It finally dried out enough to use the 2025R Gen 2 tractor to mow without tearing the yard up. Used the GM1060 rear finish mower I purchased as a 2015 model year demo unit from dealer late last year. Mower had to sit outside all winter unfortunately. Needed to move it to get to something else so thought what the heck lets mow with it while attached to tractor. Run it about 40 minutes and when done parked rig in front of shed to give everything a shot of grease today before parking the mower till next time. All went well until taking plug out of gearbox to check level. Got a gush of oil the color of coffee with lots of creamer in it. Guessing water contamination. Pulled cover and used a suction gun to remove all the old oil that I could. Then stuffed paper towels inside to soak up what was left. Not sure why the designer did not think a drain plug was needed. Manuel says when working on gear box to turn gearbox upside down to finish draining. Did not think that a good idea with gear box attached to mower.
Going to refill with fresh oil of course and reaseal the cover with permtex as called for. Then mow a time or two and siphon all that oil out and refill again. Everything inside gear box looked good. No metal shavings or rust that I could see anywhere. Does this seem a good plan of action or should I be doing something more or diferent. No idea how water got into gear box but will store with a cover of some sort over that gear box from now on!