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the Back of the MAchine And they sometimes Can be fun to do but it sounds Like Wiring Problems the shaft is gettin worn some to be replacing them again How Many Hour,s Does It Have ?Be Lookin Into Checkin the Shaft for were Wood Be My Guess
I'm getting reference that it a Gentron GG3500 which has brushes and an AVR.
With producing some voltage indicates that rotor is still partially magnetized at least. Note some will cost nearly as much as replace to whole generator.
Common Problems and solutions
Demagnetized rotor. Re-initialize
Bad brushes. Replace
Glaze contact rings. Clean
Shorted or open rotor. Replace
Bad AVR. Replace
Bad field supplying the AVR voltage control voltage. Replace alternator stator.
No wiring diagram available from Briggs. Try re-magnetizing the rotor. No AVR or Capacitor listed in the parts list.
Disconnect the wires to brushes ( pay attention to the order) and apply 12vdc to brushes. Positive goes to brush closest to the bearing. Start the generator and check for output. If output is normal run the unit a few minutes to ensure re-magnetization then shut down normally. After shut down disconnect the 12 vdc source and re-install the previous disconnected wires. Now re start the generator and test for output should be okay provide there is no problems with the alternator. If no output during the above re-magnetization then your rotor windings my burned out.
One consideration is how many circuits and how much total wattage is being used when the generator is in service.
"Gas Powered Generator GG2300 2300 Watts Surge 2000 Watts Continuous Output 10 Hours of Run Time at Full ."
This is a relatively small generator with 2000 watts output, so the problem may be that the generator can not handle the wattage demand. You can get a pretty good estimate of the wattage demand by adding up the wattage of everything , all lights, appliances, etc that's being powered by the generator. If the total wattage is greater than the output of the generator (2000 watts) then the generator is too small.
Check the rotor rings for cleanliness, they should be shiny, check the brushes and the capacitor, located in the end of the alternator bell housing cover
sounds to me like a grounding issue. I would check all my ground paths and look for poor connection or corroded contacts, broken or almost broken wires etc. Hope this helps :)
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