How to maintain the hydraulic system?

Hydraulic system plays a vital role in excavator. Good hydraulic oil is a hydraulic system that can ensure the stable operation of machinery and escort the excavator. Here's how to maintain our hydraulic system:

First of all, choice is very important

Correct and high-quality hydraulic oil can play the role of pressure transmission, lubrication, cooling and sealing in the hydraulic system. Improper selection of hydraulic oil is the main reason for the early failure and durability decline of hydraulic system. The normal method is to distinguish the color of hydraulic oil. If it is found that the hydraulic oil with dark brown, milky white or obvious smell is deteriorated oil, it should not be used in machinery.

Second, put an end to all unnecessary impurities

Clean hydraulic oil is the life of hydraulic system. There are many precision couplings in the hydraulic system, some with damping holes and some with gaps. If solid impurities invade, it will cause strain, hairpin and oil blockage of precision coupling, which will endanger the safe operation of hydraulic system. So we can start from the following aspects:

1. Before refueling, the hydraulic oil should be filtered and filled to ensure its cleanliness.

2. When maintaining the hydraulic system, remove the filler cap, filter cover, inspection hole, hydraulic oil pipe and other parts to prevent unnecessary dust from sticking to the oil pipe when it is exposed.

3. Clean the hydraulic components and hoses, and then dry them with high-pressure air before assembly. When replacing hydraulic oil, clean the filter together to ensure that there are no impurities and dirt in the filter housing.

4. Using the same brand of hydraulic oil, the oil temperature should be controlled between 45 ~ 80℃. When replacing hydraulic oil, the hydraulic system should be cleaned repeatedly first, and then new oil should be injected after cleaning.

Third, regular maintenance.

Check the filter regularly. Due to long-term operation and use, many metal impurities will attach to the filter screen and to the oil pump or oil cylinder. Therefore, it is necessary to clean the filter in time and change the oil in time. When the hydraulic system fails, the relevant maintenance personnel should be contacted for maintenance in time to reduce unnecessary losses caused by the failure.

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