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Trusty ole M ainta' charging!

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49 Cubber!

06-29-2003 07:48:54




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Pulled her out this morning,guage reads -2-3 amps.Where do i need to hook my voltmeter up to check if its the regualtor or generator?It better not be the dadgum generator,I just had it rebuilt and put on a new regualtor as well.I say new heck its been a couple of months since I did all of this and it had been working as little as a couple of days ago.And if Bob Ms diagrams are right,it wired right as well.

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Doug in OR

06-29-2003 15:20:22




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 Re: Trusty ole M ainta' charging! in reply to 49 Cubber!, 06-29-2003 07:48:54  
I use digital voltmeters at work. Nothing but them. Mine is calibrated to the third decimal place, but I never need that kind of accuracy. Digital or analog, either works well for me. Anyway, do this: remove the field wire from your generator. Put the negative lead of your meter (I am assuming you are using positive ground) on the "ARM" terminal of the generator, and tie the other lead to a solid frame ground. Now, with the engine running, short the "Field" terminal on the generator to ground. The meter reading should go from 6 volts to something greater than 7 volts.. possibly as high as 14 volts. If this part works, your generator is fine. I would suspect the regulator is the culprit.

The above assumes you are wired correctly and have no wiring problems. Wire problems at the terminals can be a problem - and hard to find.

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Steve - IN

06-29-2003 11:23:13




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 Re: Trusty ole M ainta' charging! in reply to 49 Cubber!, 06-29-2003 07:48:54  
Cubber,
If it better not be the generator, the regulator has got to be the prime suspect. The B or Batt terminal on the regulator should read the same voltage as the battery. The F terminal should have a voltage. If it has no voltage, you've found the problem. Here's hoping it's that simple - and it's not the generator. Also, digital meters can make you crazy with false readings on old systems. Better to use an old Simpson or some brand of analog.

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