The last drawing makes me cringe, and amazed that it comes from factory instructions. One wrong move and the sling under the mounting boss for a slotting attachment would slip right off the end. I'd at least put a stout pin through the hole to trap the sling. Kind of a sharp edge in that area as well. If you use a lift eye threaded into the top of the ram, shoot for 1-1/2 diameters of thread engagement, and use a good quality lift eye, not some made in PRC POS. Spending the extra $$ on a USA made Crosby is cheap insurance. Do yourself a favor and use purpose built slings, and not rope. Those drawings look like they came from "the good old days"!