我们在大修上海—50拖拉机时,刹车制动器的油封买不到。修车急用,怎么办?经车间技术人员和修理工共同研究,决定在制动器轴上下一个套。套的外径为60毫米,内径为55毫米,长25毫米,往轴上装前,先把套加热到200℃以上,装到轴上降温后,套和轴就成为一体了。用这种方法我们试修了两台上海一50拖拉机,一年多来工作情况良好。用这种方法既不 We overhaul the Shanghai -50 tractor, the brake can not buy the oil seal. Emergency car repair, how to do? The workshop technicians and repair workers to study together, decided to set a brake shaft. Set of outer diameter of 60 mm, an inner diameter of 55 mm, length 25 mm, to the shaft on the front, the first set of heating to 200 ° C above, mounted on the shaft cooling, sleeve and shaft to become one. In this way we tried out two Shanghai-50 tractors for more than a year in good working order. Use this method neither