Several misconceptions to be aware of when repairing second-hand excavators

On the rightUsed excavatorWhen carrying out repairs, due to various reasons, such as the lack of maintenance knowledge of second-hand excavators possessed by the maintenance personnel themselves, or a lack of understanding of some special mechanisms of this old excavator. Even some maintenance personnel may not have a serious and proper attitude when carrying out repairs. When inspecting the structure or faulty parts of the excavator, they feel that as long as they are similar, they can simply click and stop. So when dismantling the old excavator, a reasonable and orderly procedure was not followed. This approach is likely to result in the repaired excavator not only not receiving effective troubleshooting, but also being highly likely to experience further malfunctions. For this situation, Shanghai Huacheng believes that it is necessary for us to understand. So let's take a look at what misconceptions should be paid attention to when repairing old excavators? (You can also refer to)What are some tips worth learning when selecting second-hand excavators）

The first thing we need to pay attention to is the improvement of the maintenance skills and attitude of the relevant maintenance personnel. Because for the maintenance of second-hand excavators, the maintenance personnel play the most important role. If the maintenance personnel fail to fulfill their duties during the repair process, it will not only cause temporary symptoms but also potentially trigger the same or new faults again, which can greatly reduce the service life of the old excavator. So the relevant maintenance personnel should clarify the working principle of the excavator before repairing it, and then understand the important structures included in the old excavator according to the relevant instructions. When disassembling the excavator, it should not be done blindly, but should be carried out in a scientific and reasonable manner.

The second requirement is to have the correct maintenance and inspection methods. Usually, if the excavator malfunctions and cannot be put back into operation, our maintenance personnel can effectively combine some testing equipment to help us detect it. This can effectively improve the efficiency of our maintenance of second-hand excavators. Because the detection equipment can quickly and accurately help us detect where the excavator's faults are located.

But what should be done if the working environment is harsh and the maintenance personnel do not carry the testing equipment? Don't panic. Actually, manual testing is also possible. The most traditional approach is to conduct problem detection on second-hand excavators that have malfunctioned through observation, inspection, and debugging methods. However, under the premise of manual inspection, our maintenance personnel need to have a certain understanding of the relevant institutions and their working principles. This is the only way to accurately identify the location of the problem and which component of the excavator is causing the malfunction.

The third maintenance mistake that needs attention is replacing parts. Many maintenance personnel usually use the method of replacing parts for second-hand excavators. Although this method is a versatile and universal approach, it is unscientific. If scientific and reasonable testing and maintenance are not carried out, relying solely on blindly replacing parts for excavators will not only easily cause the original faults to not be eliminated, but also increase the cost burden of maintenance to a certain extent.