Welding operation
76 Operating Instructions Soyer Bolzenschweißtechnik
14.4 Welding defects and their causes
In the following, the most common welding errors, possible causes and
troubleshooting are described.
Please contact Heinz Soyer Bolzenschweißtechnik GmbH if a problem
cannot be solved.
Error Possible cause and troubleshooting
The device cannot
be switched on.
• Check the charging status of the battery.
The device does not
weld, no or only very
little sparking.
The battery is not sufficiently charged.
• Connect the device to the main power supply and charge the battery.
The green LED display for the charging status must light up.
The welding cable, control cable or gas hose are not connected properly or
they are damaged.
• Connect the cables or gas hose properly or check them for damage.
Replace them if necessary.
The connection plug or the connection socket of the device are damaged.
• Have the plug or socket replaced by the SOYER® customer service.
Both earth cables are not or not properly connected or the earth clamps are
not attached to the workpiece.
• Connect the earth cables, attach the earth clamps to the workpiece.
The welding points or earth connection points on the workpiece are not
metallically bright.
• Prepare the workpiece or stud.
The height of lift or the immersion depth are set incorrectly.
• Adjust the height of lift or the immersion depth correctly according to the
operating instructions for the stud welding gun.
The gas flow rate is set too high, i.e. higher than 12 l/min
(the arc is blown out).
• Adjust the gas flow rate to a lower value.
The stud is too loose in the stud chuck.
• Press or retighten the stud chuck.
Defective control or welding gun.
• Contact the SOYER® customer service.
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