In the process of using the agitator of the hydraulic pump, if the hydraulic system breaks down, the performance of the agitator will be greatly reduced. It is necessary to understand the causes of the hydraulic system faults well, to be able to check and repair them well, so that the mixer can return to normal operation without affecting the work progress. Let's take a look at the detection method of the failure of the hydraulic pump of the automatic feeding mixer.

　　氣味診斷方法:是指鼻子聞到液壓油是否有異味，如果聞到液壓油局部有異味，液壓泵等液壓元件局部發熱，導致液壓油燃燒冒煙，根據發熱程度可以判斷。聞一下液壓油是否有惡臭或辛辣味，如果有說明液壓油已被嚴重污染，不能繼續使用。

　　Odor diagnosis method: it refers to whether the nose smells the peculiar smell of the hydraulic oil. If the nose smells the peculiar smell of the hydraulic oil, the hydraulic pump and other hydraulic components are locally heated, which causes the hydraulic oil to burn and smoke, it can be judged according to the degree of heating. Smell the hydraulic oil to see if it has a bad smell or pungent smell. If so, it means that the hydraulic oil has been seriously polluted and cannot be used again.

　　視覺診斷方法:用肉眼觀察液壓系統的工作狀態，觀察液壓系統各壓力點的壓力值和溫度變化，檢查油液是否干凈，油液量是否充足。觀察液壓閥、管路接頭、液壓缸端蓋、液壓泵傳動軸是否漏油。觀察設備加工后的產品或進行性能測試，識別運動機構的工作狀態，系統壓力和流量的穩定性，電磁閥的工作狀態。

　　Visual diagnosis method: observe the working state of the hydraulic system with naked eyes, observe the pressure value and temperature change of each pressure point of the hydraulic system, and check whether the oil is clean and sufficient. Observe whether the hydraulic valve, pipeline joint, end cover of hydraulic cylinder and transmission shaft of hydraulic pump leak oil. Observe the processed products or conduct performance test to identify the working state of the moving mechanism, the stability of the system pressure and flow, and the working state of the solenoid valve.

　　聽覺診斷方法:是用耳朵判斷液壓系統或部件是否正常工作。聽液壓泵及液壓系統噪音是否過大;聽溢流閥等部件是否有異常聲音;聽工作臺換向時，沖擊聲是否過大;注意聽活塞撞擊液壓缸底部的聲音。

　　Auditory diagnosis method: it is to judge whether the hydraulic system or components work normally by ears. Listen to whether the noise of hydraulic pump and hydraulic system is too loud; listen to whether there is abnormal sound of overflow valve and other components; listen to whether the impact sound is too loud when the workbench changes direction; pay attention to the sound of piston hitting the bottom of hydraulic cylinder.

　　觸摸診斷方法:用手觸摸運動部件的溫度和工作狀態，用手觸摸液壓泵殼體、油箱外壁、閥體殼體的溫度。正常溫度應在55℃左右，如超過60℃應加以識別。用手觸摸活動部件和油管，看是否有明顯的振動。

　　Touch diagnosis method: touch the temperature and working state of moving parts by hand, and touch the temperature of hydraulic pump housing, oil tank outer wall and valve body housing by hand. The normal temperature should be about 55 ℃. If it exceeds 60 ℃, it should be identified. Touch moving parts and oil pipes with hands to see if there is obvious vibration.

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