Foreign matter generated in operation a. Because the cushion plunger not formed by the friction strength of iron or iron filings. Buffer means with the gap is very small, the piston rod lateral load suffered greatly, it may cause sintering phenomenon. The friction has been falling off the iron or metal fragments generated due to sintering will remain in the cylinder. b. scars inside the cylinder wall surface. The sliding surface of the piston high pressure, causing sintering phenomena occur so crowded cylinder surface crack, crack of metal pushed off, stay in the cylinder can cause injuries (4) before unloading unloading to try to create conditions to prevent the hydraulic cylinder parts surrounding contaminated dust and impurities. For example, as far as possible should be disassembled in a clean environment; After disassembly all parts use plastic sheeting to cover the thin cylinder, do not use cotton or other work covered with a cloth. (5) after the demolition of a hydraulic cylinder to be carefully checked to determine which parts can continue to use the manual hydraulic cylinders, which parts can be repaired before using it, which parts must be replaced. (6) of the parts must be carefully cleaned before assembly. (7) around the sealing device to be properly installed. ① When installing O-rings, do not pull its permanent deformation degree, do not side scrolling side suits, or may be due to the formation of distorted shape and oil spills. When ② installation Y-shaped and V-ring, pay attention to the mounting direction, to avoid oil spills installed instead. For Y-ring, its lips cope with the pressure of the oil chamber; in addition, Yx-ring is also a distinction shaft or hole, do not install the wrong. V-ring made of a shape different supporting ring, seal rings and pressure rings, when the pressure ring compress the seal ring, bearing ring seal ring can produce a cylinder-shaped seal sky, opening the seal ring should be installed for pressure oil chamber; double-acting hydraulic cylinder, shall not leak when the pressure adjustment ring limit, not overextended, sealed to prevent too much resistance. ③ sealing device such as the sliding surface fit, the assembly should be coated with an appropriate amount of hydraulic oil. O-ring and dust ring should all the new ones ④ disassembled. Double-acting hydraulic cylinders, cylinder, Liaoning, Shandong Lu hydraulic force provided by hydraulic equipment plant in Texas. Texas Lu force hydraulic machinery plant (www.luliyeya.com) strong, credible, in Dezhou hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lu Hydraulic and you hand into the brilliant, for a better future!