1. Before inserting the welding machine into the power supply and starting to work, the contact points of the two upper and lower electrodes should be wiped clean to avoid leakage and short circuit.

2. Switch opening sequence: Control circuit direction - Welding current - Adjust level - Water source - Air source - Finally connect power.

3. After connecting the power supply, it is necessary to check again whether the electrical circuit is aging or damaged, whether the operating system is normal, and whether the casing is leaking electricity. If there is a problem, immediately turn off the power and replace it.

4. During welding, attention should be paid to keeping the surrounding environment dry, and the drainage volume should not be adjusted below 40 ° C according to the drainage temperature.

5. When it is found during the welding process that the ignition tube cannot generate an arc, it is strictly prohibited to increase the fuse and close the ignition circuit.

6. After welding is completed, the power supply should be cut off immediately, and all circuits should be cleaned up to avoid the risk of short circuit caused by accidental closing.