First up, there are two procedures on that document, one for machines with a cab, the other for machines with a canopy. The procedure applicable to the OP's machine starts right at the bottom of page 6.
It looks like the connector is kind of a butt splice on one end that crimps on the power wire, then plugs into the harness connector.
See the drawing below. To install the new Part Number of fuse block the ring terminals (marked C) have to be cut off the two large 8 SWG wires (marked B & E). Those wires are 177-OR & 178-GR that are the main power feeds into the two bus bars of the fuse box. If you recall we talked about those earlier.
The procedure lists 2 x 8N-1545 Sockets that have to be crimped on the the wires B & E later in the procedure. IMO any crimper suitable for wires of 8 SWG size will work. Basically what I think the prcoedure is trying to tell you is that you'll need more than just an automotive wire crimper to do the job because of the diameter of those two wires. It will need a good crimper machine though, because the last thing you want is those two joints heating up in operation as a result of bad internal contact.