1、目測換油法。它是了憑維修人員的經驗，根據目測到的一些油液常規狀態變化——如油液變黑、發臭、變成乳白色等，決定是否換油。這一方法取決于實際操作人員的經驗積累了。
2、取樣化驗法。定期對硫化機中的油液進行取樣化驗，測定必要的項目（如黏度、酸值、水分、顆粒大小和含量以及腐蝕等等）和指標，按油質的實際測量值與規定的油液劣化標準進行對比，確定了油液該不該換。取樣時間：對一般工程機械的液壓系統應在換油周期前一周進行，關鍵設備，如：TBM全斷面掘進機等的液壓系統應每隔500小時進行一次取樣化驗，化驗結果應填入設備技術檔案。取樣化驗法適用于關鍵設備和大型液壓設備。
The vulcanizer should be replaced after running for a period of time. The oil change is determined by the degree of contamination of the oil. However, how to grasp the time of oil change is also a problem. Today, Xiaobian has helped you find some ways to determine the oil change period of vulcanizer.
1. Visually changing the oil method. It is based on the experience of maintenance personnel, according to the visual observation of some changes in the conventional state of oil - such as oil blackening, smelling, turning Milky white, etc., to decide whether to change oil. This method depends on the experience accumulated by the actual operators.
2. Sampling and testing methods. Sampling and testing of oil in vulcanizer regularly, determining necessary items (such as viscosity, acidity, moisture, particle size and content, corrosion, etc.) and indicators, and comparing actual measured value of oil quality with prescribed oil deterioration standard, determining whether oil should be replaced or not. Sampling time: The hydraulic system of general construction machinery should be carried out one week before the oil change period. The key equipment, such as TBM full-face tunneling machine, should be sampled every 500 hours. The test results should be filled in the equipment technical files. Sampling and testing methods are applicable to key equipment and large hydraulic equipment.
3, regular oil change method. According to the environmental conditions, working conditions and oil exchange cycle of the equipment site, the replacement will be carried out at the expiration date. This method is applicable to enterprises with more hydraulic equipment.
