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The Resistor R1 Ray is referring to is on the sub-assembly A4. The Battery has nothing to do with it. This is a current limiting resistor and excess heat wear indicates a problem with exciter coil itself. The exciter coil is terminated on TB3-5 P67B16 and TB3-6 P60G16 Remove both wires from TB3...

@Ray70 so far so good, however the DC Resistance of the Exciter Stator Coil is 36 Ohm…… Peter

Yes Ray, that’s correct, the TM was written when the only DMM’s where made by HP and Tektronix as 19” Rack mountable bench test equipment weighing in at a whopping 100 pounds….

@Ray70 it is part of the exciter / VR circuit and usually that indicates a excessive current draw, most likely by VR Board. I would check the exciter coil first for resistance.