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I'm not sure why you are obsessing about an inability to turn the voltage lower than 222 or higher than 260. If anything, the TM states that the adjustment range should be somewhat narrower than that. I forget the exact range and I don't have the TM open at the moment, but I recall that it is...

The VR circuit board actually has many individual circuits. The -12 and -34 plainly tell us that once the diesel engine comes up to speed and oil pressure is sufficient, releasing the start switch causes the VR to take control of the generator and control power production. This is where he has...

I respectfully disagree. Not all VR failures are of the higher than normal voltage variety. I think his next move should be to follow the test procedure on page 8-1 of the -34 manual. This test disconnects only the VR and substitutes a stable, nominal 12 volt DC source in its place. If he can...

Sounds like the AC voltage regulator is malfunctioning and not taking over. John

This is normal for heat-sinked transistors. This is why they are heat-sinked to begin with!! You should see how hot the power transistors get on some of my 12 volt power supplies when under load. John

OK. This is good information to know. I have never owned the 003A, but figured that the extra cylinders would result in higher fuel consumption even at half the generator output as compared to the 002A at full load. I purchased this 002A a couple of years ago from GL with the specific intention...

I certainly agree with your thoughts on the MEP-002A. I picked up a depot rebuilt 002A two years ago. After some minor work, it has served me well ever since. Recently, I began to consider picking up an 003A, or even an 803A, so that I could be sure of adequate power during an outage. One thing...

Who would have thought that my oscilloscope was lying to me when it showed an ideal AC sine wave on the MEP power outputs!!

The field flash diodes and circuitry sound OK. I think you have a problem with the voltage regulator. Follow the guidance in the TM's for checking the VR. John

There are a lot of things that can cause a lack of power generation. You've got to go through the TM. I had a minor intermittent field flashing problem due to an old, cracked 1N4722 diode behind the K1 relay. You must determine if the flashing circuitry is working. If it is, you need to...

I have a bunch of 1500 watt fan heaters and the CEP distribution box when you are ready to load test. John

Geez, I simply take my length of fuel hose, attach one end to the auxiliary intake on the generator and stick the other end into the can or drum. KISS principal. John

A couple of great options on the table here. John

Which is why I use a 6 AWG, 4 conductor "shore power" cable with a 125/250 Hubbell connector. It includes both hots, my neutral and a ground for the frame. John

Paul, Have you had a chance to re-adjust the valves?? John

And it seems to be throwing a LOT of oil up into the air intake at the moment it stalls. John

When using the CEP distribution box, I wire it as a "Separately Derived System", just as the military runs these in the field. John

Ah, you must be the guy who bid over $2500 for the 002 on a trailer. I knew someone was going to be disappointed in their due diligence (or lack thereof). John

My error. I apologize. I completely missed your post from 8/22 where you mention that point. John

I hope you realize that Article 250 covers general grounding and bonding only and can be (and is) modified by more specific NEC Articles. I suggest you go back to your code book and read 702.1, then come back here and report your findings. If you want to operate your generator as a portable and...