I have an Allis Chalmers CA Tractor that I am trying to trouble shoot the charging system. It has a 6 volt, 3 brush generator with a cut-out relay mounted to the generator, with one wire going to the light switch. I bought a new light switch, it has a resistor and a fuse on it. I have a wiring diagram that shows the wire from the generator going to the resistor lug on the light switch, it shows first
position-low charge, second position-lights on, third position-high charge. With it wired as per wiring diagram it doesn't matter what position the switch is in the generator overcharges. I put a volt meter on the battery and it reads 8 volts. The amp gauge reads 12 amps. What would cause it to overcharge and how can I fix it?
position-low charge, second position-lights on, third position-high charge. With it wired as per wiring diagram it doesn't matter what position the switch is in the generator overcharges. I put a volt meter on the battery and it reads 8 volts. The amp gauge reads 12 amps. What would cause it to overcharge and how can I fix it?