Zero turn lawn mower maintenance is no more involved than maintenance on a lawn tractor. The oil needs to be changed, the deck needs to be cleaned, blades need to be sharpened and certain points need to be lubricated. In fact, ease of maintenance is such an important feature on a residential zero turn mower that manufacturers design mowers around the ability for homeowners to confidently complete maintenance in their own garages.
With a large variety of zero turn mowers to choose from, homeowners have the power to choose a model that requires as much or as little maintenance as they’re comfortable with.
Here are some of the most common maintenance tips for your zero turn lawn mower.

1. Sharpen Mower Blades. 
   Sharp mower blades have a better cut quality and they reduce the need to mow the same area twice. This saves time but it also assures that the unbalanced blades will not cause equipment damage to your zero turn mower. Anyone with the correct tools can sharpen blades, but you may want to consider bringing your equipment into a service dealer for this maintenance tip.
2. Check Mower Belts.
   A broken mower belt can leave you stranded in the middle of your yard. Make sure to inspect your belts seasonally for signs of cracks or damage. If they show any signs of wear, make sure to change the mower belts before making your stripes.
3. Clean the Mower Deck.
   If your zero turn mower deck is packed with grass clippings, dirt an debris, your mower can be damaged, your cut quality can be affected and you can hurt your lawn. The grass, dirt and debris holds moisture that can corrode bare metal on the spindles and mower blades, damaging them and requiring you to spend money on replacements. It is important to make sure you clean the mower deck after each use of your zero turn mower.
4. Change the Oil.
   Oil changes are a minimal investment that are extremely important to the engine life of your zero turn lawn mower.Always complete an oil change at the intervals recommended in the engine manual. Typically oil changes are based on the number of hours you used the lawn mower. If you cannot remember how many hours, stay on the safe side and change it.
5. Check the Air Filter .
   Checking and replacing the air filter is one of the easiest things you can to do maintain a healthy zero turn lawn mower. Consult with your manual on how to check the air filter. If it is soiled or damaged, dispose the filter and install a new air filter.