一、取出油缸中折断的活塞环 上海-50等型拖拉机的液压油缸活塞上采用的是铸铁活塞环。有时活塞环折断,卡死在油缸中,因没有专用工具,取不出来。这时可将液压油缸放在烘炉上加温后,用木锤在壳体上敲打,活塞就会带着折断的活塞环掉出来,甚是方便。 二、巧拆气缸盖 有的机手在拆卸气缸盖时,拧掉气缸盖螺母后,气缸盖不易取下来,就用螺丝刀硬撬气缸益与气缸垫的接合处,有时把气缸垫损坏,有时把气缸接合面撬坏。 下边介绍一种巧拆气缸盖的方法:拧掉气缸盖螺母后,先用木锤或锤把敲击气缸盖四周,然后再用摇把转动曲轴,借助活塞压缩行程中空气的冲击力, First, remove the broken cylinder piston ring Shanghai -50 type tractor hydraulic cylinder piston is cast iron piston ring. Sometimes the piston ring broken, stuck in the fuel tank, because there is no special tools, can not get out. At this time the hydraulic cylinder can be heated on the oven, hammering on the shell with a wooden hammer, the piston will fall off with a broken piston ring, it is very convenient. Second, clever disassemble the cylinder head Some hands remove the cylinder head, screw off the cylinder head nut, the cylinder head is not easy to take down, use a screwdriver to pry cylinder benefits and cylinder gasket joints, and sometimes the cylinder pad damage, and sometimes Pry the cylinder joint. The following describes a clever demolition of the cylinder head method: Screw off the cylinder head nut, the first hammer or hammer percussion cylinder head around, and then use the crank to rotate the crankshaft, with the piston compression stroke impact of air,