In order to use the soldering machine well, our company has the following suggestions for the maintenance of the machine: 1. Do not put salt, acid, alkali and water on the soldering machine. 2. Use a clean cloth to wipe off dust and sundries from the machine every day before work. 3. Unplug the power plug when the machine is not in use, so as not to damage the machine for too long. 4. Before work every day, use a sponge to clean the excess tin slag and rosin residue on the soldering iron head, and then unplug the electricity. When the temperature is low, add tin to the soldering iron head for maintenance. 5 Do not pull the parts on the soldering machine forcibly. 6. Do not drop the machine and use a soldering iron to iron the plastic case. 7. Persons who do not move the electronic machine, do not open the machine without permission.