(8) Shall not work in places with wire mesh and wires.(9) In order to ensure the safety and comfort of the operator, adjust the length and tightness of the strap to ensure normal operation in a balanced state. The connection between the strap hook and the machine must be firm and reliable.(10) Timely remove objects (such as stones, wood blocks, etc.) that are easy to be splashed or thrown by the machine in the working area.(11) Protect hands and feet during operation. Please do not touch the muffler when the gasoline engine is not cooled.