To adjust a blum hinge, first determine whether the problem requires a height, depth or side-to-side adjustment. Turn the screws at the top and bottom of the clip for a height adjustment and the front screw for a side-to-side adjustment. For a depth adjustment, turn the rear screw clockwise to decrease the overlay of the door, and counter-clockwise to increase it. Use an appropriate screwdriver for this project.
A height adjustment is appropriate when the top and bottom of the door do not align with the edge of the cabinet. This task involves two screws, located at the top and bottom of the clip. Loosen these screws slightly, and hold the door up or down depending on the problem. Re-tighten the screws.
Depth adjustment determines how far in or out the door stands relative to the adjacent cabinet or doors. Loosen the back screw, and push or pull the door depending on the problem. Fasten the screws to hold the door in the new position.
A side-to-side adjustment is appropriate when there are uneven or insufficient gaps between adjacent doors or improper alignment between the door and the frame of the cabinet. Rotate the front screw when conducting this type of adjustment. The direction of rotation depends on the side of the door the hinge is attached.