Prepare The Saw Preventive maintenance always pays off with chain saws. Properly sharpened teeth will cut quickly, smoothly and more safely. Check the chain tension and lubrication system for proper function. A clean air filter, good sparkplug, and effective muffler will make for a better running engine, making your work easier and safer. Follow the manufacturer's advice in the operator's manual when making adjustments to the chain or engine. Be sure to wear gloves or cover the chain with a heavy rag when sharpening the saw teeth.The newly sharpened teeth will easily inflict injury. File or grind according to instructions for best performance. Proper chain tension helps to ensure long chain life and safer cutting. A chain that is too loose will tend to derail and whip about dangerously. On the other hand, a chain which is too tight will bind and wear prematurely. All chains stretch with use and frequently need checking and readjusting. Good lubrication helps to prolong chain life and maintain tension adjustment. Check the oil often and refill according to instructions. Be sure to use the correct bar oil.
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