介绍了福州机务段近年来SS4G型机车轮对的故障情况,分析了产生故障的原因,依据现有技术条件提出了一些改进措施,并取得了不错的效果。 The fault condition of the wheelset of SS4G locomotive in Fuzhou locomotive depot was introduced in this paper. The cause of the fault was analyzed. Some improvement measures were put forward according to the existing technical conditions and good results were achieved.