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How to clean the hydraulic valve of the four-column hydraulic press

by:WORLD     2022-09-29
The four-column hydraulic press will contaminate the hydraulic valve during manufacture, testing, use and storage, resulting in oil deposits or particulate impurities in the hydraulic oil. The failure factor of the hydraulic valve is the reason for keeping the hydraulic valve clean to improve the life and production efficiency of the hydraulic press. Very necessary.












Four-column hydraulic press hydraulic valve cleaning steps:

1. The hydraulic valve is designed for non-disassembly, and forced disassembly is very likely to cause damage to the hydraulic valve. Therefore, the structure of the hydraulic valve and the connection method between the parts should be mastered before disassembly, and the positional relationship between the parts should be recorded during disassembly.












2. After disassembly, check the dirt deposition on the valve body, valve core and other parts, and use cotton yarn, brush, and non-metal scraper to clean the concentrated dirt.



3. Hydraulic valve cleaning is usually done with hydraulic oil or test oil; however, kerosene, gasoline, alcohol, steam or other liquids cannot be used to prevent corrosion of hydraulic components, pipelines, fuel tanks and seals.












4. During the cleaning process, the valve body, valve core and other parts should be placed on the tray in the cleaning box, that is, hot soaking, and the compressed air should be passed into the bottom of the cleaning tank, and the remaining dirt should be cleaned by the stirring effect of the air bubbles. Ultrasonic cleaning can be used for cleaning; non-metallic hammers can be used to hit the oil pipe, which can be continuously hit to remove the attachments in the pipeline.












5. After the cleaning is completed, according to the hydraulic assembly schematic diagram or the parts transfer relationship diagram recorded during disassembly, be careful not to damage the parts during assembly. The original sealing material is easily damaged during disassembly and should be replaced during assembly. .





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