Connecting An Optional Spool Gun; Setting Gun Polarity For Wire Type; Changing Polarity - Miller Millermatic 210 Owner's Manual

4-7. Connecting An Optional Spool Gun

4-8. Setting Gun Polarity For Wire Type

Wire Drive
Assembly Lead
+
Shown as shipped − Electrode Positive (DCEP): For
solid steel, stainless steel, aluminum, or flux core with
gas wires (GMAW).
Electrode Negative (DCEN): Reverse lead connections
at terminals from that shown above for gasless flux core
wires (FCAW). Drive assembly becomes negative.
OM-1325 Page 12
4
3

Changing Polarity

Work Clamp Lead
D
-
Positive Terminal Negative Terminal
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1
2
D
1 Barbed Fitting
.
If spool gun gas hose is
equipped with a pre-installed
barbed fitting, cut off fitting from
end of hose.
Connect spool gun gas hose to
barbed fitting.
2 Gun Trigger Plug
Insert plug into receptacle labeled
"SPOOL GUN", and
threaded collar.
3 Negative (−) Output Terminal
4 Positive (+) Output Terminal
Close door.
1 Polarity Changeover Label
Information
Always read and follow manufac-
ture's recommended polarity.
1
3/4, 11/16 in
Ref. 190 821-A
tighten
802 998-B