Kraig McConaughey, larry andreo,
That's what I originally said.
Monday, July 13, 2009 - 04:10 pm:
Very basiclly this seems true. But it's the way the units are externally wired and not because they are totally different from other generators.
If your starter generator has two wires on the A terminal (the one from the starter solenoid) here's what's going on. The two wires are 1.) battery voltage from the solenoid. And 2.) the generator wire. When you start the tractor you get the battery voltage applied to the generator wire and it should be polarized as it starts.
If you have only one wire on the A terminal it is the battery voltage from the solenoid. The generator wire on there tractors is connected to the solenoid where it gets it's battery voltage when the tractor starts. Thus making it appear that they are self polarizing. And depending on how you want to look at it maybe they are. But don't assume they are and that you will never need to polarize yours.
That's what I originally said.
Monday, July 13, 2009 - 04:10 pm:
Very basiclly this seems true. But it's the way the units are externally wired and not because they are totally different from other generators.
If your starter generator has two wires on the A terminal (the one from the starter solenoid) here's what's going on. The two wires are 1.) battery voltage from the solenoid. And 2.) the generator wire. When you start the tractor you get the battery voltage applied to the generator wire and it should be polarized as it starts.
If you have only one wire on the A terminal it is the battery voltage from the solenoid. The generator wire on there tractors is connected to the solenoid where it gets it's battery voltage when the tractor starts. Thus making it appear that they are self polarizing. And depending on how you want to look at it maybe they are. But don't assume they are and that you will never need to polarize yours.