As a construction machine with excellent performance, the normal operation of the transmission system of Liugong loader is very important. As the "blood" of the transmission system, the appropriate amount of transmission oil directly affects the operation effect and service life of the loader. First of all, we must make it clear that the amount of Liugong loader transmission oil is not static, but is determined according to the specific model of the loader, the working environment and the frequency of use. Therefore, the most accurate transmission oil filling amount should refer to the instruction manual of Liugong loader or consult professional maintenance personnel. Generally speaking, the transmission oil of the Liugong loader should be filled within the normal range marked by the dipstick. When filling, it is necessary to pay attention to the cleanliness of the oil and avoid the mixing of impurities and moisture to ensure the normal operation of the transmission system. At the same time, it is necessary to regularly check the oil level and quality of the transmission oil, and find and solve the problem in time. In short, the filling amount of Liugong loader transmission oil should be determined according to the actual situation, which should not only ensure the normal operation of the loader, but also avoid waste and environmental pollution. Only in this way can we give full play to the efficient performance of Liugong loaders and contribute to the construction of the project.