The rotator has three parts: The rotator (mounts on mast); the control box; and a four conductor cable to connect the two. The screw lugs on both ends are numbered, connect 1 to 1;2 to 2; 3 to 3; and 4 to 4. Plug the control box into the A/C wall plug. Rotate control full clockwise and wait for the rotator to synchronize, then full counter-clockwise and wait. If the control box indicates that the rotator is at the end of its travel but the control is not, there is a small manual switch on the bottom that will advance the indicator one click at a time to synchronize. The lugs on the rotator may be under a small metal plate with an oval hole (for the 4-strand cable).