The turbo fan baffle and turbo fan are installed on the left side of the extruder, you will need M3*6 bolts. Click the link to watch the relevant video:

Here are the steps:

Step 1 – Take the turbofan baffle and bolts (M3*6) out of the tool bag.

Step 2 – Loosen the bolts of turbo fan.

Step 3 – Attach the turbofan baffle onto the left side of the extruder set.

Step 4 – Fasten the turbofan baffle with bolts.

Step 5 – Tighten the bolts of turbo fan again.

The installation finished.