一台ZT-323A拖拉机因挂挡打齿拆卸检查,发现是离合器分离油缸严重泄油。进一步检查,泄油的原因是密封油封破损,致使由离合器助力器和离合器主泵来的压力油进入离合器分离油缸后严重泄漏,离合器分离的有效行程减少,分离不彻底,造成挂挡打齿。由于该机离合器分离油缸油封短缺,我们用E512制动器分泵油封(规 A ZT-323A tractor beating the tooth disassembly inspection, found that the clutch release cylinder serious drain. Further inspection, drain the reason is the seal seal damage, resulting from the clutch booster and clutch main pump to the pressure oil into the clutch after the cylinder serious leakage, the effective separation of the clutch to reduce the separation is not complete, resulting in hanging gear. As the clutch clutch cylinder oil seal shortage, we use E512 brake cylinder seal