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Thanks DieselAddict for the advice. I cycled the voltage switch around 30 times and it is working better. Sometimes the voltage between the different phases will vary by around 15 volts. Sometimes the voltage on L1-L2 will show around 240 volts with the Hz dropping from 60 to 58. It seems...

This shows what m-35tom said about moving the board up so that the high voltage arrows (left side of board) are aligned and the voltage confirmed at 416v. The back of the board has a series of copper straps that tie the holes either side of the double rivets together. By moving the board up...

I need the higher voltage to run a 15 hp motor on a compressor. I bought this one for the three phase. Robert

Thanks, I thought the arrows had something to do with it but wanted a more official opinion. As I said in the original post, I have looked through the -10 pretty well but could not get my eyes on it. Robert

I am asking for help in changing my MEP-804A from 120/208 to 240/416 three phase. I have gone through TM 9-6115-643-10 (the one that came with it) and also TM 9-6115-643-24 which covers maintenance more in depth. Attached should be pictures of the voltage reconnection terminal board front and...

I expect you could repair that. I do not know exactly what your machine looks like but it sounds like a Hotsy type hot water/steam cleaner machine. I have two of the American Kleaner MX-1 hot water/steam cleaners. They are very tricky to make work right with all of the interlocks but that is...

I bought my MEP-804a mostly for the three phase power. I have a large air compressor that runs with either a 15hp or 20 hp engine. I may get a 15 hp electric motor to power it, I have not quite made up my mind yet. I also have large woodworking equipment on three phase. So far, my phase...

I did actually think of that. The top of the pump that unscrews and pops up has a square type ring gasket underneath that should seal when screwed down. I made sure to get the top tight this time and it has worked so far. Perhaps before, I did not get it tight enough to seal. Robert

It quit again after the above post. I really can't figure it out and the TMs do not talk about the Zexel mechanical transfer pump, just the electrical ones. I think my main problem lies with the hand pump (pointing at it with pen in a photo above). I took it off and can not see any way to...

I used to use those (for their intended purpose) at my last two duty stations while sitting SOF (supervisor of flying) in the tower. It seems like there was some kind of program on the computer that controlled them but that memory is now hazy. I've been a near dead now for 12 years and...

I took the fuel pump apart and did not see any problems. Reassembled pump and placed back on the engine. I tried to bleed the air out of the lines using the manual pump feature on the pump but did not feel solid pumping action. I used a fuel bulb to draw fuel through the pump and tried to...

My 804a quit running the other day. It sounded like it ran out of fuel, it started to surge and then it died. I first thought that the fuel had been stolen but not the case. I bought this unit recently with 46 hrs on it and had put on around 5 with no problems. As mentioned above, mine has a...

I used my 804A this weekend to run my 208V single phase motor on my MX-2 steam cleaner. I used L1 & L2. Attached is a scan from the TM where it talks about single phase. It does warn to balance the loads to avoid damage. Robert

I ran my 804A this weekend to power one of my hot water/steam pressure washers. It needs 208V single phase so I used L1 and L2. Attached is a scan of the TM that came with the unit where it talks about single phase. It does note that the loads should be balanced when using single phase to...

I just picked up a MEP-804A generator from Ft Bragg this week. It was in a group of 4 that went off with the highest hours 113 and the lowest 46. These are 3 phase only 120/208V 52 amps or 240/416V 26 amps @ 60 Hz up to 15 kW. I went and looked at all 4 before the auction. One had a broken...