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1故障情况链式手制动机拉杆3根圆钢组焊处裂纹现象较突出,严重影响了车辆运行安全。运用部门在日常检查中经常发现手制动机拉杆裂纹、折断故障及手制动机拉杆托架座脱焊故障。经统计,2007年1月—2009年7月上海铁路局杭州北车辆段共发现上述故障53件,其中,手制动机拉杆裂纹、折
1 fault conditions Chain Hand Brake lever three round steel welding cracks more prominent, seriously affecting the safety of vehicles. Use of the department in the daily inspection often found that the hand brake lever crack, break the fault and hand brake lever bracket seat off welding failure. According to the statistics, from January 2007 to July 2009, a total of 53 pieces of the above faults were found in the Hangzhou North Vehicle Depot of Shanghai Railway Bureau, among which hand brake lever cracked and folded