Follow the instructions outlined in your owner's manual when sharpening the chain. If you do your own sharpening, use the proper tools. Wear gloves or use a rag over the chain to protect your hands from the sharpened cutters. Correct chain tension . To assure good cutting action and a long chain life, check chain tension.
All chains stretch with use.
Most of the stretch occurs during the first half hour of operation. Follow the manufacturer's recommendation on chain tension. Proper lubrication . Lubrication will prolong a chain's useful life. Remember that automatic oilers need an extra squirt of oil occasionally.