Miller Electric 273, 271 Installing Gas Supply, Installing Wire Spool and Adjusting Hub Tension

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3-4. Installing Gas Supply

1

Argon Gas

OR

2 3

CO2 Gas

Chain gas cylinder to running gear, wall, or other stationary support so cylinder cannot fall and break off valve.

1Regulator/Flow Gauge Install so face is vertical.

2Gas Hose Connection

3Flow Adjust

Typical flow rate is 0.9 liters per minute. Check wire manufactur- er’s recommended flow rate. This flow gauge can be adjusted be- tween 2.36 and 11.8 liters per min- ute.

Ref. ST-148 265-B / Ref. ST-149 827-B / Ref. ST-158 697-A

3-5. Installing Wire Spool and Adjusting Hub Tension

When a slight force is needed to turn spool, tension is set.

Tools Needed:

Nov. 16, 2005

OM-223 194 Page 10

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Contents Description OM-223 194E 2006−09Processes From Miller to You Table of Contents DecstatMilan6/05 DirectivesStandards Electric Shock can kill Symbol UsageArc Welding Hazards Fumes and Gases can be hazardousFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF Information− Definitions Electric shock can killDo not move or operate unit Where it could tipFalling unit can cause injury Cylinders can expolde ifCan kill Electrical shock from wiringWear approved safety Working on this machine− Installation SpecificationsModel Duty Cycle And OverheatingVolt-Ampere Curves Installing Gas Supply Installing Wire Spool and Adjusting Hub Tension271 273 293 333 383 Positoning Jumper Links 230/400V 3-Phase ModelsElectrical Service Guide 230 400L2 L3 Installing Drive Rolls and Wire Guide Aligning Drive Rolls and Wire GuideThreading Welding Wire and Adjusting Pressure Roll Tension Using Gun/Cable Holder Setting Gun Polarity for Wire Type OptionalControls for Migmatic 293/333 − OperationControls for Migmatic 271/273 Controls for Migmatic Run-In, Burnback Optional and Spot Weld Timer ControlsSpot Weld Timer Run-In ControlCircuit Breaker CB1 − Maintenance &TROUBLESHOOTINGRoutine Maintenance Unit OverloadReplace Z1 if necessary TroubleshootingCheck voltage switchs. Replace if necessary Nections. Check secondary voltages. Replace T1 if necessaryOM-223 194 − Electrical Diagrams Circuit Diagram for MigmaticCircuit Diagram for Migmatic 273 400 VAC Circuit Diagram for Migmatic 293 400 VAC Circuit Diagram for Migmatic 333 400 VAC Circuit Diagram for Migmatic 383 400 VAC − Parts List Wrapper Assembly, All ModelsPart Description Quantity Main Assembly for Migmatic Dia Part Description Quantity Mkgs Main Assembly for Migmatic Dia Part Description Main Assembly for Migmatic PL2 Main Assembly for Migmatic PL1 Main Assembly for Migmatic TP1 See Table Drive Roll & Wire Guide Kits Wire Drive and Gears 2 rollWire Drive and Gears 4 roll 1.0 mm Drive Roll And Wire Guide Kits 2 Roll ModelsDrive Roll And Wire Guide Kits 4 Roll Models 1.2 mmPage Page Effective January 1 Transportation Department For assistance in filing or settling claims, contactYour distributor and/or equipment manufacturer’s