Did you fit the cutting disc properly

Correct installation of cutting disc:

Prepare Zhibiao cutting disc and two flanges of the same size.

With the iron-ring side facing up, install only one flange → Wrong installation.

Fit two flanges, iron-ring side inward, misaligned with the central shaft → Still wrong.

✅Correct operation:

Install two flanges, keep the iron-ring side inward, align with the central shaft.