Try your battery cable spark test by removing one alternator cable at a time. First remove the two wire plug at the alternator, then check if the bat cable sparks are gone. If the alternator is the type that has the side plug with red wires attached in Bob's picture, make sure that only the one marked #1 on the case, has power when the switch is on. With age and weather, those alternator plugs get rotten and allow the plug terminals to pull out of the plastic, so it is easy to get them on the wrong terminal. If those wires are reversed, it will drain the battery. Any auto parts store has new replacement plug kits for around $2. Replacing it protects your tractor from battery drain or electrical shorts /fires from the alt terminals touching the alt case. If the alternator has the rear plug as shown in Bob's lower picture, a battery drain can be a bad external regulator under the steering column base, remove the cover plate right at your feet level.(remove the 4 wire plug from the regulator and see if the bat cable sparks are gone), if so , regulator has stick field relay points.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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