If you are working with a common 10SI or 12SI Delco 3-wire alternator, they need to have the "excite" current to their #1 terminal shut off when the machine is not running, or the battery will be drained.
If the machine has battery ignition or is a diesel with an electric fuel shutoff, the "excite" circuit can be set up so it's fed from the "ignition" switch, so it's "OFF" when the engine is "OFF".
If the engine has a mag, a DPDT switch can be wired so that it "kills" the spark and shuts off the "excite" circuit at the same time.
An alternative is to use a 2-pole N.O. oil pressure switch so the "excite" circuit is only powered while there is engine oil pressure (engine running).
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Today's Featured Article - Show Coverage: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
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