哈密机务段配属东风4 型机车 10 7台 ,其中 86台装有ＶＴＣ2 5 4— 13型增压器。近年来 ,由于我局运输能力逐年提高 ,机车牵引货物量增加 ,加之我段机车运行区段风沙大、弯道多 ,东线有 12 5‰的长大坡道 ,西线有百里风口 ,增压器工作环境恶劣 ,故障发生较为频繁 ,严重影响了 Hami locomotive depot belongs to Dongfeng 4 locomotive 107 sets, of which 86 are equipped with VTC2 5 4- 13 supercharger. In recent years, due to the increase of transport capacity of our bureau year by year, the volume of locomotive traction goods has increased. In addition, there are large sandstorms and corners in the running section of the locomotive. There is a 125-o-long uphill ramp in the east line and a Baili- Turbocharger poor working environment, the failure occurred more frequently, seriously affected