Miller Electric OM-1313 manual Holding And Positioning Welding Gun

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6-3. Holding And Positioning Welding Gun

NOTE

Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in (13 mm) past end of nozzle, and tip of wire is positioned correctly on seam.

1			1	Hold Gun and Control Gun
				Trigger
			2	Workpiece
		3	3	Work Clamp
	2	3	4	Electrode Extension (Stickout)
			4	Electrode Extension (Stickout)
				1/4 to 1/2 in (6 To 13 mm)
				1/4 to 1/2 in (6 To 13 mm)
			5	Cradle Gun and Rest Hand on
				Workpiece

90°

0° -15°

90°

End View of Work AngleSide View of Gun Angle

GROOVE WELDS

45°0° -15°

45°

End View of Work Angle	Side View of Gun Angle
FILLET WELDS		S-0421-A

OM-1313 Page 23

Image 27

Contents MIG Gmaw Welding Flux Cored Fcaw Welding Arc Welding Power Source Wire FeederVisit our website at SeptemberFrom Miller to You Table of Contents Page OM-1313 Symbol UsageMarks a special safety message Arc Welding HazardsARC Rays can burn eyes and skin Fire or Explosion hazard Principal Safety StandardsAbout Pacemakers EMF InformationInstallation SpecificationsVolt-Ampere Curves Overheating Welding Power Source Duty Cycle And OverheatingExceeding duty cycle can damage unit and void warranty Welding Gun Duty Cycle And OverheatingInstalling Gas Supply Installing Work ClampTools Needed 11/16 Installing Welding GunSetting Gun Polarity Polarity Changeover LabelChanging Input Voltage Installing Wire Spool And Adjusting Hub TensionTurn Off unit, and disconnect input power Reinstall wrapper Tools Needed 7/16Min Grounding Conductor Size In AWG/Kcmil Electrical Service GuideSelecting a Location And Connecting Input Power Input VoltageThreading 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 Blow out gun casing Remove liner Cleaning Or Replacing Gun LinerDisconnect gun first Head Tube Remove nozzle, contact tip, and adapterRemove handle locking nut Slide handle Replacing Switch And/Or Head TubeTroubleshooting Replacing Gun Contact TipSee Section Circuit Diagram Electrical DiagramShielding Gas Regulator/ Flowmeter Wire Feeder Power Source Gun Work Clamp WorkpieceMIG Welding Gmaw Guidelines Typical MIG Process ConnectionsSelect Voltage Typical MIG Process Control SettingsWire Recommendation Wire Speed Select Wire SizeHolding And Positioning Welding Gun Short Normal Long Conditions That Affect Weld Bead ShapePush Perpendicular DragPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Possible Causes Corrective Actions Troubleshooting Excessive SpatterTroubleshooting Porosity Troubleshooting Excessive PenetrationTroubleshooting 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 Drive rolls if necessary Welding arc not stable Wire slipping in drive rollsReadjust welding parameters Welding power sourceOM-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