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OM-1330 Page 13
4-7. Installing Welding Gun
1 Drive Assembly
2 Gun Securing Knob
3 Gun End
Loosen securing knob. Insert gun
end through opening until it bottoms
against drive assembly (make sure
gun end does not touch drive rolls).
Tighten knob.
4 Gun Trigger Plug
Insert plug into receptacle, and
tighten threaded collar.
Close door.
803 860-B
1
2
3
4
4-8. Setting Gun Polarity For Wire Type
1 Polarity Changeover Label
Information
Always read and follow manufac-
ture’s recommended polarity.
1
3/4, 11/16 in
Ref. 190 821-A
Changing Polarity
D
D
Wire Drive
Assembly Lead
Work Clamp Lead
+
Positive Terminal
Shown as shipped − Electrode Positive (DCEP): For solid steel,
stainless steel, aluminum, or flux core with gas wires (GMAW).
-
Negative Terminal
Electrode Negative (DCEN): Reverse lead connections at
terminals from that shown above for gasless flux core wires
(FCAW). Drive assembly becomes negative.