1. First, we need to take out the vertical pipe and base of the fan. At this time, it is convenient to insert the riser into the mounting hole of the chassis, and then tighten the nut at the bottom of the chassis.

2. Secondly, it is necessary to take out the lifting rod from the base pipe, and then tighten the middle fixing forcibly. After the installation hole of the main engine head is forcibly inserted into the circular tube slot, tighten the fixing screw with a screwdriver.

3. Finally, insert the fan blade into the motor shaft, tighten it with the fan blade, insert the net into the rear net cover, then insert the front net cover, and tighten the screws in the ring with a screwdriver.