I bought a new Rhino setup today. Someone ran over or stomped the one I was using. I'd thought I'd just cut out the bad part and put in a connector but ended up buying a new one. Wasn't much price difference so now have a nice new clean hose and connectors. The new on comes with a label instructing you to loosen the black lock ring and to tighten the fitting on the hose then re tighten the black lock ring before you use it. The lock ring is marked tighten with an arrow and loosen with an arrow in the other direction. Doesn't take a lot of thought to figure it out.
Bob, Sandi & Marmaduke the Big Pug
SW OREGON 2004 Journey 39K, 330 Cat
If towing: a 2006 Mini Cooper or 1995 Wrangler