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茅箭区张顺华自营的一台神牛—25型拖拉机,在一次运输作业时,突然发生了拖车不能升起自卸的故障。检查后发现,该机液压分配器上的单向阀套装反了,且高于分配器的原装配平面。这时,即使将单向阀弹簧压死,单向阀上盖距分配器安装平面仍有3毫米的余隙,加之单向阀上盖的四个螺栓受力不均,致使单向阀在使用中折断,进而导致拖车不能升起自卸。当更换了新单向阀总成后,故障排除了。没过两天,这台车又发生了拖车升不起
Maofang District Zhang Shunhua own God Buffalo -25 tractor, a transport operation, the sudden failure of the trailer can not be raised and dumped. Check and found that the machine hydraulic distributor on the one-way valve set anti-and higher than the original distribution plane distributor. At this time, even if the one-way valve spring crushed, check valve cover from the distributor installation plane is still 3 mm clearance, plus one-way valve cover the four bolts uneven force, resulting in one-way valve Broken in use, which led to the trailer can not be raised and dumped. After replacing the new one-way valve assembly, the troubleshooting is done. A couple of days later, the trailer was up again