sflem849 said: In my head it seems like even if the battery was dead it should still read 12+ if the tractor was running bc the gen is putting out that much voltage.
Even if the charging system is working properly, a dead or weak battery can pull the generator output voltage down to whatever minimum voltage is required to push current back into the battery.
I don't recommend unhooking the battery on a running engine to see if it keeps running. There are non-destructive tests that can determine the same thing. Measure the voltage at the battery with the engine and all switches off. Measure the voltage again at a fast idle. If the second voltage reading is higher than the first, the charging system is working.
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Today's Featured Article - Horsepower Defined - by Staff. Indicated Horsepower This represents the power developed in the enine cylinder as obtained from the pressure in the cylinders. This is pressure obtained from an indicator which shows cylinder pressures. Indicated horsepower does not represent the actual useful power delivered by the engine. Brake Horsepower This is the actual horse power delivered by the engine to the shaft. It is equal to the "indicated horsepower" less the friction of the engine. It is useful hor
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