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我段自1973年内燃机车(东风、东风_3型)上马开始,一直使用1.0%浓度的 NL 防锈油冷却水,情况良好。从1979年4月开始用罗马尼亚进口的 ND_2型内燃机车以来,我段仍采用NL 防锈油,直至1980年8月对 ND_2型64、75、65、69、58、56号等机车相继进行了第一次架修。由解体检查发现,整个冷却系统污垢严重,缸套周围厚厚地包围着一层油垢,最厚处达6毫
My paragraph since the 1973 diesel locomotive (Dongfeng, Dongfeng _3 type) began, has been using 1.0% concentration of NL antirust oil cooling water, in good condition. Since the start of the ND 2 diesel locomotive imported from Romania in April 1979, NL anti-rust oil has been used in this section until August 1980. The locomotives ND 64, 65, 65, 65, 59, 58 and 56 have been successively carried out The first frame repair. Disintegration inspection found that the entire cooling system, a serious dirt around the thick cylinder surrounded by a layer of grease, the thickest at 6 milli