Use the #J1 Phillips head screwdriver to unscrew six #J1 Phillips head screws but do not remove the screws.

Do careful to not remove the screws until the entire fan is taken out.

Use the #J1 Phillips head screwdriver to unscrew one 5mm #J1 Phillips head screw from the side of the fan closest to you.

Use the #J1 Phillips head screwdriver to unscrew three 7 mm #J1 screws from the top corner of fan.