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一台东方红-60型机车,在上坡时遇到障碍需要倒车,但这时却挂不上倒档。经分析判断,估计是倒档齿轮轴前后轴承走外圆,机车
A Dongfanghong -60 locomotive, reversing obstacles encountered on the uphill need to reverse, but at this time it is not upside down. After analysis and judgment, it is estimated that the reverse gear shaft before and after taking the cylindrical, locomotive