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Alternator on a 300 Utility

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Mike J.

11-24-2003 14:50:38

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I finally installed an alternator on my 300 U. I ended up using a newer style Delco, and it's case is almost exactly the same as the generator that I took off. A real nice fit under the hood.

Now, the internal voltage regulator was fixed as you guys described.

I got the positive wire going to the main terminal on the alternator. I also grounded the alternator as well. I was told to run a wire from the field terminal on my old voltage regulator to the positive terminal on same regulator - to serve as a bypass.

One last concern is hooking up my amp meter. Do I need to run a positve line from the amp meter back to the positive side of the old regulator?

If I am wrong on the hook ups, please let me know. Thanks for all your help.

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Bob M

11-24-2003 16:30:55

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Re: Alternator on a 300 Utility in reply to Mike J., 11-24-2003 14:50:38

My advice: Take that old regulator off and throw it away! It's only gonna cause you confusion sometime later on...

Anyway the hot wire from the ammeter BAT terminal should go to directly to the ammeter + post. All the tractor accessory load wires (ignition switch feed, light switch feed, etc) should go to the ammeter + post too. The other ammeter post should connect direct to the battery + terminal (this can be via the starter switch "hot" terminal).

Punch below for a diagram that may help...

alternator wiring

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Mike J.

11-25-2003 11:17:38

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Re: Re: Alternator on a 300 Utility in reply to Bob M, 11-24-2003 16:30:55

Thanks for the advice. I appreciate the wiring diagram.

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