Using your Makita 199367-2 18 - inch lawn mower blade is easy. First, make sure your Makita 18V LXT® X2 (36V) Cordless Lawn Mower (XML03) is turned off and the battery is removed. Then, use the one - bolt installation method to attach the blade to the mower. When mowing, drive the mower at a steady pace for the best cutting results. As for maintenance, after each use, clean the blade with a brush to remove grass and debris. Check the blade regularly for any signs of wear or damage. If you notice the blade isn't cutting as well as it used to, it might be time to replace it. Always keep the blade in a dry place when not in use to prevent rusting. And remember, safety first! Don't touch the blade when the mower is running or right after use as it can be very hot.