I would imagine an A could idle for literally days on a tank of gas.
An alternator needs RPMs to charge effectively, though. Cars normally idle at around 1000RPM, while an A is more like 450RPM. Full throttle for an A is barely off idle for a car.
I would recommend a bigger alternator, like a 105 Amp, and a way to spin it faster with the tractor at idle. Since the pulley on the alternator itself is about as small as it can get, all you can do is go bigger on the crankshaft, or introduce another multiplying pulley in between. What I mean is two pulleys connected together on a common shaft. Crankshaft drives the small pulley, big pulley drives the alternator.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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