1. Keep the machine operating environment clean and tidy, and the operating environment should not be too humid.
2. Do not use in flammable, explosive and other harsh environments.
3. The three-phase four-wire machine should be equipped with the same type of socket that matches the power supply of the machine, and should meet the requirements of the three-phase four-wire power supply; the single-phase machine should be equipped with a three-pole power socket, and the machine should be reliably grounded.
4. Unplug the power plug when overhauling the machine to prevent electric shock.
5. Keep the vacuum chamber part in the best clean state, and wipe the inside of the machine regularly. The oil of the vacuum pump can only be added to two-thirds of the oil window of the vacuum pump. And strictly follow the vacuum pump instruction manual for use and maintenance.