活塞连杆总成装人气缸时，一般使用紧箍工具。紧箍工具虽使用简单方便，但在使用几次以后，铁箍就变形失圆，操作时易使活塞环受损甚至造成断裂。为克服上述缺陷，我们利用柴油机废缸套改制成安装活塞环专用工具，使用效果很好。其改制方法是：1．选用与使用缸套直径相同且前部 Piston connecting rod assembly into the cylinder, the general use of hoop tool. Although the use of tight hoop tool easy to use, but after using several times, the ferrule deformation circle, easy to make the piston ring damage or even cause fracture. To overcome the above shortcomings, we use the diesel waste liner modified piston ring installation of special tools, the use of good results. The restructuring method is: 1. Selection and use of the same cylinder liner diameter and front