Posted by Bob M on March 07, 2009 at 18:21:18 from (74.74.133.120):
In Reply to: Re: charging question posted by kennebunksawmill on March 07, 2009 at 15:29:28:
In your photos I see a voltage regulator hanging beneath the generator in the center image. When working properly the regulator will automatically control both charging voltage and current. So there's no need to adjust the 3rd brush on your tractor.
And your reading of 8.3 volts is indeed high - 7.5 volts is about the maximum you should see. Consequently I'm gonna suggest it's time for a new regulator. (Regulators are fussy to adjust even with the right equipment. The best strategy is simply to replace a bad regulator with a new one.)
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However before you replace the regulator, do you happen to be you using a DVM (digital multimeter) to take your voltage readings? Many cheaper DVM's get confused by the "noise" in generator/regulator systems and will display false readings. Unless you're using an industrial quality DVM (Fluke, etc), try taking your voltage readings again with an analog VOM - you may find the charging system is actually working fine and it's the meter that's wrong(!)
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