How to determine the jinan cylinder common failures?

Jinan it consists of cylinder, piston, piston rod, cylinder end cover before and after the end cover and seal etc. Double-acting cylinder internally by the piston is divided into two Chambers. Cavity of the piston rod is called antrum, rodless cavity called the rodless cavity. When input from rodless cavity compressed air, rod cavity exhaust, the pressure difference between the two cavity effect on the piston cylinder driving force to overcome the resistance load which is formed by the piston movement, the piston rod out; When the rod chamber inlet, rodless cavity exhaust, retract the piston rod. If there is no bar and rod cavity alternating intake and exhaust, piston reciprocating linear motion. Working principle of the cylinder, air pressure make the piston movement, by changing the inlet direction, change the direction of the movement of the piston rod. Common fault judgment and maintenance tips: jinan cylinder, good cylinder: hand tightly blocked pores, and then pull the piston shaft with the hand, when there is a lot of reverse force, when the piston will automatically back in situ; Pull out of the push rod and blocked pores, with the hand press also has a lot of reverse force, when push rod when the piston will automatically back in situ. And bad cylinder: when no resistance or force is small, put the piston movement or action to slow, continuous pull out with reverse force but slowly decreasing; Pressure when there is no pressure or stress is very small, there is pressure but the pressure is smaller. , general magnetic switch is not easy to bad, but we often appear in the actual operation of the magnetic switch does not work, no signal output of the phenomenon, this is because the magnetic switch is changed the location of the installation, lead to the induction in the cylinder magnet, this requests us to check if it is often tighten.