[Porsche84]

I use a piece of 1/2 inch brass rod, about 8 inches, and a hammer. A few taps while roating the hub and it's off. To adjust the slack, I use an allen in the screw and turn the hub to tighten it. Not too much force. Try it until you are comfortable that it is tight enough without being over tight. Don't overtighten the allen when you lock the nut, they do break!