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Tool Talk Discussion Forum

Re: Checking voltage regulator

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Author  [Modern View]

10-24-2013 10:46:29

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Quoting Removed, click Modern View to see1965? Should then be 12volt negative ground. In that case, Battery+ goes to Ammeter Negative terminal and ALL loads/gen/VR output(BATT) go to ammeter Positive terminal.

VR ground should connect to generator ground.

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10-24-2013 15:28:39

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 Re: Checking voltage regulator in reply to JMOR, 10-24-2013 10:46:29  
I currently have the amp gauge wired backwards, I will change. If I read your post right the voltage regulator itself (not one of the terminals on the regulator) grounds to the ground terminal on the generator???

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10-24-2013 15:50:50

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 Re: Checking voltage regulator in reply to JOB, 10-24-2013 15:28:39  
I wouldn't worry about re-wiring ammeter unless you see a load indicating charge (instead of discharge). Just connect a headlight bulb or any substantial load to the non- battery side of the ammeter & watch indication.

Yes, on your VR ground question, ground is the case.

If you are interested, I can't tell you how to test the regulator without more equipment that about 99.44% of tractor owners are likely to have available, but by process of elimination, I can tell you how to make it charge without VR, thus proving generator is good (just re-built, so I guess you know it is good) and that problem would then be VR or wiring.

And my procedure does not matter whether it is "A"-ckt or "B"=ckt.
This post was edited by JMOR at 20:29:45 10/24/13 2 times.

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10-24-2013 18:16:30

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 Re: Checking voltage regulator in reply to JMOR, 10-24-2013 15:50:50  
When I picked up the generator from the shop, I was told the brushes were stuck away from the commutator (I think that is the right term) and the bearings were shot. He said it looked like the generator had been out in the weather for awhile. So that is why I am wondering about the regulator. Maybe the inside of that is all corroded up?????

It is easy to change the wires around on the amp gauge. When I was running it I did not see a charge going backwards through the amp gauge.

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