Use a #3 flat-head screw driver to increase or decrease tension on the hinges. You may need to remove the toe catch from the bottom hinge with a #2 Phillips screwdriver. Look at the top of the hinge and notice a groove. With the flat-head, press down firmly and turn counter-clockwise to increase tension and vice versa. Be careful not to over-tighten the hinge. Click here for more information.