For your safety, please consider the following suggestions.
While operating always wear protective clothing and protective devices such goggles. gloves. face shield and ear muffs
To avoid areas with soid or sharp weapon such as rock, bottle. can
If you notice any abnormal sound, smell, vibration, or other unusual signs, stop the engine immeditately.
After each use swith off engine and check cutting blade and maintenance for use in the next time.
For safety, check the cutting blade for wear and damage and check the tightness of the cutting blade nut before starting the engine. Operating with a worn, cracked. micked or damaged cutting blade causing ceath or serious injury.