Murph the dealer told me just change engine oil and filter, take out air filter and bump it a few times , grease the fittings . Of course I keep radiator screen clean and the normal things . Manual starts talking about hydraulic filters after 150 hours. This is my first new tractor and was trying to follow the manual . I always serviced my others once a year and changed hydro oil at 500 hours , also my first non Deere tractor