Using your Makita E - 00240 saw chain is easy. First, make sure it's properly installed on a compatible Makita chain saw. Check that the chain tension is correct before you start cutting. When cutting, hold the saw firmly and let the chain do the work. Don't force it. For safety, always wear protective gear like gloves and goggles. As for maintenance, regularly check the oil holes to ensure proper lubrication. Sharpen the chain when it starts to cut less effectively. Use the top - plate filing indicators to make the sharpening process a breeze. Also, store the chain in a dry place when not in use to prevent rusting.