what are these wires for

[nf6x]

Circuit 2 would be the alternator output that charges the batteries. So, if disconnecting that lead at the regulator eliminates the current drain, then it sounds to me like the regulator is bad. I don't know if they're repairable and/or easily found as a replacement part. None of my trucks have the dual-voltage alternator like your HMMWV does, so I don't have any hands-on experience with it yet.

By the way, here's a good reference for what those circuit numbers mean:

M-Series Vehicles Circuit Numbers

 

[hughscpa]

You have been a great deal of help on this one!! So now I need to find a new regulator. Once again, thank you.
Hugh

 

[hughscpa]

Will a voltage regulator from a 100 amp generator work on a 200 amp generator? Please say yes, please?

 

[nf6x]

I highly doubt it.

 

[hughscpa]

They look the same just a different part number. The only thing on the M1113 that is not on the others is the hydralic winch. Could I swap out generators? Will the pulleys swap out?

 

[hughscpa]

They are both C.E. Niehoff. The bad one is a 76761-n3117 and the other is a 76761-n3117 and it is on the 100 amp generator.

 

[nf6x]

If they have the same part number on them, then maybe they're interchangeable. I don't have any experience with the dual-voltage alternators.

 

[hughscpa]

I have a call into the manufacurer on this right now. I should know in the morning.

 

[hughscpa]

Well, I just heard from a rep at C.E. Niehoff. He said my two regulators are interchangable!! So I will give it a try this afternoon and hopefully that will fix my problem.

 

[nf6x]

Great! I didn't think they would be interchangeable. I hope that the new regulator fixes your problem.

 

[hughscpa]

Thanks again for all your help. Hopefully everything will work now.

 

[hughscpa]

We will find out tomorrow if that fhas worked. The Undersheriff took it home over the weekend to see what happens.