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farmall cub charging woes

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glenn at the fa

03-10-2005 19:22:06

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I have a 1951 farmall cub with a 6v pos ground charging system, voltage regulator, not a cut out relay. the generator was just rebuilt and the regulator tested, it bench tested fine, i installed everything, polarized the regulator, and started the tractor, it charged intermittently then quit. if i jump the field on the regulator to the battery positive (positive ground) it charges. is the regulator bad ? the wiring all seems good.

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El Toro

03-11-2005 09:16:46

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Re: farmall cub charging woes in reply to glenn at the farm, 03-10-2005 19:22:06

Bob Melville has a flow chart for troubleshooting
charging problems on generators and regulators. I should've had this years ago. Try this web site:

http://albums.photo.epson.com/j/ViewPhoto?u=4001561&a=30065733&p=63426275

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captaink

03-11-2005 08:41:43

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Re: farmall cub charging woes in reply to glenn at the farm, 03-10-2005 19:22:06

I have seen where the regulator will develop a bad ground connection. Try grounding it using a jumper from the positive side of the battery (or ground) to the regulator body somewhere. If it starts charging, look for rust etc between the regulator mount and where it mounts to. If it doesn�t charge with the jumper on, then the regulator is bad.

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captaink

03-11-2005 08:41:33

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Re: farmall cub charging woes in reply to glenn at the farm, 03-10-2005 19:22:06

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Bigdog

03-11-2005 04:55:08

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Re: farmall cub charging woes in reply to glenn at the farm, 03-10-2005 19:22:06

With the field grounded, the regulator is out of the circuit. So it sounds like you are correct, the regulator is not working.

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