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装载机制动系统中,选择阀的作用是切断或接通双管路气制动阀通往变速纵阀上切断阀的气路,使装载机自动脱档切断驱动力矩,提高装载机制动可靠性,保证作业和行驶安全。装载机正常行驶和作业时,选择阀拨杆应在位置A(见附图),打开气路。在装载机上、下长坡、坡道作业及坡道窄路调头时,拨杆应扳到位置B,切断气路,以防坡道踏制动后起步时产生滑坡,下坡踏制动时速度过快。制动系统选择阀的常见故障有顶杆卡住和
Loader brake system, the role of the selector valve is to cut off or connect the two-way gas brake valve leading to the variable speed valve on the valve off the gas, the loader automatically off the file to cut off the driving torque and improve the reliability of the loader brake , To ensure homework and driving safety. Loader normal operation and operation, select the valve lever should be in position A (see photo), open the gas path. In the loader, the next long slope, ramp work and narrow road turn around, the lever should be pulled to position B, cut off the gas line to prevent landslides when starting after the ramp tread braking, downhill braking Too fast. Brake system selection valve common failures have mandrel stuck and