Before performing any maintenance or repair, be sure to review your chainsaw's owner's manual and follow its directions carefully. When operating your chainsaw, always wear ear protection, safety glasses (a.k.a. safety goggles) and heavy-duty gloves. Cover your arms and legs with thick clothing. Wear rubber-soled shoes. Keep your children and pets inside your home, as wood bits and other debris can be propelled at high speeds, creating a very serious safety concern.