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  1. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    Oh, here's that pic again. Yep. I did that. All $95 of it.
  2. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    So if I may summarize. And I may, since this is a monologue at this point. 1. I failed to install the jumper on the VR between T3 & T4. This is required if your input voltage is 120vac which mine was. Well 107vac, close enough. So for those of you conversant in the TwitterVerse, that was a...
  3. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    This next photo graphically illustrates the Second Thing I Did Wrong. Besides getting out of bed today. If you refer to the photo directly above, you will notice on T24 AKA L2, there are two smaller wires in a red connector and another wire underneath in a blue connector. All three of those...
  4. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    Notice that I have helpfully labeled the terminals in the photo for VR1 with the correct terminal numbers. The second row of numbers are the corresponding terminal labels for a Newage Stamford VR. Well except for the ones I labeled POT. No, not the Mary Jane kind of POT, but rather the...
  5. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    Here is where things really start to go wrong. In the photo below of the installed VR, notice that there is no jumper across pins 3 & 4. But that's not all that's missing.... -or But Wait! There's more!!!
  6. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    One of the things I did wrong was I didn't install a jumper between terminals 3 and 4. It wasn't stated anywhere in the manual that came with the VR what that jumper was for. But if you look at the genuine manual, it states that the jumper must be installed if the voltage across L1 & L2 is...
  7. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    Newage Stamford does publish a really good manual on THEIR voltage regulator that the Chinese knockoff. The knockoffs are pretty faithful to the original design. Here is the manual that has the information you need. Just for clarity, I have uploaded both the good wiring diagram and the crappy...
  8. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    I read the entire TM for the MEP-701a. It was like reality TV. Based on the actual generator, but partly fiction. All the same, you do need to read it. TM 5-6115-615-12 The wiring diagrams, somewhat useful, but partially fictional, are on pages 4-64 and 4-94 You have to use both of those...
  9. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    So I brought the generator home and proceeded to scour the internet for clues on how to fix or replace the VR. In retrospect I would have been better off to just buy a new replacement military spec VR. This project would have been long ago done. I learned something very interesting while...
  10. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    Originally I thought it would be less trouble to just have a generator shop fix it. So I went and talked to them. All of them in Oregon. One shop was really nice, Battin Power. They did say that the only way they could guarantee an outcome was if they replaced all the generator controls with...
  11. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    I think the damage was already done. When I hooked it up again with a certain 120vac input and fired it up. there was flames and smoke out of that transistor. The picture above is after I spoke to you.
  12. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    So I bought a generator trailer at auction, one of the gennys worked fine, the other one didn't make any power. The military spec replacement VRs are a little tough to get and expensive. I have seen many mentions here and on Smokestak of using a Stamford Newage SX460 clone with good results...
  13. Beerslayer

    How NOT To Replace The Voltage Regulator In Your MEP-701a

    Yep. This is the tale of an Epic Fail. As it is hard to caption photos on this forum, I will break up the posts a bit. First, the end result.
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