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BTMA-Points for attention in of assemble of hydraulic cylinders

Points for attention in disassembly and assembly of hydraulic cylinders

1. Before disassembling the hydraulic cylinder, the hydraulic circuit should be relieved of pressure. Otherwise, when the oil pipe joint connected with the oil cylinder is loosened, the high pressure oil in the circuit will be sprayed out quickly.

When depressurizing the hydraulic circuit, first loosen the handwheel or pressure regulating screw at the relief valve, etc., to unload the pressure oil, and then cut off the power or power source to stop the hydraulic device.

2. During disassembly, prevent damage to the thread on the top of the piston rod, the thread of the oil port, the surface of the piston rod, and the inner wall of the cylinder liner.

3. The disassembly must be carried out in order. As the structure and size of various hydraulic cylinders are different, the disassembly sequence is also slightly different.

When disassembling the cylinder head of the hydraulic cylinder, special tools should be used for the key or snap ring of the internal key type connection, and the use of flat shovel is prohibited; the flange type end cap must be pushed out with screws, and hammering or hard prying is not allowed . When the piston and piston rod are difficult to withdraw, do not force it out. You should find out the reason before disassembling.

4. Before and after unloading, try to create conditions to prevent the parts of the hydraulic cylinder from being contaminated by surrounding dust and impurities.

For example, the disassembly should be carried out in a clean environment as far as possible; after disassembly, all parts should be covered with plastic cloth, not cotton cloth or other working cloth.

5. check carefully to determine which parts can continue to be used, which parts can be used after repair, and which parts must be replaced.

6. All parts must be cleaned carefully before assembly.

7. To properly install the sealing devices everywhere.

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