Jimmenes there Greg !!... that jack is like WAYYYYYYYY out from underneath the knuckle. No way the thing should clear the knuckle by more then 1-1.5 mm at full depressed keydip. Something is bigtime wrong with the geometry and/or regulation of this thing... RicB OK folks, I finally have some pics that might prove helpful. I may have to do multiple emails though so it passes through the filters in a timely fashion. Here's the first showing direct manipulation of the wippen. Note where the drop screw contacts the leather. The jack tip is contacting the hammer flange in between the hammer shank ears. More to follow. Greg Url : https://www.moypiano.com/ptg/pianotech.php/attachments/20071115/9a530393/attachment-0001.obj
This PTG archive page provided courtesy of Moy Piano Service, LLC