Do you need air intake when adjusting the limit screw of pneumatic valve?

Need. First of all, it is necessary to ventilate from one end of the pneumatic valve, and adjust the limit screw by seeing whether the closing and opening positions of the valve reach the predetermined position. The limit screw is a mechanical part with a fixed position and angle. Usually used for heat dissipation device and positioning structure of mechanical equipment. The limit screw can fix the position of the rubber joint.