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    首页 >> 装载机变速操纵阀出现故障怎么办?
    装载机变速操纵阀出现故障怎么办?
    2014-9-27 11:16:28

    由于变速操纵阀在装载机作业过程中使用极为频繁,因此它经常发生故障,现在教给大家变速操纵阀出现故障的处理方法,希望对广大装载机用户能有所帮助。

    1、装载机制动后挂不上挡
    装载机制动后突然不能行走,这时发现变速压力表指针指向零,但工作装置和转向系统工作正常。这时首先要判断是制动系的故障还是变速器的故障,可通过观察变速压力表的指针是否指向零来判断。如果变速压力表指针指在正常范围内,装载机仍不能行走,说明故障出在制动系上;如果变速压力表指针指向零位,则说明故障出在变速操纵阀上。这时可将仪表盘上的动力切断阀开关,扳在不切断动力的位置上,然后加大油门,观察变速压力表指针是否上升,如不上升,可用铁器轻轻敲击变速阀体的表面,使制动阀杆受振动,在弹簧的作用下而自动回位。如仍没有排除故障,就必须把变速阀体部分全部拆下,清洗检查,查明原因后进行排除。
    After the loader brake suddenly can not walk, then found speed gauge pointer to zero, but the work unit and the steering system is working properly. Then we must first determine the failure or malfunction of the transmission brake lines, by observing speed gauge pointer is pointing to zero to judge. If the speed gauge pointer refers to within the normal range, loaders still can not walk, indicating a fault in the braking system; If the speed gauge pointer to zero, then the fault lies in the speed control valve. Then can the power shut-off valve on the dashboard switch, pull the power is not cut off position, then stepped on the gas, observe speed gauge pointer is rising, if not rise, can shift the body's iron gently tap the surface , the brake valve stem by vibration, under the action of the spring and automatic back. If still no troubleshooting, you must remove all of the shifting body part, cleaning inspection, identify the reason for the exclusion.
    2、装载机变速压力突然增高或超过规定压力
    装载机起动后,突然发现变速压力表损坏。此故障一般是由于脏油进入变速阀,有杂物将变速阀的减压阀杆的斜孔堵塞而造成的。当发现变速压力表损坏后,应立即停车,将变速操纵阀拆下,疏通斜孔、清洗阀体,再将变矩器的滤清器清洗干净,此故障即可排除。
    After loaders start, suddenly found speed gauge damage. This failure is generally due to the dirty oil into the shift valve, debris will be inclined hole valve lever shift valve blockage caused.After the discovery speed gauge damage should be immediately stopped, the speed control valve removed, dredge inclined hole, cleaning the body, then the torque converter filter clean, this failure can be ruled out.