It took quite a bit of force, more than I expected to use, but it did come off. The bottom of the cover has four slender plastic rods with ball shapes at the ends about an inch long and about 3/16" in diameter that extend from the bottom of the cover slightly inboard at four locations. The cover with its four rods at the bottom presses into four rubber receiving mounts with holes in their centers. You line up these four mounting points and press the cover down until it locks into place. I put a little silicon grease on each of them to make it easier to remove in the future.