1) Change oil in Spring (10W30)
2) Sharpen edges of blade (again in August) or every 20 hrs of use
3) Use scraper to remove clumps under the deck of mower, then rinse clean after each use.
4) To keep weeds and grass from starting in beds, never blow lawn clippings into beds. Run the mower so discharge is away from the bed.
5) Change up the pattern of grass cutting every month.