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Read articles →This is a narrow, single-task DIY video: an owner doing the 50-hour mower deck gearbox oil change on his BX2380 (model RCK60B23BX), following the manual's schedule. It shows warming the oil, pulling the deck, draining with a homemade angled setup, checking gaskets and washers, using SAE 90 GL-5 gear oil, leveling the housing to fill correctly, and greasing the deck zerks. Useful for owners specifically doing this exact maintenance task.
Posted by the starastronomer channel, an owner documenting hands-on maintenance on his own BX2380.
The manual calls for SAE 90 gear oil with a GL-5 rating, which the owner got from his Kubota dealer.
The manual says to do the first change at 50 hours, then every 150-hour interval after that.
Use a two-foot level on top of the housing in both directions to confirm it's level before filling through the inspection port.
The owner inspected the fill plug gasket and drain/inspection washers, found them fine, and reused them, planning to replace at 150 hours.
