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BOC Smootharc Advance III MIG 425R & 555R Operating manual
Installation for TIG process
5.2 Installation for TIG process
1 Connect the TIG torch power into the negative (–) terminal
2 Connect the work return lead into the positive (+) terminal
3 Connect gas hose directly to gas regulator.
OPTIONAL EXTRA
TIG torch purchased separately from BOC. Part No. MMA-TIG.
Installation for MMA process
5.3 Installation for MMA process
2
to be DCEN.
1 Connect the electrode holder to the positive (+) terminal
machine and fasten it clockwise tightly (DCEP).
1
.
2 Connect the work return lead into the negative (–) terminal
machine and fasten it clockwise.
3 Please note that for manual metal arc (MMA) welding the electrode
holder can be switched to the negative pole of the welding machine if so
required by the specification of the electrode.
4 To change poloraity to DECN, swap the electrode holder to the negative
(–) terminal
2
and the work return lead to the positive (+) terminal
1
of the
2
of the
1
.
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