All trucks loaded at Lemont must be equipped to accept the 7 prong API / ATA approved male grounding connector. The 7 prong female receptacle should be mounted on the right side, middle of the trailer, adjacent to the side manifold.
BOTH THE TOP PIN (the larger pin) AND THE CENTER PIN of the plug must be connected to the trailer frame by a wire approximately 4 to 5 inches in length. (See the illustrations below.)
