1997 - Volume #21, Issue #5, Page #34
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Radiator Fan Cools Alternator
Alan Russell, Eckville, Alberta: "I removed the generator on my Deere 4010 tractor and replaced it with an alternator. However, when all the tractor lights were on, the alternator stator got so hot that it would æspit' whenever I touched it with a wet finger. I checked with those æin the know' to confirm that my wiring was correct. Then the problem became clear and obvious - the alternator fan was mounted in front of the tractor's radiator fan, which kept the alternator fan from pulling air forward toward the tractor radiator."Against advise I was given by ætext book' mechanics, I removed the alternator fan and let the radiator fan cool the alternator. Now the alternator runs cool with no problems at all.
"How many tractor-mounted alternators out there are positioned next to the radiator fan so they can't cool down properly?"
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