Us tractor guys are smart. Nice work figuring it out yourself.
Thank you. I really struggled with the wiring (along with everything else). I had a missing fuse that had 2 dangling blue wires, panel lights that were missing or disconnected, a plugged up oil pressure sending unit that caused another dangling wire, 3 disconnected wires under the seat that I have forgotten where they attached, headlamp switch that did not work, turn signal switch (the subject of this query) bad, 2 headlight wires switched on the grill mount, dead flasher unit, broken front turning signals that were replaced with generic lights from India that the tractor had 4 wires going to and only 2 wires on the light, and so on and so forth.
It was an epic struggle for my limited skill level, but all the wires are attached to something, and all lights come on and flash when requested. Even the battery lift plate tie downs were missing that I machined some short lag screws down a little and epoxied an aluminum rectangle on top to make them turn. And the shift knobs were gone, so I got $3 knobs that would fit a MF 230 and drilled and tapped a metric thread to fit this MF 231. Otherwise, the factory lift plate screws were about $50 something each, plus the replacement knobs were about that much as well, each. Anyway, I brought this tractor home to work on it over the winter and I have been diligent in working thru all the problems.
During the summer I had replaced all the fluids and filters and worked thru water in the transmission, worn out fuel cutoff and lift pump, and broken glass filter bottom. By the time I would discover a broken part, order it, go down and install, it was a long time. so, I had to find a nice young man to come over and purge my fuel line and get it started. I promptly did what I needed to do with the tractor and brought it home. I was done with commuting because there was so much that had to be done and cold weather was upon me.
Oh, and I am a UT grad from 51 years ago. We rolled then! I think one of the best games I attended was when Bear Bryant brought an undefeated team to Knoxville and we won something like 7-0, derailing their championship season hopes.