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Operating manual Soyer Bolzenschweißtechnik
69
13.4 Weld defects and their causes
The most common weld defects, their possible causes and how to troubleshoot them
are described in the following.
If the fault cannot be remedied as described, please contact Heinz Soyer
Bolzenschweißtechnik GmbH.
Faults
Possible cause and troubleshooting
Device cannot be
switched on.
Check the mains supply fuses.
Device does not
weld, there is no (or
very little) spark
formation.
Device is not connected to the mains or not switched on.
Connect the device to the mains supply and switch it on. The LED
displays light up briefly when switching on.
Welding cable, control cable or gas hose are not correctly connected or
damaged.
Connect the cables or gas hose correctly or examine for damage,
replace if necessary.
Connection plugs or sockets of the device are damaged.
Have the plugs or sockets replaced by SOYER
®
customer service.
Both earth cables are not (or not correctly) connected, or earth clamps are
not fastened to the workpiece.
Connect the earth cable, fasten the earth clamps to the workpiece.
Weld points or earth connection points on the workpiece are not bare metal.
Prepare the workpiece or studs.
Height of lift or immersion depth is not set correctly.
Set the height of lift or the immersion depth correctly in accordance
with the operating manual for the stud welding gun.
Gas flow rate is set too high, i.e. greater than 12 l/min (the arc is blown
out).
Set the gas flow rate to a lower value.
Stud sits too loose in the stud chuck.
Press the stud chuck together or reclamp.
Defect on the controller or on the welding gun.
Contact SOYER
®
customer service.
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