(1) Hydraulic oil filter: after the operation of the mixing machine, the hydraulic oil filter of the mixing machine should be checked and cleaned in time. If the hydraulic oil filter is damaged, it should be replaced in time to avoid greater hardware loss. In the process of oil injection, a 120 mesh filter is needed for filtering. After a long time of use, the mixing machine gradually appears problems such as reduced lubricity, blockage, cavitation and so on. It is necessary to check, inject and replace the hydraulic oil in time.

(2)液壓油黏度：當液壓系統癱瘓、不工作等故障出現，要及時的調整液壓油的黏度。黏度過高將損耗液壓油液的動能；黏度過低將增加泄漏液壓油液、溫度升高。

(2) Hydraulic oil viscosity: when the hydraulic system is paralyzed, does not work and other failures occur, to timely adjust the viscosity of the hydraulic oil. If the viscosity is too high, the kinetic energy of the hydraulic fluid will be lost; If the viscosity is too low, the leakage of hydraulic fluid will increase and the temperature will increase.

(3)油箱的液壓油應該處于正常的液面位置，確?；赜凸芤约拔瓦^濾器處于液面位置以下的位置，防止在油路回油過程中有空氣進入到油泵內。吸油濾清器應該定期的進行檢查，如果出現了堵塞的現象應該及時進行清理，防止發生空蝕。

(3) The hydraulic oil in the oil tank should be at the normal liquid level to ensure that the oil return pipe and oil suction filter are below the liquid level to prevent air from entering the oil pump during the oil return process. The oil suction filter should be checked regularly. If it is blocked, it should be cleaned in time to prevent cavitation.

攪拌機械是路橋施工作業中，重要的工程機械。對于建設施工領域的應用十分廣泛，對保證建設安全、質量、進度有極其重要的影響。及時檢查路橋施工中的攪拌機械運行狀況，查找故障、問題的根源進行解決，才能預防問題的發生，避免在設備維護、維修等方面的資金投入。建立完整的攪拌機械設備檢查管理模式，定時保養攪拌機械，杜絕問題的萌生。

Mixing machinery is an important engineering machinery in road and bridge construction. It is widely used in the field of construction, and has an extremely important impact on ensuring the construction safety, quality and progress. In order to prevent the occurrence of problems and avoid capital investment in equipment maintenance, repair and other aspects, it is necessary to check the operation status of mixing machinery in road and bridge construction in time and find out the root causes of faults and problems. Establish a complete mixing machinery and equipment inspection management mode, regular maintenance of mixing machinery, to eliminate the emergence of problems.

根據不同的故障情況，選擇合理、有效的維護方法，才能讓攪拌機械運轉投人至路橋施工作業中，同時也提高了攪拌機械的使用壽命，減低安全風險、加大施工進程.確保施工質量、避免不必要的資金支出。

According to different fault conditions, reasonable and effective maintenance methods can be selected so that the mixing machinery can be put into the road and bridge construction operation. At the same time, the service life of the mixing machinery can be improved, the safety risk can be reduced, the construction process can be increased, the construction quality can be ensured, and unnecessary capital expenditure can be avoided.

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