行驶马达跨接泄压压力调整
travel motor crossover relief pressure adjustment
机具油路先导压力管路
implement circuit pilot pressure line
可控的先导压力
pilot controlled pressure
离合器先导压力油
clutch pilot pressure oil
履带制动器先导压力
track brake pilot pressure
先导压力弹簧座
pilot pressure spring cavity
先导压力阀
The twostep pressure valve