Hydraulic Valve Maintenance Method(2)

In the actual use of hydraulic equipment, due to various factors, there may be some failures of hydraulic valves, which will adversely affect the normal use of hydraulic equipment. Therefore, scientific and reasonable methods are used to repair hydraulic valve failures, and the best solution is An important means to ensure the normal use of hydraulic equipment. As a hydraulic equipment management and maintenance personnel, you should have a detailed understanding of the hydraulic valve maintenance method and master it proficiently, so as to effectively deal with the hydraulic valve failure and ensure the good operation of the hydraulic equipment.

Cleaning the hydraulic valve

In the hydraulic valve maintenance process, the disassembly and cleaning of the hydraulic valve is the first process. In the actual use of hydraulic pump equipment, the contamination of hydraulic oil will lead to oil precipitation, or some granular impurities in the hydraulic oil, which will cause the hydraulic valve to fail. Usually, these failures can be removed after disassembly and cleaning. exclusion, so that the hydraulic valve can resume its function. For hydraulic valve disassembly and cleaning, it mainly includes the following five aspects:

(1) Disassembly. For the hydraulic valve, although most of its parts are connected by bolts, the hydraulic valve is not disassembled when it is designed. hydraulic valve. Therefore, before disassembly, the maintenance personnel should master the structure of the hydraulic valve, and should master the connection method between the various parts, and the positional relationship between the different parts should be recorded during the disassembly process.

(2) Check and clean up. Check the valve body and valve core and other parts to observe the dirt deposition. On the basis of not causing damage to the working surface, use brushes, cotton yarns and non-metal scrapers to remove concentrated dirt.

(3) Rough washing. Place the valve core and valve body on the tray of the cleaning box, heat and soak them, and pass compressed air at the bottom of the cleaning tank, and use the stirring effect of air bubbles to clean the remaining dirt. Ultrasonic waves are possible when conditions permit. cleaning.

(4) Fine. First perform high-pressure positioning cleaning with cleaning liquid, and then dry with hot air. Under the conditions of the enterprise, the existing fresheners can be selected, and organic cleaning agents can also be used in some special occasions, such as gasoline and diesel.

(5) Assembly. Assemble according to the schematic diagram of the hydraulic valve or the assembly relationship of the parts recorded during disassembly. Care should be taken during the assembly process to prevent the parts from being damaged. For some original sealing materials, it is easy to be damaged during the actual disassembly process, so it should be replaced during assembly.

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