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In a message dated 12/17/2004 5:25:45 PM Eastern Standard Time,
Richard.Brekne@grieg.uib.no writes:
> The jack spring and center pin configuration need only provide for a
> reasonably quick return to firing position. Any increased spring tension
> or over loosened center pins is really counter productive.
>
Greetings,
The jacks' and hammers' center pinning on this old Janssen upright
are pretty good for its age. Are you saying that if the center pinning (on
the hammers?) or
(jacks?) gets any looser by more wear that these springs arent a good idea. I
am thinking that if I replace these without repinnning everything, and the
piano gets more wear to the pins there could be a future problem? Perhaps I
should leave well enough alone?
By the way, by the looks of this one, Janssen made a reeely fine upright!
Julia Gottchall,
Reading, PA
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