495Ａ型柴油机在拆修中常因更换缸套或活塞连杆组的某些零件而需取出活塞。在维修设备简陋的地方 ,大多采用以下两种方法 :一是用一木棍以连杆轴颈为支点撬出 ;二是采用木棍的一端顶住连杆上瓦座 ,拿锤子敲击木棍的另一端 ,从而将活塞连杆组顶出。此两种方法不仅费劲 ,而且还容 495A diesel engine in the repair often replace the cylinder liner or some parts of the piston rod assembly and need to remove the piston. In the simple place of maintenance equipment, the following two methods are mostly used: one is to use a stick to the connecting rod pin as the fulcrum pry out; the second is to use the end of the stick to withstand the link on the tile seat, take a hammer percussion wood The other end of the stick, which will be out of the piston rod group. These two methods are not only laborious, but also tolerate