Weber let off problem

[Steve Grattan]

Rob Stuart-Vail wrote:
> 
> Steve:
> 
> >The spread dimension is the distance between the center of the center
> >pin on the hammer flange and the center of the center pin on the wippen
> >flange.  Set this at 112mm and then test the regulation.
> 
> Could you explain how to "set this?"
> 
> Thanks,
> 
> Rob Stuart-Vail

Rob.

Make sure the hammer flange rail is tighty secured. Loosen the wippen
rail so that there is some tension on it but so there is movement
available. Measure from the center of the hammer flange center pin to
the center of the wippen flange center pin.  Move the wippen rail in or
out to the correct 112mm dimension by wedging it with a wide blade one
way or the other. Tighten the screws on the wippen rail and recheck. 
They have a habit of creeping. Do both ends first and then check the
middle.  If things have gone well the middle will be ok. Sometimes is it
a help to have someone else helping to hold the ruler.  Be careful in
your measurements and it will generally work easily.

Steve Grattan