Re: alternator conversion draining battery.

Posted by john in la on May 26, 2007 at 21:12:12 from (65.6.119.90):

In Reply to: Re: alternator conversion draining battery. posted by Randy in SW Pa on May 26, 2007 at 09:12:57:

Yes....... You need to have switched power to the coil and alt. So one side of the switch needs power 24/7 and is hooked to the battery; battery side of starter relay; ect. Any where that the battery + cable hooks. The other side of the switch gets hooked to the + side of the coil to provide power here and to the field plug on the alt to give it power.

To kill the tractor you turn off the toggle switch cutting power from the battery to the coil. This is where a lot of people have problems because when the tractor is running the field post of the alt will put out power and since the coil is hooked to the same side of the switch the tractor will keep running even with the switch off. This is why we must install the diode in the alt wire. It allows you to supply power to the alt to get it to start charging but does not allow power to backfeed to power the coil when the switch is off.

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