近年来,有不少驾驶员、汽修人员,对汽车后桥进行日常的例行保养和一、二、三级保养时疏忽了后桥壳上的小小通气塞。特别是在农村乡镇或工程施工处进行运输工作时,汽车后桥的通气塞常被泥土弄脏,长期得不到保养,极易堵塞,引起半轴油封漏油,导致从制动鼓处漏出齿轮油,差速主动齿轮的突缘油封甩油或其它部位漏油。 In recent years, many drivers, auto repair staff, routine routine maintenance of the car after the bridge and one, two, three maintenance negligence on the rear axle housing small breathable plug. Especially in the rural towns or construction work at the transport work, the car rear axle ventilation plug often dirty soil, long-term lack of maintenance, easily blocked, causing half-shaft oil seal leakage, leading to leakage from the brake drum Department Gear oil, differential drive gear flange oil seal oil or other parts of the oil spill.