers

RicB


Elian Degen J." wrote:

> Hello
>
> I just received an old Upright Rippen piano which for some time was subjeced
> to a very high degree of humidity.
>
> Most of the job is done alredy, but now it came to my attention that the
> pressure bar has lost pressure as some strings will just move freely
> sideways. I tried tightening it a little bit ( tuning is lower in excess of
> 150cts...) and it tightens easy, so I tried half turn per screw evenly
> across the whole pressure bar, Now when I strech strings stay in place.
>
> My question is,  should I leave it there?  Shall I tighten it further? How
> can I determine an optimal setting? or near it?
>
> Thank you
>
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--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html