Picture 4 & 5 demo the hinges effect.

5. Remove the protective film/tape from the double sided tape
6. Carefully lower the rail into position, trying not to allow it to stick yet.
7 Re-insert the bolt
8 Push down on top of the rail and also push it against the side of the cabinet to stick it in position. Do this repeatedly all the way along the rail until stuck in position.
9 Remove the masking tape and tighten the bolt and you are done. (pic 6)