1) If the cooling water is polluted or has not been replaced for a long time, it can be solved by replacing the cooling water and cleaning the ultraviolet glass filter tube and xenon lamp.

2) If the focusing lens or resonator diaphragm of the laser is damaged or polluted, it should be replaced or cleaned in time.

3) The laser deflects the main light path, adjusts the total reflection and semi-reflection diaphragm of the main light path, and checks and rounds the light spot with image paper.

4) The laser is not output from the center of the copper gas nozzle under the focusing head. Adjust the 45-degree reflection diaphragm to make the laser output from the center of the gas nozzle.