旧柴油机进行交易时,如何鉴别其优劣呢?根据理论和实践经验,可以采取一问、二看、三试,以试为主的鉴别方法。 一问 询问旧柴油机的购置时间、用途及现在出售的原因,询问以往的修理情况,更换过哪些主要部件,询问在使用中有什么问题,以便对旧柴油机有一个较全面系统的了解。 Old diesel engine trading, how to identify its advantages and disadvantages? According to theoretical and practical experience, you can take a question, second look, three tests, mainly to test the identification method. I asked about the timing, purpose and the reason for the sale of old diesel engines. I asked about the previous repairs, what major parts were changed, and asked what problems existed during the operation so as to have a more complete and systematic understanding of the old diesel engines.