罗茨风机在长期使用过程中，经过风吹日晒，加上周边的环境，机身上很容易出现油渍厚厚的灰尘等粘附在上门，有些零件表面存在较厚的油垢。小的金属零件，可放入盛有溶剂油油盆中，用毛刷刷洗。

In the long-term use process of Roots blower, after the wind and sun, coupled with the surrounding environment, it is easy to appear oil stains on the fuselage, thick dust and other adhesion on the door, and there are thick oil stains on the surface of some parts. Small metal parts can be put into the oil basin containing solvent oil and washed with a brush.

零件较大、油盆容纳不下时，可以先用旧棉纱措擦油污，然后用予净棉纱（或棉布）蘸溶剂油或香蕉水擦洗有油污的部位，直到净污见底为止。如果油泥较厚，可将零件放在煤油中浸泡一段时间（一般为10~30min) , 待泊垢大部分溶解之后再用毛刷刷洗。用溶剂油或香蕉水清洗过后，零件表面一般可以自干。

When the parts are large and the oil basin can't hold them, you can first use the old cotton yarn to wipe the oil stains, and then use the clean cotton yarn (or cotton cloth) dipped in solvent oil or banana water to scrub the parts with oil stains until the clean dirt reaches the bottom. If the sludge is thick, soak the parts in kerosene for a period of time (generally 10 ~ 30min), and brush them with a brush after most of the scale is dissolved. After cleaning with solvent oil or banana water, the surface of the parts can generally dry by itself.

对于橡胶件和有机玻璃油标等非金属零件，不要使用碱性溶液，可以用纱布沾上酒精进行擦拭，使油污粘附在纱布上，再将纱布放在酒精中洗净。如此反复擦拭，即可将油污擦净。

For rubber parts, plexiglass oil standard and other non-metallic parts, do not use alkaline solution, you can use gauze dipped in alcohol to wipe, so that the oil adheres to the gauze, and then wash the gauze in alcohol. So repeatedly wipe, you can wipe the oil.

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