I was changing my engine oil and filter and I decided to change the front axle oil as long as I had everything out and had already made a mess on the driveway. (The wind picked up suddenly and blew the draining oil stream beyond the drain pan below it.) It was early for the front transmission change (I'm at just over 100 hours) but others have done it this early and found the oil was dirty. Mine was dirty, too.
Everything went as expected until I went to refill it. I put almost exactly 2 quarts in and thought I would check the dipstick before adding more. The oil was already about an eighth of an inch above the top mark. The manual and the specs say the capacity should be 3 quarts. The manual also says: "IMPORTANT: Avoid damage! Allow oil one hour to settle before checking level to ensure accurate dipstick reading. Repeat oil level check after several hours of operation." I checked it an hour later and no change. I let it sit overnight and no change.
Thinking I had a big bubble somewhere, I took the tractor out and drove it over rough ground. I engaged and disengaged the four wheel drive several times. I did clockwise and counter-clockwise donuts on the driveway to create some big sloshing. I'm sure the neighbors are wondering....
Still at the same level. I carefully cleaned the edges of the opening to make sure the oil I was getting on the dipstick was coming from below. I was also very careful to insert the dipstick without touching the edges. Same result. So then, with the cap/dipstick removed, I briefly opened each drain plug in the lower chambers by the wheels. I got a steady stream of oil, no spurting or sign of air. With the bit of oil I removed from each side chamber, the oil on the dipstick was now just over the top mark.
Do I really have a quart-sized bubble in there somewhere? If so, anyone have any ideas on how to chase it out of there?