故障一一台1075型联合收割机,因液压驱动变量泵垫片(供油泵与变量泵之间的垫片)漏油而拆检。在更换该垫片时,供油泵中的从动齿轮间管掉出,而驾驶员误把间管放进供油泵的吸油管中,结果造成巨大损失。故障现象:维修后收割机先是只能前进,不能后退;后来前进也不行了。故障分析:供 Failure A Taiwan 1075 combines harvesters, due to oil-driven variable displacement pump gasket (oil pump and variable pump gasket) and the demolition of oil. When this washer was replaced, the driven gear in the feed pump fell out of the way, and the driver mistakenly put it into the suction pipe of the feed pump, resulting in a huge loss. Symptoms: After the first maintenance of the harvester can only move forward, can not back down; then move forward will not work. Failure Analysis: for