Diagnosis and elimination of agricultural machinery faults
The diagnosis and troubleshooting of agricultural machinery faults is relatively difficult. Some maintenance personnel have always used the method of replacement testing, regardless of the large or small parts, as long as they believe that the components that may cause the fault are replaced one by one, the results not only fail to eliminate the fault, but also replace the parts that should not be replaced at will, increasing the expenses of agricultural machinery users. Some faulty components can be completely restored to their technical performance through repair, without the need for complex repair processes. However, maintenance personnel require users to replace them with new parts and blindly adopt the "replacement repair" method, resulting in serious waste. The practice of blindly replacing parts and blindly replacing repairable parts mentioned above still exists to varying degrees in some repair units. During maintenance, the cause and location of the fault should be carefully analyzed and judged based on the fault phenomenon. For repairable components, repair methods should be adopted to restore technical performance, and blind replacement of components should be avoided.
Failure to check the quality of new parts after assembly is a common issue
Before replacing the parts, some maintenance personnel do not conduct technical inspections on the new parts and install them directly on agricultural machinery. This approach is unscientific. At present, the quality of agricultural machinery spare parts sold in the market is uneven, with some counterfeit and inferior parts being mixed up; There are also some accessories whose performance changes due to long inventory times, such as not being tested, which often cause malfunctions after assembly. Before replacing with new accessories, it is necessary to conduct necessary inspections and tests, including appearance and performance tests, to ensure that the new accessories are faultless and prevent unnecessary trouble caused by them.