I’ve got a Vandercook 4 trip problem. I’ve checked out the other two threads I can find on this topic here, and they don’t quite answer my question. I’ve checked the bolt on the pivot point that is hidden behind the sheet metal, and it seems to be tight.
The trouble is with the lift arm that holds the rod that goes across the press to the trip wedge. There’s a set screw that holds the rod in place on the lift arm, and when I just finger tighten that set screw, the trip clicks into print and trip beautifully – until the screw backs out. If I tighten that set screw any tighter than a loose hand-tightening, the lift arm becomes too tight for the lift handle to lift it. Keeping the set screw just hand-tightened only works for so long until the set screw loosens and backs out completely.
Am I missing something? Could this still be a pivot bolt problem even though the trip and print clicks into place and holds, just as long as the set screw is adjusted to just the right “looseness”? I’ve not bent the metal back to access the pivot bolt with a wrench, but I have gotten my fingers in there enough to feel that it seems pretty tight. This is the Vandercook 4 at the Oregon College of Art and Craft, by the way.
Thanks for any help!