1. Remove the headband of the welding mask. Pay attention to the fastening knobs and washers on both sides, and the paddles for adjusting the wearing angle of the welding mask need to be removed for later use. Keep the headband for future use.

2. Connect the helmet connecting ring to the welding mask with the left and right fastening knobs on the removed headband assembly, and pay attention to the need to install a pick for adjusting the wearing angle.

3. Put the schematic diagram of the helmet into the helmet connecting ring, and hook the edge of the helmet with hooks on both sides of the connecting ring.

4, adjust the size of the connecting ring to adapt to the size of the helmet, so that the connecting ring is tightly buckled on the helmet shell.

5. Adjust the wearing angle adjusting paddle on the welding mask to adjust the wearing angle; Adjust the knob on the side of the welding mask to adjust the friction required for lifting and lowering the welding mask.