Miller Electric OM-1313 Cleaning Or Replacing Gun Liner, Disconnect gun first, To Reassemble Gun

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4-4. Cleaning Or Replacing Gun Liner

Tools Needed:

Y Disconnect gun first.

3/8 in

Head Tube

Remove nozzle, contact tip, and adapter.

3/8 in

Lay gun cable out straight before installing new liner.

Blow out gun casing.

Remove liner.

To Reassemble Gun:

Insert new liner.

Install and tighten wire outlet guide.

Cut liner off 3/4 in (20 mm) (3/8 in [9.5 mm] for aluminum) from head tube.

Install adapter, contact tip, and nozzle.

Ref. ST-800 797-C

OM-1313 Page 17

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Contents Visit our website at Arc Welding Power Source Wire FeederSeptember MIG Gmaw Welding Flux Cored Fcaw WeldingFrom Miller to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards OM-1313ARC Rays can burn eyes and skin Fire or Explosion hazard Principal Safety StandardsAbout Pacemakers EMF InformationInstallation SpecificationsVolt-Ampere Curves Exceeding duty cycle can damage unit and void warranty Welding Power Source Duty Cycle And OverheatingWelding Gun Duty Cycle And Overheating OverheatingInstalling Gas Supply Installing Work ClampSetting Gun Polarity Installing Welding GunPolarity Changeover Label Tools Needed 11/16Turn Off unit, and disconnect input power Installing Wire Spool And Adjusting Hub TensionReinstall wrapper Tools Needed 7/16 Changing Input VoltageSelecting a Location And Connecting Input Power Electrical Service GuideInput Voltage Min Grounding Conductor Size In AWG/KcmilThreading Welding Wire OM-1313 Operation Front Panel ControlsControls For Standard Units Higher e.g Volts AC Lower e.g Volts AC Weld Parameter ChartOM-1313 Maintenance & Troubleshooting Routine MaintenanceMonths Disconnect gun first Cleaning Or Replacing Gun LinerHead Tube Remove nozzle, contact tip, and adapter Blow out gun casing Remove linerRemove handle locking nut Slide handle Replacing Switch And/Or Head TubeTroubleshooting Replacing Gun Contact TipSee Section Circuit Diagram Electrical DiagramMIG Welding Gmaw Guidelines Wire Feeder Power Source Gun Work Clamp WorkpieceTypical MIG Process Connections Shielding Gas Regulator/ FlowmeterWire Recommendation Wire Speed Typical MIG Process Control SettingsSelect Wire Size Select VoltageHolding And Positioning Welding Gun Push Conditions That Affect Weld Bead ShapePerpendicular Drag Short Normal LongPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting Porosity Troubleshooting Excessive SpatterTroubleshooting Excessive Penetration Possible Causes Corrective ActionsTroubleshooting Lack Of Penetration Troubleshooting Incomplete FusionTroubleshooting Burn-Through Troubleshooting Waviness Of Bead Troubleshooting DistortionWeld bead Troubleshooting Guide For Semiautomatic Welding Equipment Common MIG Shielding GasesApplication Readjust welding parameters Welding arc not stable Wire slipping in drive rollsWelding power source Drive rolls if necessaryOM-1313 Main Assembly Parts ListDia Part Mkgs Description Quantity Center Baffle w/Components Baffle, Center w/Components -1 Item M-15 Gun -1 Item Items IncludesPage Service Your distributor also givesSupport Owner’s Record