Posted by Texasmark1 on May 30, 2018 at 04:05:50 from (184.20.226.158):
In Reply to: Bush Hog gear box posted by TBA on May 29, 2018 at 18:53:00:
Unless an oil sump is hermetically, sealed, the higher the differential temperature and humidity, the more the opportunity for water entrapment possibility....
Don't know the technical term, but on ingestion, as the box cools, it brings in the moisture as air + water at some percentage. When the box warms up, internal air expands, and vents, a lot of the air will vent before you get to the boiling point of the water.....a temp high enough to cause the water to vaporize and exit with the air.
Solution is to drain periodically, or run hard for a time to get rid of it. On not venting, and worn seal on a closed box, below the level of the oil usually will leak oil. So you're zapped regardless of which way you go.
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