Miller Electric XLT 185 Installation, Installing Welding Gun, Close door, Incorrect, Correct

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SECTION 5 − INSTALLATION

5-1. Installing Welding Gun

.Be sure that gun end is tight against drive assembly.

1Drive Assembly

2Gun Securing Thumbscrew

3Gun End

Loosen thumbscrew. Insert end through opening until it bottoms against drive assembly. Tighten thumbscrew.

Welding gun must be inserted completely to prevent leakage of shielding gas.

4 Gun Trigger Leads

Insert leads, one at a time, through gun opening on front panel. Connect female friction terminals to matching male terminals in unit. Polarity is not important.

Close door.

	Exposed O-rings
Incorrect	will cause shielding	Correct
Incorrect	gas leakage.	Correct
Gun Not Seated		Gun Fully Seated

804 621-A

OM-230 832 Page 11

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Contents Flux Cored Arc Fcaw Arc Welding Power Source and Wire FeederOM-230 832A 2007−02 Processes DescriptionPage Table of Contents − Parts List − MIG Welding Gmaw GuidelinesTypical MIG Process Connections Electric 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 Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier LE Bruit peut endommager l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone− Definitions − SpecificationsSymbols And Definitions SpecificationsOutput Duty Cycle And OverheatingVolt-Ampere Curves AmperesIncorrect − InstallationInstalling Welding Gun Close doorInstalling Work Clamp Changing Polarity Process/Polarity TableInstalling Gas Supply After flow is set, close feedhead pressure assemblyTools Needed 1-1/8 First, and never to a line ter- minal Selecting a Location And Connecting Input PowerElectrical Service Guide Installing Wire Spool And Adjusting Hub TensionTools Needed Installing Contact Tip And Nozzle Threading Welding Wire Wire Speed Control − OperationControls CFH Weld Parameter Chart For 230 VAC Model227010 Overload Protection Drive Motor Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Disconnect power before maintaining030/.035 Groove Stamped 023/.025 Groove Stamped .030/.035 Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip Replacing Gun Contact TipTo Reassemble Gun Cleaning Or Replacing Gun LinerInstall gas diffuser, adapter, contact tip, and nozzle Disconnect gun from unitReplacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableOM-230 832 Circuit Diagram − Electrical Diagram228 180-A Gas Regulator Flowmeter Wire Feeder Power Source Shielding− MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsSelect Voltage Typical MIG Process Control SettingsWire Size Amperage Range Thickness to Amperage aHolding 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 Weld bead Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Common MIG Shielding GasesTroubleshooting Guide For Semiautomatic Welding Equipment OM-230 832 Main Assembly − Parts ListDia Part 228 195 H-10 GunOptions Optional Drive RollsPage Work like a Pro Warranty Owner’s Record