My Neighbor has a Farmall M that recently stopped charging the battery. The story goes something like this (I have not been involved until today)
1. At some time in the distant past it was converted to 12v positive ground.
2. Within the last year, he had the Delco alternator rebuilt. He says it worked fine after he reinstalled it.
3. At some time in the past couple weeks, it stopped charging the battery, showing current on the amp meter, and lighting the warning lamp.
4. He replace the ignition switch and the Amp meter. There were sparks as he was hooking things back up.
5. It starts and runs fine if he charges the battery externally.
I looked it over and drew the picture below. There are three wires not connected
1. The output of the excitation switch. He doesn't think he needs it, nor do I.
2. A wire attached to one side of the warning light.
3. The battery lead from the alternator is not attached. I'm not sure where to put it due to the positive ground.
I've never touched the wiring around the alternator on a tractor before.
Any suggestions?
1. At some time in the distant past it was converted to 12v positive ground.
2. Within the last year, he had the Delco alternator rebuilt. He says it worked fine after he reinstalled it.
3. At some time in the past couple weeks, it stopped charging the battery, showing current on the amp meter, and lighting the warning lamp.
4. He replace the ignition switch and the Amp meter. There were sparks as he was hooking things back up.
5. It starts and runs fine if he charges the battery externally.
I looked it over and drew the picture below. There are three wires not connected
1. The output of the excitation switch. He doesn't think he needs it, nor do I.
2. A wire attached to one side of the warning light.
3. The battery lead from the alternator is not attached. I'm not sure where to put it due to the positive ground.
I've never touched the wiring around the alternator on a tractor before.
Any suggestions?