Chongqing cylinder maintenance mainly pay attention to the protection and repair of various parts during the disassembly process, among which matters needing attention. 1. Before unloading the Chongqing hydraulic cylinder, the hydraulic circuit should be relieved of pressure. Otherwise, when the oil pipe joint connected to the cylinder is loosened, the high-pressure oil in the circuit will be quickly ejected. When the hydraulic circuit is relieved, first loosen the hand wheel or pressure regulating screw at the relief valve to relieve the pressure oil, then cut off the power or cut off the power source to stop the hydraulic device. Processing Machinery,Manual Winches,Hydraulic Guillotine Shear,Four Columns Hydraulic Press Machine Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaou.com
2. When removing, prevent damage to the top thread of the piston rod, the thread of the port and the surface of the piston rod, the inner wall of the cylinder liner, etc. In order to prevent the elongated members such as the piston rod from being bent or deformed, the spacer support is applied to balance.
3. Disassemble in order. Due to the different structure and size of the various hydraulic cylinders, the disassembly sequence is slightly different. Generally, the oil in the two chambers of the cylinder should be drained, then the cylinder head should be removed, and finally the piston and piston rod should be removed. When removing the cylinder head of the hydraulic cylinder, special tools are used for the key or snap ring of the inner card type coupling, and the flat shovel is prohibited. For flanged end caps, they must be screwed out and no hammering or hard smashing is allowed. When the piston and the piston rod are difficult to extract, do not force it out. You should first find out the cause and then disassemble it.
4. After unloading and unloading, try to create conditions to prevent the parts of the hydraulic cylinder from being contaminated by dust and impurities around. For example, when disassembling, try to carry out in a clean environment; after disassembly, all parts should be covered with plastic cloth, not covered with cotton cloth or other work cloth.
5. After the cylinder is disassembled, it should be carefully checked to determine which parts can be used continuously, which parts can be repaired and used, and which parts must be replaced.
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