1. Wire feeding mechanism. Including whether the wire feeding torque is normal, whether the wire feeding conduit is damaged, and whether there is abnormal alarm.
2. Whether the gas flow is normal.
3. Whether the welding gun safety protection system is normal. (It is forbidden to close the welding gun for safety protection work)
4. Whether the water circulation system is working properly.
5. Test TCP (it is recommended to compile a test program and run after each shift)