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Barry, I better back up here cuz I have ABSOLUTELY NO WIRING DIAGRAMS FOR YOUR TRACTOR. From what your second post says, it sounds like you have a light switch type of Generator Field current control as they have low charge and high charge positions. On those the Generators Field post wires to the light switch NOT any VR. Most of those systems didnt use a Voltage Regulator but instead only had a 2 wire cutout relay with BAT and GEN terminals. HOWEVER, earlier from your post I had the impression you had a Voltage Regulator which has 3 terminals (BAT ARM FLD). 1) IF YOU HAVE A 2 WIRE CUTOUT RELAY: Ammeters LOAD side wires to its BAT terminal and its other GEN terminal wires to the ARM post on the Gen. Then the Gens Field post wires up to the light switch which has a low n high charge position and dead grounds the Field for high charge but grounds it thru a resistor for low charge. 2) IF YOU HAVE A 3 TERMINAL VOLTAGE REGULATOR; BAT up to ammeters load side,,,,, ,,Field to Gens Field post,,,,, ,ARM (or GEN) to Gens Armature post. Regardless if a 2 wire cutout relay or a 3 wire VR, the BAT terminal must always show hot and be wired to the ammeters load terminal. Regardless if a relay or VR, if you dead ground the Gens Field post to case it ought to be in the high charge condition. Sorry I have no AC diagrams so can only lay theory on you, no pin point wiring. John T
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