VATECH EzRay Air Wall Manuel D'utilisation page 48

Appendix
1. Assemble the rotating rectangular cover to the Cone of the Main body.
2. Turn the Outer Ring of the rotating rectangular cover to adjust the angle roughly.
3. Turn the Inner Ring of the rotating rectangular cover to fine-tune the angle.
40
For assembling the rotating rectangular cover to the Cone, turn the
rotating rectangular cover 45 degrees and check the Click sound to
make sure the assembly is complete.
Disassembly method of the rotating rectangular cover is the same as
the assembly method. Refer to the NOTE mentioned below stage 1.
EzRay Air Wall (VEX-S300W) User Manual