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Disassembly of cylinder of four-column hydraulic press

Four column hydraulic press cylinder disassembly procedures are:

(1) Before unloading the hydraulic cylinder, the hydraulic circuit should be decompressed, and then the power supply should be blocked, and the cylinder should be disassembled after the hydraulic equipment completely stops rolling, and the order cannot be inverted.

(2) When disassembling, avoid damaging the top thread of the piston rod, the oil thread, the appearance of the piston rod, the inner wall of the cylinder liner, etc. In order to avoid zigzag or deformation of slender parts such as piston rods, use wire to trap suspension placement, and use cushion wood to support balanced placement of cylinder block.

(3) The technical personnel of the four-column hydraulic press manufacturer should disassemble the cylinder in accordance with the requirements and order of the rules, and cannot be changed without authorization. When disassembling, avoid damaging the top thread of the piston rod, the oil port thread, the appearance of the piston rod, the inner wall of the cylinder liner, etc. In order to avoid twists and turns of slender parts such as piston rods, wire is used to trap the suspension placement, and the cylinder body is supported by cushion wood for balanced placement.

(4) If the process of disassembly is blocked, it cannot be forcibly carried out, and the reason should be found out and the problem should be solved before disassembly.

(5) Before and after disassembly, the parts in the cylinder should be avoided by the environment or man-made pollution, and the disassembly environment should be clean. Before and after unloading, we should try to create conditions to avoid the parts of the hydraulic cylinder being polluted by the surrounding dust and impurities. For example, disassembly should be carried out in a clean environment as far as possible; After disassembling all parts should be covered with plastic cloth, do not use cotton or other working cloth to cover.

(6) After the cylinder is disassembled, it is necessary to carefully check the parts in order to determine what needs to be corrected or replaced.

(7) After the cylinder is installed, the piston assembly should be moved to check whether there is a block. It is also necessary to carry out several reciprocating movements, in the case of low pressure, in order to discharge the gas in the cylinder.

(8) The sealing equipment should be accurately installed, and the connecting parts should be tightened with a wrench.


Four column hydraulic press

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