1. Check and make sure that the chain is right tensioned regularly. Always wear approved protective gloves and turn off the engine before checking.

2. Make sure the chain is well lubricated. Do not use the saw until sufficient chain oil has reached the chain, otherwise the cutting equipment will be damaged.　 　　

3. If the oil delivery path has some problem, first, check the chain lubricating, then the oil way, third, the oil tank and the oil filter mesh are not clogged. It will also cause oil short supply if there is a clog.

4. check the chain tension after work, the crankshaft and bearing will be damaged if the chain is too tight.

5. Never use waste oil!  This is dangerous for yourself, the saw and the environment

6. Check the chain tension every time you refuel.NOTE! A new saw chain has a running-in period during which you should check the tension more frequently.