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Tractor Talk Discussion Forum

over charging

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Marvin

06-12-2004 21:16:47




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I have a oliver 77 that has been converted to 12 volt that is overcharging the battery. I am guessing that the voltage regulator needs adjusted. I have never done this can anyone tell me how this is done. THANK YOU




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Ron

06-12-2004 23:13:23




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 Re: over charging in reply to Marvin, 06-12-2004 21:16:47  
You have not provided enough information.

Do you have...

1) Generator (with voltage regulator)
2) Alternator with internal regulator
3) Alternator with external regulator

If you have an external voltage regulator, does the cover have screws (adjustable) or rivits (non-adjustable).

Also, what makes you think the battery is being overcharged? Did you measure something in excess of 15 volts at the battery constantly with the engine running with your DMM? Are you actually boiling the battery? I think that tractor has an ammeter and not a voltmeter, right?

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Marvin

06-13-2004 11:55:01




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 Re: Re: over charging in reply to Ron, 06-12-2004 23:13:23  
Ron, i have a generator with adjustable voltage regulator. The battery is boiling i have not tested voltage. When running the ammeter stays on charge with battery boiling. I have owned tractor less than a year regulator appears to be recent. Sorry about lack of info i am new to this trying to learn as i go. Thank you.



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Ron

06-13-2004 15:06:31




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 Re: Re: Re: over charging in reply to Marvin, 06-13-2004 11:55:01  
Most likely the regulator can be adjusted by turning one or both of the screws on the pots inside. You'll need a DMM to set the charging voltage correctly, 14.5 volts or so.

If you can't get it to adjust correctly, replace it. They are a lot less expensive than a good battery.



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Jerry

06-13-2004 16:17:52




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 Re: Re: Re: Re: over charging in reply to Ron, 06-13-2004 15:06:31  
If the battery is boiling it can blowup. I have seen them blow and its not funny.



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