Hanshen FKR350, Operation Manual

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18
2
、
MMA operation
（
basic function and method
）
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Welding with crater arc(self-location, crater arc action)
It is used to fill pit after welding, suitable for medium thickness sheet.
Welding with crater arc, funcation for filling welding pool at end and suitable for
medium thickness plate
Operatiing sequence
●
Turn diversion switch to “crater arc on” position, press gun switch on/off two
times to take welding.
Work time diagram
As above said, with gun switch possible to lock automatically, once welding finish,
welding current reduce, crater arc is taken.
But, in welding process, when crater arc broken more than 0.5 seconds, lock will be
released automatically.