First post for me. I just purchased a Max 25 HST with 780 hours. When checking the tractor after getting it home I noticed an area on the trans that appeared to be a filter location. It was filled with dirt and gunk. After spending time off and on for days I still haven’t figured out what goes there. It is in the center under the rubber cover near the seat as pictured. I cleaned it all out and stuffed a shop towel in there for the meantime.