How to maintain the cylinder?

Cylinder is pneumatic actuator, it is vulnerable components, the following examples are the single piston rod double-acting cylinder type, in the practical use for a year, will appear different degrees of air leakage, 'bite cylinder, buffer lost? ' Effect such as fault, in order to solve such problem, based on the principle of diy, maintenance should be carried out on the cylinder. , the maintenance of the piston cylinder piston subjected to pressure to produce thrust and sliding inside the cylinder, piston has good sliding characteristics, at the same time to have a good seal between piston and cylinder, and the sealing between them are implemented by Yx seal ring, so Yx ring for Yx seal ring section has two parts, ranging from the foot length of lips, sealing ring is installed on the piston groove, when subjected to pressure on the right side, seal lip under atmospheric pressure is open, and its sealing function on the cylinder wall. Cylinder after dismantling watch, if discover Yx ring labial ministry is smooth, should be removed from the piston, it changed into a new, daub grease. While working on a maintenance cylinder, cylinder head, piston will hit cylinder head, cylinder head sealing ring buffer for the wearing parts, sealing ring buffer if severely damaged, will make the cylinder before the trip end, cushion plunger and seal is not good sealing and lose cushion. Long period using cylinder, is generally going to replace the sealing ring, at the same time on the grease. Cylinder cushion is the corner that is forgotten, note here, unscrewed the buffer valve, with a fine wire carefully clean up the buffer vent ( Be careful not to damage the throttle valve threads) , otherwise, the buffer vent stuck, could lead to the piston rod can not reach the designated position. Maintenance of cylinder, cylinder wall coating of grease, mount the piston rod, push and pull by hand a few times at the same time, to ensure that the lubrication between the piston and cylinder and sealing quality.