Begin on failure analysis of a damaged transmission countershaft of HINO model ZM440 15t truck, this paper presents their study on the repairing process by bead welding, bow to recondition the gear bore hole and realigning of the bent shaft.

• 从失效分析入手,探讨了日野ZM440型15吨载货汽车变速器副轴损坏修复的堆焊工艺,提出了齿轮内孔修复及变速轴弯曲矫正的方法。