I have a Vandercook 219. Not sure but I think NS (1957). It prints like a dream, or did until this afternoon.
The rolling cylinder suddenly started to hang up about 3 inches into the forme. So the first few inches of the forme prints, but then the cylinder meets profound resistance, as if something is lodge in a gear somewhere. I have checked everything I can see easily and can’t figure it out. When I flip the trip switch, it rolls clean to the end of the bed.
Is there some issue with the linkage? The foot lever still lifts the grippers, but I do hear an off click I have never heard before about one half turn into the run, several inches before I hit the forme.
I looked in the Moxon book but the possibilities discussed there seemed to be for other models. (Broken spring, etc).
Any help would be deeply appreciated.