隨著社會節奏發展速度不斷加快，城市建設的腳步邁的越來越大，長臂挖掘機出租需求量也在不斷的攀升，而使用上懂得保養的人并不多，特別是油液被污染后，會造成造成很多危害。

With the accelerating pace of social development and the increasing pace of urban construction, the demand for renting long arm excavators is also constantly increasing. However, there are not many people who know how to maintain them, especially when the oil is contaminated, it can cause many hazards.

一、油液被污染，主要的就是會出現堵塞液壓元件，污染物也是容易堵塞液壓元件進出油或者滲透到其中的間隙之中，導致運行動作出現失靈的情況，從而影響實際使用工作性能，嚴重的還會導致出現事故。其中常見的就是濾網使用上發生堵塞，也會導致濾網實際使用功能喪失，過濾效果大打折扣，這也會導致液壓系統中長期有被污染的液壓油，引發諸多問題。

1、 The main reason for oil contamination is the blockage of hydraulic components. Contaminants are also the most likely to block the oil in and out of hydraulic components or penetrate into the gaps, causing operational failures and affecting actual performance. In severe cases, it can also lead to safety accidents. The most common one is blockage in the use of the filter screen, which can also lead to the loss of actual use function of the filter screen, greatly reducing the filtering effect. This can also cause long-term contamination of hydraulic oil in the hydraulic system, causing many problems.

二、油液被污染容易影響的就是元件出現過度磨損的問題，污染物顆粒在液壓缸的內部，很容易導致缸筒表面被刮傷的問題，后續會蔓延到密封元件被損壞老化速度加快，泄漏的問題也會不斷增加，使用上會明顯感覺長臂挖掘機的推力沒有之前那么好，運行的速率上也下降明顯，作業中甚會出現異常的噪音污染的問題，嚴重影響系統的穩定性能。

2、 The contamination of oil can easily affect the problem of excessive wear of components. The particles of pollutants inside the hydraulic cylinder can easily cause the surface of the cylinder to be scratched, which will later spread to the sealing components. The aging rate will accelerate, and the problem of leakage will continue to increase. In use, it will be obvious that the thrust of the long arm excavator is not as good as before, and the operating speed will also decrease significantly. Abnormal noise pollution may even occur during operation, seriously affecting the stability performance of the system.

三、油液被污染后，也會加速油液劣化速度，污染物顆粒也會長期在內部存在，就算后續更換新油，也會讓新油被污染，長臂挖掘機的使用壽命依然會快速衰減。

3、 After the oil is contaminated, it will also accelerate the deterioration rate of the oil, and pollutant particles will exist inside for a long time. Even if new oil is replaced in the future, the new oil will be contaminated, and the service life of the long arm excavator will still rapidly decline.