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What is the reason for abnormal noise when the excavator rotates? Jan 04, 2025

What is the reason for abnormal noise when the excavator rotates?

    When you are operating an excavator, you may encounter a variety of problems. One common problem is the abnormal noise when the excavator rotates, which may affect your work efficiency and productivity. In order to solve this problem, you need to understand the reasons why the excavator rotates abnormally. Here are some factors that may cause the excavator to rotate abnormally, I hope it will be helpful to you.

 

     The first possible reason is that the excavator slewing bearing is damaged.

    The slewing bearing is one of the most important parts of the excavator. It connects the upper and lower parts of the excavator, supports the upper weight and allows 360-degree rotation. If the slewing bearing of the excavator is damaged or worn, abnormal noise may occur. This abnormal noise may affect the normal operation of the excavator and even cause the excavator to malfunction. Therefore, during the use of the excavator, the slewing bearing should be checked regularly. If any problem is found, the damaged slewing bearing should be replaced in time.

 

The second possible reason is that the excavator swing motor is faulty.

    The swing motor is an important part of the excavator. It is located at the bottom of the excavator and provides power to enable the excavator to rotate flexibly. If the swing motor fails, the excavator will make abnormal noises or fail to rotate normally. If a swing motor failure is found, it is necessary to take timely measures to solve the problem. Usually, the faulty swing motor is replaced. Before replacing, it is necessary to pay attention to the brand and model of the swing motor to ensure that the replacement swing motor matches the other parts of the excavator.

 

The third possible reason is a hydraulic system failure.

    The hydraulic system is a very critical part of the excavator. It controls various movements, such as digging, turning, lifting, etc., by using liquid to transmit pressure in the pipes. This plays an important role in the work of the excavator. If the hydraulic system fails, it may cause the excavator to make abnormal noises or even fail to work properly. The solution to this problem is to repair or replace the damaged hydraulic system parts.

    There are also some other possible reasons, including wear of the chassis rotation device, wear of the slewing connection, wear of the slewing base plate, etc.

 

    In summary, it is crucial to correctly locate the source of the problem. There may be many reasons for the abnormal noise of the excavator rotation. These reasons include damaged slewing bearing, slewing motor failure, hydraulic system failure, etc. If you don't know what is causing the abnormal noise of the excavator rotation, you may take the wrong measures to solve the problem. This may lead to more serious mechanical failure or safety issues. Therefore, if you encounter this problem, it is best to ask a professional to check it and take appropriate measures to solve the problem.

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