BMK-8 U /
BMK-12 W
48
Stud face deformed.
Use new welding studs.
Stud projection over stud holder incorrectly set.
Set distance between stud holder and stud face to 2-3 mm
Welding gun in tilted position.
Ensure that all three gun legs are simultaneously and evenly
positioned on the workpiece.
Lift not correctly set.
Set lift correctly.
Main switch returns to
position "0".
Stud lift not correctly set.
Set stud lift in accordance with the operating instructions for the
welding gun. Switch stud welder on.
You have pulled off the welding gun from the workpiece while main
current has been flowing.
Switch stud welder on again.
Insufficient mains supply, i.e. supply voltage below value required for
welding operation.
Connect stud welder without extension cable to mains supply. If you
need to use an extension cable, use one having a higher cable core
cross-section.
Arc breaks as gas pressure is too high.
Set gas pressure to the prescribed value.
Workpiece surface is poorly electroconductive - arc breaks.
Abrase surface.
LED "Transformer
overheated, pls. wait"
lights up.
There is not enough free space around the stud welder.
Make space available to eliminate heat accumulation.
Excessive welding sequence.
Please observe the admissible welding sequence.
LED "Lift test carried out
too long" lights up.
You have activated the lifting magnet too long or too often when testing
the lift.
Wait until the coil in the welding gun has cooled down.