•With the weight stack tower (AB1) standing upright, slide it against the T-shaped bracket at the end of the main floor support (AT1) (with the “Front” sticker facing the rest of the machine). Line up the holes at the bottom of the weight stack tower with the holes in the main floor support. Secure the connection with two bolts (M10x70), four flat washers (10.2x22x2), and two nylon nuts (M10).