Functional breakdowns

Error	Cause
	→	Error elimination

No electric arc is generated,	Stud without ignition tip or centre mark too deep for the ignition tip
even though system is	→	Use stud with ignition tip or reduce centre mark
ready for operation
ready for operation	Fault in Stud Welder control and/or at the Stud Welding Pistol

	→ Inform SOYER Customer Service

	Stud too loose in stud holder
	→ Press stud holder together and/or tighten it

Stud thread scorched	Stud holder worn down
	→	Replace stud holder

Varying welding results	Incorrect welding energy setting
	→	Set welding energy

	Cable connections are too loose, transition resistances are generated
	→ Check all cable connections and cable clamps to ensure tight fit

	Stud is too loose and/or has not been inserted into the stud holder until the
	stop is reached
	→ Press stud into the holder until it stops, if necessary, replace stud holder

	Magnetic blow effect. The electric arc is pressed into a certain direction
	→ Alter ground clamp attachment, place iron parts to the edges and/or rotate
		welding pistol

Intensive sparking,	Welding energy setting too high
stud flange almost	→	Reset welding energy using the energy range selector

fully melted away

Stud not welded with complete flange surface, deficient weld joint strength

Welding energy setting too low

→Reset welding energy using the energy range selector

Poor ground connection

→Ensure tight fit of ground cable and ground clamps, if necessary tighten

Workpiece surface too soiled

→Clean workpiece surface

Stud weld base deformed

→Use new welding studs

Incorrect setting of stud projection to the stud holder

→Set stud projection to 2-3 mm (distance between stud holder and stud weld base)

Incorrect spring pressure setting

→Set spring pressure

Tilted positioning of welding pistol

→Ensure that all 3 feet of welding pistol are evenly and simultaneously positioned on the workpiece

9-37