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1故障现象DF4D型3080号机车在运行中出现前增压器机油压力低,前、后增压器机油压力差在柴油机最高转速为1 000 r/min时超过限定值,柴油机出现易停机的现象。且机车牵引长交路运行时发生途中停机后在热机的情况下起机困难,但回段库停一段时间后起机,前增压器机油压力值却正常。2
1 Trouble phenomenon DF4D type 3080 locomotive before the operation of the supercharger oil pressure is low, before and after the supercharger oil pressure difference exceeds the limit when the maximum diesel engine speed of 1 000 r / min, the diesel engine prone to shutdown phenomenon . And long-distance locomotive traction operation occurs after stopping on the way in the case of hot machine starting difficulties, but back to library stopped after a period of time, the former supercharger oil pressure value is normal. 2