200amp Dual Voltage 28/14v Alternator with 12v Accessories Question

[Coug]

Hello I am new to the HMMWV world on repairing. I have a 1993 m998 and while driving the lights dimmed out and after stopping would not restart. I tested the 2 main posts and only received 25volts and then it dropped slowly. How do I know if it is the voltage regulator or the actual alternator? Also how do the wires get hooked up to make sure they are in the right place?

Niehoff website has troubleshooting guides to follow and will diagnose what the bad component is.

Yours is the N1225 generator with N3135 regulator.

https://www.ceniehoff.com/Documents/Ctrl_Hyperlink/TG0017B_uid882013200562.pdf

 

[Milcommoguy]

Niehoff website has troubleshooting guides to follow and will diagnose what the bad component is.

Yours is the N1225 generator with N3135 regulator.

https://www.ceniehoff.com/Documents/Ctrl_Hyperlink/TG0017B_uid882013200562.pdf

Seems like a bunch of failures showing up ???

Get ready for the premium bump in pricing, CAMO

 

[Usmcsteve]

Niehoff website has troubleshooting guides to follow and will diagnose what the bad component is.

Yours is the N1225 generator with N3135 regulator.

https://www.ceniehoff.com/Documents/Ctrl_Hyperlink/TG0017B_uid882013200562.pdf

thank you for the quick response I will check into that and let you know what I find

 

[Coug]

Seems like a bunch of failures showing up ???

Get ready for the premium bump in pricing, CAMO

Yeah, my truck is down for a failed regulator right now.

 

[Usmcsteve]

thank you for the quick response I will check into that and let you know what I find

So after doing the diagnostic testing it turns out the alternator is bad. Any suggestions on where to get one ?