结合武威南机务段东风4B型机车多年来发生的静液压管路的断裂统计 ,进行了综合技术分析和研究 ,提出了相应的预防对策及消除该类故障的建议。 Combined with the fracture statistic of hydrostatic pipeline which occurred in Dongfeng 4B locomotive of Wuwei South Depot for several years, a comprehensive technical analysis and research are carried out, and corresponding preventive measures and suggestions for eliminating such faults are proposed.