How to Polorize the Ford Tractor Regulator | It Still Runs How to Polorize the Ford Tractor Regulator and burn out the wiring circuit. Any repair person who has changed or disconnected the wires to the regulator, generator or alternator, needs to take a moment and polarize system. Momentarily touch the battery wire with the generator wire, or the armature wire, depending upon the letter I need a wiring diagram for a ford 3000 tractor approx 1973 Dec 19, 2012I need a wiring diagram for a ford 3000 tractor approx 1973 - Answered by a verified Technician I have a Ford 3000 diesel tractor with a electrical system problem. The charging system is not charging. FARM TRACTOR I have a Ford 535 tractor with a 333 diesel engine. I need a wiring diagram for the dash and engine.Hi my name is XXXXX XXXXX I am a Volvo Construction Equipment expert, I would like to try and assist you with your question. I have some old ford..Okay I did have manual for this model. Here is the information you requested, I hope it has what your looking for. Thanks, Dan.see if you can read this one better, thanks dan. Attachments are only available to registered users. Register Here Attachments are only available t..