针对在定期检修过程中出现的未按照制动缸直径不同装用不同120型控制阀的规定,造成车辆制动机制动力不符合规定危及行车安全等问题,进行了分析,提出了整改措施。 Aiming at the problems of different type 120 control valves which are not installed according to the diameter of brake cylinder during the regular maintenance, the problems that the braking force of the vehicle is not in conformity with the regulations and endangering the traffic safety are analyzed and the corrective measures are put forward.