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我矿ＤＺＬ－５０铲运机使用年限长，设备老化故障随之增多， 尤其是制动系统灵敏度降低，制约了产量的增长，影响设备运行安全，急需加强这一系统的故障判断与技术维修。 １存在问题 （１）坡道上铲装物品、运送物品刹车系统制动困难，操作不灵便。 （２）制动气压、油压降低
The long service life of DZL-50 scraper of mine and the increase of equipment aging failure, especially the decrease of brake system sensitivity limit the increase of output and affect the operation safety of equipment. It is urgent to strengthen the fault judgment and technical maintenance of this system. 1 problems (1) shovel ramp on the ramp of goods, brake braking system difficult, inconvenient operation. (2) Brake pressure, hydraulic pressure reduction