Poor thing got stuck in generator position and couldn’t go back on line… the problem only became apparent watching the mechanism cycle.
ignore the fact that I say “short of the limit switch”, it should have been “final position”. whatever. brain cheeze.

The limit switch was getting pressed early, causing the robot arm to stop moving with the breaker juuuust on the edge before actually closing. The reason for this was that the locknut got loose on that screw that activates it and the screw backed out a bit.

I readjusted it and tightened the nut. I then used some of the same nail polish I’m wearing in the video on the threads to keep it from backing out again.

Then I sang to it.

Rock over London, rock on, Princeton. Exxon: Put the tiger in your tank!