Insert special bolt into the preset hole of C form parts ,where the bolt will be fixed into the threaded hole of wedge ,then screw the bolt on with a socket spanner until the first nut drops .

• 将专用螺栓插入C形无件预留孔与楔块的螺纹孔相连，用套筒扳手拧紧螺栓直到第一个螺帽自行断落。