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  1. K

    Schematic for 802A whole thing

    Depending on the year it may have breaker in the GFCI or a separate fuse.
  2. K

    Gen Set, TM 5-5260, Stock No. 6115-376-7003 from 1953.

    Not sure if you looked there or not yet but there is a forum called Smokestak that's devoted to antique engines, generators and the like. Someone on there had a model almost identical to your set.
  3. K

    Primer Pump Not Coming On MEP 803-A

    The cube versions are available on ebay. Search for "40194 Fuel Pump"
  4. K

    MEP-531a

    You can get just the bowl on ebay. Simply search for "124064-55510 " Many from $10 - $16
  5. K

    MEP-531a

    There are lots of them on eBay.
  6. K

    MEP 831a fuel pump working, not going through injector pump.

    There certainly shouldn't be 40 VDC on P17-11. K8 inside the inverter should only pass thru whats at P17-12. Seems something is afoul inside the inverter. Weird that you measure 0 VAC at the inverters L0, L1, L2 terminals but the set voltmeter is showing 160 but you measure 40 volt at it's...
  7. K

    Generator MEP 803A problem “over voltage”

    You might want to look at this thread --> Overvoltage Some info on what to check when chasing an overvoltage fault.
  8. K

    MEP803A Over Voltage

    I'd suggest checking the connection between the front panel voltage adjust potentiometer and terminals 1 & 2 on the regulator. An intermittent connection there would cause random voltage swings. With the set OFF disconnect the leads to terminals 1 & 2 and measure the resistance bewteen the...
  9. K

    MEP 831a fuel pump working, not going through injector pump.

    Now that you have the correct AC voltage at the ABC terminals on A5 what does the sets AC voltmeter indicate for voltage? Carefully measure the AC voltage between the following terminals on top of the inverter under the plastic cover. L0 to L1 L0 to L2 Is the LED illuminated inside K15 (the...
  10. K

    MEP 831a fuel pump working, not going through injector pump.

    Doug, When measuring the AC voltage at A5 you need to connect the meter probes as follows... First A & B and measure AC voltage Then A & C and measure AC voltage Then B & C and measure AC voltage Let us know what voltage you have at these 3 points. Do you have good batteries installed in your...
  11. K

    MEP 831a fuel pump working, not going through injector pump.

    If K12's LED is off... Here are a sequence of test steps to narrow down where the problem is. 1) Battle Short OFF 2) Connect your DC voltmeters negative lead to chassis ground. 3) Set you meter so it can read DC volts. 4) Start the generator 5) Measure the DC voltage the following points in...
  12. K

    MEP 831a fuel pump working, not going through injector pump.

    First thing to look at is the far left relay inside the panel. This is K12 the fault relay. If the tiny LED inside it is lit then there is a fault and the contactor will not close. Is K12's LED on? Does the Voltmeter show 120 or 240 volts? Let us know your findings. Can walk you thru how to...
  13. K

    MEP 831a fuel pump working, not going through injector pump.

    OK, having 136 VAC at the A,B,C terminals indicates the engine is running at way to low an RPM. You need to re-adjust so that the voltage there is 178 +/- 2 VAC. Adjusting the RPM so you have 178 +/- 2 VAC there sets the correct no-load RPM. This is necessary for the inverter to operate and to...
  14. K

    MEP 831a fuel pump working, not going through injector pump.

    What's the AC voltage across terminals A & B and across B &C on the governor controller? Any voltage showing on the sets voltmeter? Any voltage at the convenience outlet? Which contact on J17 was burnt?
  15. K

    MEP-831 inverter troubleshooting

    Rotors on tapered shafts require a puller to get them off. I had to fab up a puller to pop the PMA rotor off my 831 crankshaft. Basically made it from a heavy piece of plate steel with 3 holes in it. The holes in the plate are not threaded. Large center bolt is a 3/8 carriage bolt with a nut...
  16. K

    MEP-831 inverter troubleshooting

    I designed a special Governor Controller that maintains 60 Hz, restores the %Load function of the load meter for both legs and restores the overload function to open the contactor if either leg is overloaded. Let me know if you get the new gen head and are interested in the new controller.
  17. K

    MEP-831 inverter troubleshooting

    Looks like that one would work and fit. It's almost the same size as the Northern Tool gen head I have in one of my 831's.
  18. K

    MEP-831 inverter troubleshooting

    I've searched lately and haven't been able to find a suitable gen head with the J609B.
  19. K

    MEP-802/803/831 Generator Control & Parameter Monitor by WIFI Demo

    The data on the screen shown above automatically updated at 1 second intervals. The statistics in the table at the bottom of the bottom of the screen are updated every 10 seconds of operation.
  20. K

    MEP-831 inverter troubleshooting

    If the inverter is not outputting power the starter lockout will not function. The inverter output from N and L1 is what powers the coil in K15 the starter lockout relay. Without power from the inverter the starter lockout relay will not function. Looks like you did some good troubleshooting...
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