drain lubricating oil first and remove the connecting bolt &suspend it from the upper box while the disassembly of gear box is required.
当减速箱需要拆开时,必须先放掉润滑油,然后拆掉联接螺栓,吊离上箱体。
installation of flange connecting valve is on diagram. lock down the connecting bolt after add sealing washer.
安装如示意图,加密封垫后均匀锁紧联接螺栓。
through the failure analysis of connecting bolt of down rod, it points out that it is not correct to put the thinner nut outer side if the double nut anti-loose method is adopted.
the existence of reticulation and mass shape ferrite, decarbonization at the screw thread surface layer which induced decline of fatigue strength of connecting bolt were also…