东风4Ｂ型机车在运用过程中 ,柴油机连接箱甩油是惯性故障。它的危害是机油浪费 ,污染机车 ,严重时 ,漏泄机油进入主发电机 ,危及行车安全。判断、处理连接箱甩油这一故障较困难 ,修程较大 ,我们经过长期的实践 ,对该故障的判断、处理、预防积累了一定的经验 ,现总结出来供大家 DF4B locomotive in the use of the process, diesel engine oil thrown oil is inertia fault. Its harm is oil waste, pollution of locomotives, serious, leakage of oil into the main generator, endangering traffic safety. Judgment, the junction box oil throwing the failure of this more difficult, greater repair, we have long-term practice, the judge of the failure, treatment, prevention has accumulated some experience, are summarized for everyone