Two ways of "exciting" the alternator on a mag equipped tractor work pretty well. 1 way is to replace the mag kill switch with a DPDT toggle switch. You wire one side of the switch so it grounds the mag when the bat handle is down and opens the battery to excite (#1) alternator wire with the other side of the switch. When the switch bat handle is up, it ungrounds the mag and connects the alt excite wire to 12V power.
2 Another way is to put a normally open, two terminal oil pressure switch in an engine oil pressure port so it connects the alt (#1) excite wire to battery power only when the engine is running and has oil pressure. With either setup, you do not need to turn on / off another switch to excite the alternator, so little chance of forgetting and killing the battery.
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Today's Featured Article - Talk of the Town: What's in Your Tractor's Toolbox? - by Staff. This recent discussion on the Tractor Talk discussion board here at the on-line magazine drew so much response and proved to be so interesting that we wanted to share it with you here. The names of the people participating in the discussion have been left out to "protect the innocent" (to quote a once-popular television series).
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