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What are the reasons for hydraulic failure of excavator?

Release time: 2020-09-09 14:48:33 Source: Bulldozer

There are many reasons for the failure of the hydraulic system of an excavator. The following are the 4 most common failures.


What are the reasons for hydraulic failure of excavator?


1: Hydraulic oil pollution Due to the poor working environment of hydraulic excavators, the hydraulic oil is easily polluted by the external environment, which may cause damage to the hydraulic system of the excavator. The nature of the work of hydraulic excavators makes it difficult to manage pollution at the source. The only way to reduce the impact of impurities on the hydraulic system is through regular cleaning and testing of equipment, and regular replacement of difficult-to-handle parts. Ensure the stable operation of the hydraulic system, thereby ensuring the normal use of hydraulic excavators.


2: Engine oil circuit failure. Due to the working environment of the hydraulic excavator or the failure to select high-quality oil during the refueling process, it will affect the engine oil circuit, causing blockage of the oil circuit, and the structure of the hydraulic system is more complicated. Once a failure occurs, it is more difficult to repair. Therefore, we must pay attention to keeping the fuel tank clean and clean the filter in time to ensure the safety of the engine. In addition, it is necessary to avoid the air lock caused by air entering the oil circuit and fuel evaporation to ensure the normal operation of the engine.


3: Overheating of hydraulic oil Overheating of hydraulic oil will affect the working efficiency of the hydraulic system and cause the hydraulic excavator to not work efficiently. Overheating of the hydraulic oil will cause the internal structure of the hydraulic excavator to deform and increase the friction between each other, which will reduce the service life of the hydraulic excavator. In addition, if the hydraulic oil is overheated, it will vaporize, causing corrosion to the hydraulic system of the hydraulic excavator and affecting the operation of the hydraulic system. When the hydraulic oil is overheated, it can be dealt with by increasing the heat dissipation area of the oil tank, strengthening the management of the selection and use of hydraulic oil, and preventing interference from external impurities, so as to effectively reduce the occurrence of overheating of the oil and ensure the stable operation of the hydraulic excavator .


4: Leakage of hydraulic system Leakage of hydraulic system will lead to insufficient internal pressure, unable to provide enough power for hydraulic excavator, and also cause pollution to the environment. The leakage of hydraulic system is generally caused by the aging or damage of the sealing element. The sealing element can not play its due role, resulting in poor sealing of the hydraulic system and leakage. If you want to avoid this situation, you can carefully analyze the operation process of the hydraulic system and select the appropriate sealing material to ensure the sealing effect. In addition, the sealing must be carried out with professional equipment to avoid hydraulic system leakage caused by improper installation.