all of the delco alternators I have put on tractor have been wired with the threaded stud hooked directly to the battery. I then would wire the two wire plug with the number 2 wire looped to the threaded lug. The number 1 terminal on the plug would be the exciter wire and get 12v with the key. It is good practice to have either a diode or a charge light on the exciter wire (number 1) to use up the voltage to prevent the engine from running after shutting off the kill switch. This can happen depending on the switch some can allow voltage to back feed and not only keep the alternator excited but also supply voltage to the coil. The components I have suggested will either use up the voltage (light) or block it (diode) preventing this issue. I suppose your alternator could be a modern type that wires in a manner I'm not familiar with but this should be pretty standard for most units.
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Today's Featured Article - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
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