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How to recharge a cub generator magnets

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bill

07-03-2001 19:11:02




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just finished restoring my cub tractor only to start it and find it doesn't charge. traced the problem to the generator. after tearing down the gen. and inspecting all, I put a screw driver to magnets inside and they don't draw the screw driver to them. is there a way I can recharge them myself?
thanks, Bill




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Red Dave

07-04-2001 07:34:11




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 Re: how to recharge a cub generator magnets in reply to bill, 07-03-2001 19:11:02  
Gene b is right, there are no permanent magnets. It relies on residual magnetism to get generation started. More electrical current, more magnetism and vice-versa. You lost any residual magnetism it may have had by disassembling the generator. Like he said, get a shop manual, put it back together and follow the directions in the manual to flash the field (some call it polarizing). If that doesn't work, check out the cut-out or voltage regulator, whichever you have. If that doesn't work, take them both to a good starter/generator shop and have them go over it. The generator can be rebuilt if it needs it. Cut-outs and regulators are available at most tractor parts suppliers.

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gene b

07-03-2001 21:20:37




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 Re: how to recharge a cub generator magnets in reply to bill, 07-03-2001 19:11:02  
there are no magnets in a generator if grounding the field and it doesent charge the gen is bad what polarity are you trying to use are you wired up correct better get a shop manual and go from there when you find the magnets let us know there are fields and an armature and brushes depending on the year CUB you have it is 6v pos ground unless you have a newer one that is 12v neg better find out what you have before you burn it up

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John

07-04-2001 05:30:51




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 Re: Re: how to recharge a cub generator magnets in reply to gene b, 07-03-2001 21:20:37  
If the generator is removed or disconnected from the regulator it must be repolarized. Have you done this?

John



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