1. After the aging of the laser tube, it is necessary to replace the new laser tube to keep the equipment working normally.

2. Check whether the optical path adjustment is appropriate, not appropriate, please readjust.

3. Check whether the optical component is damaged, and replace it with a new one.

4. Check whether the cooling system failure, if yes, maintenance.

5. Check whether the light fiber aging, if so, replace the fiber to maintain stable laser transmission.

6. Check the input and output voltage and current of the power supply to ensure that the power supply works normally.

7.Considering the focus position, nozzle distance, cutting speed and auxiliary gas and other factors, appropriate adjustment to maintain the best working condition.