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Farmall & IHC Tractors Discussion Forum
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Polarizing a rebuilt generator

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Ed S

04-22-2008 10:05:54




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I cannot remember which wires you touch to do this.
The SA is not charging right. It is setup on the 6 volt system.
Thanks,




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Ed S

04-22-2008 13:58:35




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 Re: Polarizing a rebuilt generator in reply to Ed S, 04-22-2008 10:05:54  
We have a cutout relay. So we go from the Arm on the gen to the batt on the relay?



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Janicholson

04-22-2008 14:20:49




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 Re: Polarizing a rebuilt generator in reply to Ed S, 04-22-2008 13:58:35  
yes, Jumping across both terminals on the relay is the same. JimN



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Ed S

04-22-2008 14:37:37




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 Re: Polarizing a rebuilt generator in reply to Janicholson, 04-22-2008 14:20:49  
Do not seem to see any movement onthe amp guage.
Do I jump it while it is running? I have done it while not running.



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Janicholson

04-22-2008 14:45:04




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 Re: Polarizing a rebuilt generator in reply to Ed S, 04-22-2008 14:37:37  
Tractor off, battery good and connected, Amp gauge good, Battery voltage found at the connection going from the cutout to the amp gauge.
If you then jump from that terminal, to the other on connected to the Armature (big terminal on gen) it should spark. Not bad, but a solid spark. If it does not spark, the generator is open. This means it is not connected to ground through its frame, or the windings are internally open, or the brushes are not in contact with the armature.
Measure the resistance of the Arm post on the gen to ground, it should be almost no resistance, less than an ohm. If more, the gen needs to be checked out internally (possible trip to the store to test it. JimN

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Ed S

04-22-2008 14:49:08




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 Re: Polarizing a rebuilt generator in reply to Janicholson, 04-22-2008 14:45:04  
Thanks a lot, Will start trouble shooting.



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Bob M

04-22-2008 10:48:01




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 Re: Polarizing a rebuilt generator in reply to Ed S, 04-22-2008 10:05:54  
Ed - Momentarily jumper the BAT and GEN terminals at the regulator.



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