Check the cylinder, gas and valve has no leakage phenomenon in time to eliminate.
Clean the contact surface of moving parts at any time in the work. such as guide sleeve, guide pillar everywhere.
Frequently check the components of the connection fastening bolts, nuts are loose, timely tightening.
Clean the equipment after work every day, once a week and thoroughly.
The electric control box and the operating surface are kept clean. Do not repair or set time after the door closed tightly buckle good.