(1) Disassembly. For hydraulic valves, although most of the parts are connected by bolts, the hydraulic valve is not disassembled when designed, and if it is forcibly disassembled due to lack of special equipment or lack of professional technology, it may lead to damage to the hydraulic valve. Therefore, before disassembly, the maintenance personnel should master the structure of the hydraulic valve, and should master the connection mode between the parts, and the position relationship between different parts should be recorded in the disassembly process.
(2) Check and clean up. Inspect the valve body and spool and other parts to observe the deposition of dirt, and on the basis of not causing damage to the working surface, use brushes, cotton yarn and non-metallic scrapers to remove the dirt in a concentrated manner.
(3) Rough washing. Place the valve core and valve body on the cleaning box tray, heat and soak it, pass compressed air at the bottom of the cleaning tank, and use the stirring effect generated by the bubbles to clean off the residual dirt, and ultrasonic cleaning can be carried out if conditions permit.
(4) Fine. It is first cleaned with a high-pressure positioning solution and then dried with hot air. If the enterprise has the conditions, the existing freshener can be selected, and the organic cleaning agent can also be used in some special occasions, such as gasoline and diesel.
(5) Assembly. According to the schematic diagram of the hydraulic valve or the assembly relationship of the parts recorded during disassembly, the assembly should be carefully operated during the assembly process to prevent the parts from being damaged. Some of the original sealing materials can be easily damaged during the actual disassembly process, so they should be replaced during assembly.
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Simplify the design
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Digital on-board electronics
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