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Harry Ferguson Tractors Discussion Forum
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still confused

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1948jr

07-11-2018 19:02:17




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some say polarize a regulator, others say no just polarize a generator. someone set me straight with instructions . thanks




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Steve@Advance

07-11-2018 20:35:08




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 Re: still confused in reply to 1948jr, 07-11-2018 19:02:17  
You are polarizing the generator, not the regulator.

Any time a generator has been serviced, or replaced, or the vehicle has been stored for an extended period, the battery polarity was reversed, the generator must be polarized.

What polarization does is establish a residual magnetism in the generator which matches the polarity of the system.

Speaking of polarity, the original regulators used to be specified as positive or negative ground. Not so anymore. Reason was the difference in alloys in the contacts was used to get the longest possible life from them. Now they use cheaper, nonspecific alloys. Saves a few pennies, reduces stock on the shelf.

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rustred

07-11-2018 19:51:12




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 Re: still confused in reply to 1948jr, 07-11-2018 19:02:17  
its the same thing.take a piece of wire and touch battery terminal to armature turminal for a slit secong. you will see a little spark. thats all to it. with tractor not running.
do this right on the regulator.



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rustred

07-11-2018 21:47:16




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 Re: still confused in reply to rustred, 07-11-2018 19:51:12  
yes, its the generator you are polarizing. i was saying that it can be done at generator or regulator.simplist is at regulator.



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