IT's attached to a pin that goes all the way through the pump and is held in
place by the houseing on both ends. It doesn't appear to be worn and the
airplane only has about 80 or so hours on it, so wear of the pump or
hardening of the diaphragm seems pretty unlikely (I'm hoping). Someone else
suggested adjusting the pressure-control screw to see if that makes any
difference.

Thanks for the tip, though. I may end up investigating those conditions as
well.

Shawn
"Bushy" wrote in message
...
Where does the handle hinge at? If the hinge pin or housing is worn, it
may
cause stiffness like an old door hinge.

Might be as simple as replacing a pin, or the diaphragm may have gone
hard?

Hope this helps,
Peter