Gently pry the door away from the metal enclosure. Next, remove the bar on the side of the enclosure. Pry a flathead screwdriver between them and gently remove it. Finally, remove the black gear (above the green one, removed here) which will reveal one more, tiny screw that needs to be removed. At this point you may remove any remaining latches connected to the unit. Simply pry with a small flathead screwdriver and remove them.