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We might have fixed it we will check it on Monday we had some corrosion on the 24 v terminal on the reverse polarity module. the last check on Friday the alternator was putting out little to no amps will run it again on Monday to see if problem has been fixed. Thanks for all the help I will let...

I understand that K11 does not handle the 100 amps do you happen to know where it gets signal from to activate the relay to activate the alternator. Is there another component that might be malfunctioning that is giving the alternator a false reading causing it to stay activated.

The only thing so far we have been able to tell that gets hot is the alternator the old one caught on fire. The new one came with a new voltage regulator. Found the relay in the dash panel that is K-11 Excitation. This is on when the truck is on but don't know what activates it I replaced it...

We did check it with a clamp meter and both 12 and 24 are putting out max amps. We had no load on the truck only the engine running. We checked the wiring and found no shorts. Is there a procedure on checking the reverse polarity relay that will not damage any other electrical component or just...

The dual voltage alternator on my M1078 was working perfectly for months then suddenly burned up the alternator in a 5 mile drive. I checked the batteries, they were fully charged, no shorts and in perfect condition. I replaced the alternator and regulator and it shows perfect 14 volt and 28...