First take a screwdriver and gently pry the white plastic ring from the fan.
Once the ring is off, take the feet of the rubber coupling and insert them in the small
holes closest to the center of the ring.
Now refer back to the same area where you pried the white plastic ring.(which will be the center of the fan).
You will see 2 small grooves, place the feet into the grooves.
Press the center of the coupling into the center of the fan.
Note: If the rubber coupling or gear is damaged a new one needs to be replaced. The part can be purchased at( insert link)
