[pianotech] WNG jack don't come back no more, no more, no more.....

[David Stanwood]

Hi Ed,

I've seen this problem w/WNG and attributed it to a rep spring that 
is too heavy a gauge for the hammer weight.  If you add a couple of 
grams to the hammer and readjust the spring I think you'll see the 
problem disappear.  Or try putting on a lighter gauge spring.

David Stanwood


>Have finally found a rebuild that can use the new space age WNG composite
>parts.  However, the jack will NOT return under the knuckle. (Steinway B). All
>the geometry looks good, and  I have put more spring in than is comfortable to
>play, raised the rep lever until there is a noticeable gap between the height
>of the jack, and when I pull the jack out from under, and let it go, it will
>not return.
>     This is a problem I noticed on a lot of the Baldwin Renner actions years
>ago.  Has anybody with WNG experience dealt with this before?
>Thanks,


>Ed Foote RPT