The hydraulic system of the hatch cover, as an indispensable part of the ship structure, its normal operation directly affects the safety and efficiency of the ship. Therefore, regular inspection and maintenance of the hydraulic system of the ship's hatch cover is an essential part of the daily operation of the ship.

1、 Oil level and quality inspection

Firstly, we need to check the oil level of the hydraulic system. The level of oil directly affects the normal operation of the hydraulic system. If the oil level is too low, it may cause the system to malfunction due to insufficient oil; If the oil level is too high, it may cause the system to overheat and affect the quality of the oil. Therefore, regularly checking the oil level to ensure it is within the normal range is the first step in hydraulic system inspection.

At the same time, we also need to inspect the oil quality. The quality of oil directly affects the stability and service life of hydraulic systems. If there are impurities or pollutants in the oil, it may cause problems such as system blockage and increased wear. Therefore, we need to regularly replace the oil and conduct laboratory tests on the oil during replacement to ensure that its quality meets the requirements.

2、 Seal inspection

Seals are an important component of hydraulic systems, and their sealing performance directly affects the safety of the system. Therefore, we need to regularly inspect the seals in the hydraulic system. The inspection mainly includes whether the sealing components are aging, damaged or deformed, and whether the sealing surface is worn or scratched. If any problems are found, they need to be replaced or repaired in a timely manner to ensure the sealing performance of the system.

3、 Pipeline and joint inspection

The pipelines and joints of the hydraulic system are also prone to problems. Pipelines may experience problems such as rupture, deformation, or blockage due to aging, wear, or external forces; And the joint may leak due to looseness, damage, or corrosion. Therefore, we need to conduct regular inspections of pipelines and joints, promptly address any issues found, to ensure the normal operation of the system.

4、 Hydraulic pump and motor inspection

Hydraulic pumps and motors are the power sources of hydraulic systems, and their operating conditions directly affect the stability and reliability of the system. Therefore, we need to conduct regular inspections on hydraulic pumps and motors. The inspection mainly includes checking whether the operating sound, temperature, vibration, etc. of the pump body and motor are normal, as well as whether the suction and discharge of oil are smooth. If any problems are found, they need to be dealt with in a timely manner to ensure the normal operation of the system.

5、 Inspection of safety valve and pressure gauge

Safety valves and pressure gauges are important safety devices in hydraulic systems, and their performance directly affects the safety of the system. Therefore, we need to conduct regular inspections on safety valves and pressure gauges. The inspection mainly includes the opening pressure and closing pressure of the safety valve, as well as the accuracy of the pressure gauge reading. If any problems are found, they need to be replaced or repaired in a timely manner to ensure the security of the system.

6、 System functional testing

Finally, we need to conduct functional testing on the hydraulic system. The testing content mainly includes whether the system's functions such as opening, closing, lifting, etc. are normal, as well as the system's response speed and stability. If any problems are found, they need to be dealt with in a timely manner to ensure the normal operation and security of the system.

In short, regular inspection and maintenance of the hydraulic system of the ship's hatch cover is an important measure to ensure the safe and stable operation of the ship. We need to conduct inspections and maintenance according to the prescribed inspection content and cycle, timely discover and handle problems, to ensure the normal operation and safety of the hydraulic system.