Miller Electric OM-229 038D Using Gun/Cable Holder, Setting Gun Polarity for Wire Type Optional

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3-11. Using Gun/Cable Holder

1 Consumable Storage

Compartment

Press latch down to release and open door. Provides storage space for gas nozzles, contact tips, gas diffusers.

1

3-12. Setting Gun Polarity for Wire Type (Optional)

		1	Electrode Positive (DCEP)
		For solid steel, stainless steel, alu-
		minum, or flux core with gas, wires
		(GMAW).
		2	Electrode Negative (DCEN)
1		For	gasless flux core wires
1		(FCAW), wire drive assembly be-

comes negative.

2

221−253−4 / 221−253−5

OM-229 038 Page 15

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Contents Processes OM-229 038D 2007−04Description From Miller to You Table of Contents Standards DirectivesElectric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers Electric shock can kill − DefinitionsFalling unit can cause injury Weee Label Specifications − InstallationDuty Cycle And Overheating Volt-Ampere Curves Installing Gas SupplyModel Positoning Jumper Links 230/400V 3-Phase Models Installing Wire Spool and Adjusting Hub TensionPhase Electrical Service Guide Tools Needed = GND/PE Earth Ground Drive Roll Installing Drive Rolls and Wire GuideScale Threading Welding Wire and Adjusting Pressure Roll TensionSetting Gun Polarity for Wire Type Optional Using Gun/Cable Holder− Operation Burnback and Spot Weld Timer ControlsControls for Migmatic 221/253 Unit Overload − Maintenance &TROUBLESHOOTINGRoutine Maintenance Circuit Breaker CB1Trouble Remedy TroubleshootingOM-229 038 Circuit Diagram for Migmatic − Electrical DiagramsCircuit Diagram for Migmatic 253 400 VAC Wrapper Assembly, All Models − Parts ListPart Description Quantity Main Assembly for Migmatic Dia Part Mkgs Description Quantity Main Assembly for Migmatic Dia Part Quantity Mkgs Description 230V 400V Wire Diameter Drive Roll Wire Guide Drive Roll And Wire Guide Kits 2 Roll ModelsFraction Page Page Effective January 1 ITW Welding Products Italy S.r.l. Via Privata Iseo, 6/E Owner’s Record