Some of the wiring had been switched over the years and we are having a hard time helping him correct wiring problems. Local IH dealer was able to provide the generic diagrams from their manuals, but their diagrams show a 3-lug regulator mounted on the top of the magneto. This tractor has a 3 lug cutout relay (I think) on top of the generator.. The Farmall Cub 12 volt wiring diagram provides a visual representation of the wiring connections for the various electrical components of the tractor. It covers important elements such as the battery, starter, distributor, ignition switch, lights, and more. By following the wiring diagram, you can easily identify the appropriate wires and.
Below is the Cub LoBoy 154 operator's manual, it has lots of info about operation, maintenance, and lubrication. The experts on here recommend people read the operator's manual. There is a table of contents on page 1, and the index is on pages 58, 59. There is electrical system info starting on page 21. The wiring diagrams are on pages 28, 29, 30.. First off, in case ejensen doesn't have his wiring question completely answered, here is the applicable diagram from the ATIS Cub FAQ. Now, on to the question about what the "L" terminal contributes to the whole system. Rvirgil came up with the right diagram. I am inserting an equivalent diagram from GSS-1310 (stored on Rudi's Cub manual server).