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• The weld lies on top of the material and does not flow out.
Remedy: Increase the setting of the voltage selector switch
to a higher value.
• Holes are burnt in the material. Welding current too high.
Remedy: Reduce the current.
• Welding
Remedy: Reduce wire feed speed control so that wire has
time to fuse. (This fault can also be caused by contaminated
material or a poorly connected earth return).
• Arc tends to run up towards the contact nozzle. The cause of
this is probably a low wire feed speed- the setting has to be
increased. The wire slipping in the feed rollers pressure can
also cause it. It can be adjusted by adjusting the Pressure
Arm. A third cause could be a faulty contact tip, replace it.
On releasing the torch switch, welding will stop.
Self-Hold Function:
When the self-hold switch is ON, the arc is produced when the torch switch is
ON and then self-hold is maintained even though the torch switch is turned
OFF. To stop the welding, press torch switch once again and release it.
Welding will be stopped.
SPOT WELDING
In most cases spot welding is done from one side to join two overlapping
plates.
For spot welding, select the timer setting (t1) by switching on and setting the
spot welding timer on the front panel. The spot welding time can be set
Steplessly between 0.2 to 2 seconds.
SPOT WELDING PROCESS
The torch switch is pressed and welding starts. When the set spot weld time (t1)
has elapsed the process is automatically interrupted without the torch switch
needing to be released.
A new welding process commences when the torch switch is pressed again.
In spot welding Maximum plate thickness is about 2 mm. If the plates are of
different thickness, weld from thin side.
STITCH WELDING
This form of welding is suitable when working with very thin or inferior plate or
when the gap size is large since it gives cooler weld.
wire
seems
to
8
bounce
the
workpiece.
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