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Thread: MEP-802 and 803 Main generator tip.

  1. #1
    4 Star General Guyfang's Avatar
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    Default MEP-802 and 803 Main generator tip.

    The MEP-802 and MEP-803, A1 volt regulators sometimes go bad. When they do, the Stator is often damaged. The troubleshooting diagram tells you to first test the stator. If you find that the stator is defective, naturally, you change it. So after installing the stator, you fire it up and presto! Another bad stator. Why? Because you fixed the symptom, not the cause. So to protect your stator, from a defective A1 volt regulator, and from destroying a second stator, (not cheap) you need to see if your MEP-802 and MEP-803 has been modified. In about 2007 the following PS magazine article was put out. The accompanying Volt Regulator test procedure came from TAACOM. In about 2009 or 2010 the military started to modify all existing MEP-802 and MEP-803's. But a lot never got done. Sadly, I cant find my copy of the Modification, but it follows the PS magazine article almost word for word, BUT it tells you to put a fuse in between Q1 AND Q2 to completely protect your stator from damage by a defective A1 Volt Regulator. This is a simple and cheap insurance for your generator. Later, should you find that a fuse to Q1 and Q2, (Quad Circuit) is blown, you can start on the real problem, the A1 volt regulator, and not have a unservable Stator to boot.


    Testing 5&10 KW VR.pdfPS Mag May07_ 5-10KW VRfuse.pdf

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    Is there a picture somewhere of how this is done? Just curious. I'm sure its not that hard to find.

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    4 Star General Guyfang's Avatar
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    I may have one. Some people, the Army included, took some sheet metal, bent it 90 degrees and mounted it in the back of the control panel. Ran the wires to the TB and that was it. I will see if I have shot. I tossed out tons of stuff when I quit contracting, but still have a laptop from the day.

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    4 Star General Guyfang's Avatar
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    This is the Technical Bulletin, (TB) for this repair/modification: TB-11-6115-741-24

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    Yup - see chapter 5.1 in the TB above for the details
    MEP-831A Governor Controller Replacements for the SLC100, 2990-01-477-1371, 98-19539. https://www.steelsoldiers.com/showth...90#post2233190
    MEP-802A/MEP-803A Remote Start Kits
    https://www.steelsoldiers.com/showth...92#post2233192
    MEP-831A Battery Charger Repair & Repair Kits https://www.steelsoldiers.com/showth...83#post2231683
    MEP-831A Remote Start / Governor Controller Kits https://www.steelsoldiers.com/showth...49#post2245549

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    Thanks for the heads j, I'll check and see if this mod has been completed on my 803. Hoping it has been since it had a Tier 2 reset in 2012.
    MEP-803A w/ Winterization Kit

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    Mine was Tier 2 reset in 2012 and has the modification.
    Last edited by jimbo913; 01-05-2016 at 21:11.

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    Quote Originally Posted by jimbo913 View Post
    Mine was Tier 2 reset in 2012 and has to modification.
    That's good to hear, hopefully mine does as well. Just need a little time to check it out.
    MEP-803A w/ Winterization Kit

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    A friend of mine has one reset in 2010 and he said it has it as well. I think the change came in 08' / 09'.

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    4 Star General Guyfang's Avatar
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    Jimbo,

    The first one I saw was a RESET out of Letterkenny, in 2009, I think. Well done, none of this in line fuse bit. A sheet metal bracket, in the back middle of the control cube.

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