Miller Electric XLT 185 warranty Installing Gas Supply, Tools Needed 1-1/8

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5-5. Installing Gas Supply

1

. DO NOT use Argon/Mixed gas regulator/flowmeter

with CO2 shielding gas. See Parts List for optional CO2 gas regulator/flowmeter.

4

2

7

3

5

Argon Gas Or

Mixed Gas

6

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

1Cap

2Cylinder Valve

Remove cap, stand to side of valve, and open valve slightly. Gas flow blows dust and dirt from valve. Close valve.

3Cylinder

4Regulator/Flowmeter

Install so face is vertical.

5Regulator/Flowmeter Gas Hose Connection

6Welding Power Source Gas Hose Connection

Connect supplied gas hose between regulator/flowmeter gas hose connection, and fitting on rear of welding power source.

7 Flow Adjust

Flow rate should be set when gas is flowing through welding power source and welding gun. Open feedhead pressure assembly so that wire will not feed. Press gun trigger to start gas flow.

Typical flow rate is 20 cfh (cubic feet per hour). Check wire manufacturer’s recommended flow rate.

After flow is set, close feedhead pressure assembly.

Feedhead Pressure	Feedhead Pressure
Assembly Open	Assembly Closed

Tools Needed:

5/8, 1-1/8 in

Ref. 804 654-A / 802 441 / Ref. 804 623-A

OM-230 832 Page 14

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Contents Description Arc Welding Power Source and Wire FeederOM-230 832A 2007−02 Processes Flux Cored Arc FcawPage Table of Contents − Parts List − MIG Welding Gmaw GuidelinesTypical MIG Process Connections Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying 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 InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut endommager l’ouïe’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresBoulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone En ce qui concerne les stimulateurs cardiaquesSpecifications − SpecificationsSymbols And Definitions − DefinitionsAmperes Duty Cycle And OverheatingVolt-Ampere Curves OutputClose door − InstallationInstalling Welding Gun IncorrectInstalling Work Clamp Process/Polarity Table Changing PolarityInstalling Gas Supply After flow is set, close feedhead pressure assemblyTools Needed 1-1/8 Selecting a Location And Connecting Input Power First, and never to a line ter- minalElectrical Service Guide Installing Wire Spool And Adjusting Hub TensionTools Needed Installing Contact Tip And Nozzle Threading Welding Wire Wire Speed Control − OperationControls Weld Parameter Chart For 230 VAC Model CFH227010 Disconnect power before maintaining − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload Protection Drive Motor ProtectionReplacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip 030/.035 Groove Stamped 023/.025 Groove Stamped .030/.035Disconnect gun from unit Cleaning Or Replacing Gun LinerInstall gas diffuser, adapter, contact tip, and nozzle To Reassemble GunReplacing Switch And/Or Head Tube Troubleshooting Table Trouble RemedyOM-230 832 − Electrical Diagram Circuit Diagram228 180-A Typical MIG Process Connections Regulator Flowmeter Wire Feeder Power Source Shielding− MIG Welding Gmaw Guidelines GasThickness to Amperage a Typical MIG Process Control SettingsWire Size Amperage Range Select VoltageHolding And Positioning Welding Gun Perpendicular Drag Conditions That Affect Weld Bead ShapePush Short Normal LongPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Common MIG Shielding Gases Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Weld beadTroubleshooting Guide For Semiautomatic Welding Equipment OM-230 832 − Parts List Main AssemblyDia Part 228 H-10 Gun 195Optional Drive Rolls OptionsPage Work like a Pro Warranty Owner’s Record