8K型电力机车脚踏单独缓解系统较为复杂 ,工作很不稳定 ,常常发生故障。近年来的统计结果表明 ,这种系统的故障率占制动机总故障的 2 0 %以上 ;114# 脚踏缓解电空阀的故障尤为突出且其结构复杂 ,解体检修时须将机车总风缸空气排出 ,很不方便。因此有必要对机车脚踏单独缓解系统 8K-type electric locomotive pedal alone to ease the system more complex, very unstable work, often failure. In recent years, the statistical results show that the failure rate of such a system accounts for more than 20% of the total number of brake failures. The failure of the 114 # pedal relief electro-pneumatic valve is particularly prominent and its structure is complicated. When the vehicle is disassembled and repaired, Cylinder air discharge, very inconvenient. It is therefore necessary to mitigate the locomotive pedal alone