自从我局配属东风4Ｃ型机车以来 ,增压器故障一直是惯性故障 ,其故障形式多表现为转子卡滞、固死、漏油、扫镗。1　问题的提出　　通过对坏增压器的分解检查 ,发现大多数增压器径向轴承烧损、固死在轴承座内。径向轴承使用寿命的长短直接影响增压器的使用寿命 ,因此 ,我们对径 Since our bureau is affixed Dongfeng 4C locomotive, turbocharger fault has been an inertia failure, the failure of the form of rotor stuck more, solid death, oil spills, sweeping boring. 1 PROBLEM PROBLEMS Through the decomposition of the supercharger inspection, found that most of the turbocharger radial bearing burn, solid in the bearing seat. Radial bearing the life of a direct impact on turbocharger life, therefore, we on the path