... from the bottom surface of roller. Click the axis A_1 of the roller, then click the axis A_1 of the bushing. Click the bottom surface of the roller, then click the top surface of the ... axis A_1 of the bushing, then click the axis A_1 (on the left hole) of the roller_link_plate. Click the bottom surface of the bushing, then click the bottom surface of the roller_link_plate. ... 16 Repeat the placement of roller to the bushing located at the right side of the assembly. The last operation of this sub-assembly will be to assemble another roller_link_plate...