Pic 1. Turn the gear until it shortens up like this, then turn the dial to the "free" position, and it's ready to install onto the hub body. Note the tab pointed out goes into the "Large" groove pointed out earlier. That's all there is to it!
Pic 2. Just cause it's soooooo pretty now!!!
I hope this clears up some confusion, and will get some people out there to clean up their hubs!