Folks,
Thanks for the many replies and help.

It definitely seems odd that I grease the thing and it crashes. I did
not use lithium grease as I have no manual for this thing. Hard to
believe a type of grease would cause this though.

There are no up/down adjustments other than the limit switches. I
might try to wipe all the grease off the screw this weekend and see
what happens. The thing is 13 years old so I wouldn't expect it to die
but it's probably not worth investing a whole lot of time into either.


I appreciate all the help.
Cheers,
cc