The hydraulic system of the hydraulic power units is its core part, and requires regular repair and maintenance to ensure its normal operation and extend its service life. The following are common maintenance methods for hydraulic systems:
Hydraulic power units hydraulic system common maintenance methods
Repair of leaks:
Leak points in hydraulic systems are one of the most common failures.
When you detect a leak, first check the location of the leak point. Then, replace the damaged seals or repair the sealing surface as needed. At the same time, it is also necessary to check whether the piping connection is firm, if loose, need to tighten.
Repair of hydraulic pumps:
The hydraulic pump is the power source of the hydraulic system, if the hydraulic pump fails, the hydraulic system will not work properly.
When the hydraulic pump has no pressure or operates abnormally, check if you have clogged the pump inlet, and clean the inlet;
Check that the pump’s suction filter is clean and needs to be cleaned or replaced if it is dirty;
Check the pump seals for wear or deterioration, if there is a problem they need to be replaced.
Repair of hydraulic valves:
Hydraulic valves control the flow and pressure in the hydraulic system. If a hydraulic valve fails, the system will not function properly.
When hydraulic valves experience problems like jamming or leaking oil, first check if you have jammed the spool, and then clean the spool and valve body;
Check the valve body for impurities or deposits and clean the valve body if necessary;
If the spool or body is damaged, it will need to be replaced with a new spool or body.
Repair of hydraulic cylinders:
Hydraulic cylinders are the actuating elements in a hydraulic system, and if they don’t work properly, it will affect the action of the system.
When the hydraulic cylinder shows no action or unstable action, check the internal seals for damage and replace them if you find any issues;
Check the hydraulic cylinder inlet for blockage and clean the inlet;
Check the hydraulic cylinder piston for seizure and repair or replace if necessary.
Maintenance of oil lines:
Problems such as clogging and fouling may occur in the hydraulic system’s oil circuit, affecting the normal operation of the system.
Regularly clean and inspect oil lines to remove dirt and impurities;
Replace cartridges and filters in the oil line to ensure that the oil is clean;
Maintain the proper temperature of the fluid to avoid overheating or overcooling.
In addition to the above maintenance methods, it is also necessary to regularly replace the fluid in the hydraulic system. This ensures the system maintains its normal lubrication and cooling performance. In addition, maintenance personnel should regularly check the pressure and temperature of the hydraulic system. They should also record this data to identify and solve problems in a timely manner.
In short, maintaining the hydraulic system requires maintenance personnel to possess certain professional knowledge and skills. Regular maintenance and care are also necessary to ensure the normal operation and safety of the hydraulic station.
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