1. Place main mechanism inside of one half of casing.
2. Get the insulation paper and wrap it around the heating coils. There are tabs that it will clip into around the hairdryer
3. Take the same half of casing and insert switches into the assigned spaces
4. Attach the outside black switches to the inner switches (Tape can help hold these in place while you get everything else situated, but it should be removed before complete reassembly)
5. Get the other half of casing and attach the two together with the mechanism still in place. (Keep the front and back gratings in place when attaching.)
6. Screw in back grating and all around the hairdryer. The larger screws go in the handle, and the small screws go in the head. (note, make sure the fan does not jam inside of the hairdryer when reassembling, or else the hair dryer will not work.)
After step six, reassembly will be complete.