1故障现象中原特钢股份有限公司铁路运输部DFH5型0161号机车一直担当着公司货场的调车任务,虽然已经工作了20多年,状况还算良好。可是最近一段时间却出现了问题,最早出现的现象是起机困难,按下起动按钮经过45 s后柴油机转动但不发火,烟囱有时还有白烟冒出;后来就发展为不仅起机 1 Symptoms Zhongyuan Special Steel Co., Ltd. Ministry of Railways DFH5 0161 locomotive has been the company freight yard shunting tasks, although it has been working for more than 20 years, the situation is still fairly good. However, some problems occurred in the recent period. The earliest phenomenon was that it was difficult to start a crane. After 45 seconds after the start button was pressed, the diesel engine turned but did not get angry, and sometimes the smokestacks appeared in the chimney. Later,