Trouble one: step down the foot pedal welder does not work, the power indicator does not light: a. Check whether the power supply voltage is normal; check whether the control system is normal. b. Check whether the foot switch switch is normal. c. Check whether the power supply voltage is normal. d. Check whether the power supply voltage is normal. b. Check whether the foot switch contacts, AC contactor contacts, split shift switch is in good contact or burned.
Failure 2: power indicator light, the workpiece pressure does not weld: a. Check whether the foot pedal travel is in place, whether the foot switch contact is good. b. Check whether the pressure lever spring screw is properly adjusted.
Failure three: welding undue spatter: a. Check whether the electrode head is oxidized seriously. b. Check whether the welding workpiece is serious corrosion poor contact. c. Check whether the adjustment switch is too high gear. d. Check whether the electrode pressure is too small, whether the welding program is correct.
Trouble 4: serious weld indentation and extrusion: a. Check whether the current is too large. b. Check whether the welded workpiece is uneven. c. Check whether the electrode pressure is too large, the electrode head shape, cross-section is appropriate. d. Check whether the electrode pressure is too small, whether the welding program is correct.
Trouble 5: Insufficient strength of the welded workpiece: a. Check whether the electrode pressure is too small, check whether the electrode rod is fastened well. b. Check whether the welding energy is too small, and whether the welded workpiece is corroded badly, making poor contact with the welded joints. c. Check whether there is too much oxide between the electrode head and electrode rod, electrode rod and electrode arm. d.Check whether the cross-section of the electrode head is enlarged due to wear and tear resulting in reduced welding energy. e. Check whether the electrode and copper soft joint and bonding surface is seriously oxidized.
Trouble 6: welding AC contactor rattles abnormally: a. Check whether the AC contactor inlet voltage in welding is lower than its own release voltage of 300 volts. b. Check whether the power supply leads are too thin and too long, resulting in too large a voltage drop in the line c. Check whether the network voltage is too low to work properly. d. Check whether the main transformer has a short-circuit, resulting in too high a current.
Failure 7: welding machine overheating phenomenon: a. Check whether the insulation resistance between the electrode holder and the body is bad, resulting in a local short circuit. b. Check the inlet pressure, water flow, water supply temperature is appropriate, check whether the water system is clogged with dirt, resulting in overheating because of the cooling of the electrode arm, electrode rod, electrode head. c. Check whether the copper soft joint and electrode arm, electrode rod and electrode head contact surface Whether the oxidation is serious, resulting in increased contact resistance and severe heating. d. Check whether the electrode head cross-section due to wear and tear to increase too much, so that the welder overload and heating. e. Check whether the welding thickness, load duration exceeds the standard, so that the welder overload and heating. f. Check whether the welding thickness, load duration exceeds the standard, so that the welding machine overload and heating.
The above is the spot welder in the use of the process of problems that may arise, so in the sale and purchase of double deal welder, you can now a systematic training, and then on the welder of these problems can be listed as an exhaustive solution, of course, save a lot of manpower.