01. Check and replace contacts regularly
With the increase of the aperture of the wear contact head, the arc becomes unstable, the appearance of the weld becomes bad or the welding wire stick (burn back); The end of the contact end will be sticky splash, wire will become uneven; The contact is not tightened. Threaded connections will heat up and weld to death.
02. Clean and replace spring hoses regularly
After a long time of use, the spring hose will accumulate a large number of iron powder, dust, wire plating chips, etc., which will make the wire feed unstable. Therefore, it is important to clean regularly. You can roll it up and pat it to shake off the buildup and blow it off with compressed air. Brush the grease from the hose into the oil and blow it off with compressed air. If the spring hose thread is wrong or severely deformed and bent, replace the hose. When replacing the pipe, ensure that the diameter and length of the welding wire are appropriate and the cutting surface is free of burrs.
03. Check insulation bushing
If the insulation ring is removed during welding, the spatter will adhere to the inside of the nozzle, connecting the nozzle to the live part. The torch may burn out due to short circuit. At the same time, in order to make the protective gas flow evenly, insulation sheath must be installed.
