String spacing problem

[paul bruesch]

When I find strings touching each other like that, I always look at the
grooves in the hammers before doing anything. Generally the grooves match
the current position of the strings, so I leave bad enough alone. Aside from
the possibility of pitching a filing job, isn't that the best
(non-)solution?  If you space the strings properly, you'll find new felt for
at least one of them, meaning the other two won't sound at all. Of course
striking one string with "new" felt and a properly shaped impact point might
sound better than slamming all three with that flattened spot.

Paul Bruesch
Stillwater, MN

On 10/28/07, Bruce Dornfeld <bdornfeld at earthlink.net> wrote:
>
>  Sorry this is a very late response, but there is another thing you may
> want to consider.  If the string spacing is a problem in the whole area,
> perhaps tightening the screws for the pressure bar would help.  You can get
> an idea if the pressure bar is too loose in this area by using a simple tool
> to compare the angle in different ranges in the piano.  A spinet hammer
> shank or small screwdriver blade will fit up next to where the string comes
> out of the pressure bar.  If the bottom end of the tool (sticking out
> towards the keys)comes closer to the strings in this area compared to
> others, tightening the pressure bar may help.  I find this problem most
> often near the bass string end of the pressure bar, where the trichord wedge
> dampers are also used.  I usually leave the strings at full tension if I
> can.  You know the bar is moving when you hear the pitch change.  Those
> pressure bar screws are sometimes too hard to turn at all wi! thout lowering
> the string tension.  You do not want to break one off.  The best time to
> find this problem is before doing a pitch raise.  Tightening the pressure
> bar screws will help bring the pitch up too!
>
>
> Bruce Dornfeld, RPT
> bdornfeld at earthlink.net
> 847-498-0379
>
>
>
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