New Pentair Pump Wiring

I need some help pleeeeeease. I just purchased a new Pentair Superflo 1HP Dual Speed pump. The good news, I installed the pump and it works great. You can hardly hear it. I'm having trouble with the Dual speed toggle switch. I'm obviously not putting the wires in the right place. I have 3 wires going from the wall to the pump. They are green, white and red. The green one is easy. I put the green one on the green screw. I guess that's the ground. I put the white one on the number 1 top slot. I put the red one on the bottom number 3 slot. Again the motor runs great. What I can't seem to figure out is the toggle switch. There are 3 colors. I put the white one on number 3 and I put the yellow one on number 2. Where does the black one go? I can't figure it out and I don't want to break the darn thing. Any suggestions would be greatly appreciated.