Miller Electric OM-230 manual From Miller to You

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Miller is the first welding equipment manufacturer in the U.S.A. to be registered to the ISO 9001:2000 Quality System Standard.

From Miller to You

Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way.

That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy.

Today, the people that build and sell Miller products continue the tradition. They’re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your Miller products. Please take time to read the Safety precautions. They will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick and easy. With Miller you can count on years of reliable service with proper maintenance. And if for some reason the unit needs repair, there’s a Troubleshooting section that will help you figure out what the problem is. The parts list will then help you to decide the exact part you may need to fix the problem. Warranty and service information for your particular model are also provided.

Miller Electric manufactures a full line

of welders and welding related equipment. For information on other quality Miller

products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets. To locate your nearest

distributor or service agency call 1-800-4-A-Miller, or visit us at www.MillerWelds.com on the web.

Mil_Thank 4/05

Working as hard as you do

−every power source from Miller is backed by the most hassle-free warranty in the business.

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Contents Description OM-230 693CProcesses File MIG GmawFrom Miller to You Table of Contents Typical MIG Process Connections − Parts List− MIG Welding Gmaw Guidelines Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Unit can cause injury Welding Wire can cause injuryFire or Explosion hazard Moving Parts can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortLE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux Risque D’INCENDIE OU D’EXPLO LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’APPAREIL peut blesserLE Soudage À L’ARC risque de provoquer des interférences Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures En ce qui concerne les implants médicaux Principales normes de sécuritéInformation EMF OM-230 693 Symbols And Definitions SpecificationsOverheating Welding Power Source Duty Cycle And OverheatingVolt-Ampere Curves Connecting To Weld Output Terminals Installing Work Cable And ClampConnecting Spoolmatic 15A Or 30A Gun 32 in 2.4 mm Connecting XR Aluma-Pro, XR Edge, XR-A Gun, Or XR-A PythonGun End Gun Liner Wire Outlet Guide Polarity Changeover Label Information Setting Gun Polarity For Wire TypeInstalling Gas Supply 11/16Installing Wire Spool And Adjusting Hub Tension Positioning Jumper Links200 230 460 575 Electrical Service GuideInput Voltage 127 206L2L1 230 VAC Selecting a Location And Connecting Input Power18 in 457 mm of space for airflow =GND/PE Earth Ground Scale Threading Welding WirePressure Remove gun nozzle and contact tipOM-230 693 Weld Parameters 226 650-B − Operation ControlsTrigger and pull the trigger again momentarily one second JOG ModeRun−in Wire Feed Speed Settings Power Up Status Voltmeter And Wire Feed Speed Meter OperationJog Mode Welding StatusTimers Set Up Push Motor Torque SUP Or Reset rES Unit Overload Routine MaintenanceChanging Drive Roll and Wire Inlet Guide Assembly open Aligning Drive Rolls and Wire GuideTurn Off power View is from top of drive rollsTroubleshooting Trouble Remedy OM-230 693 − Electrical Diagram 229 485-A − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsSelect Wire Size Recommendation Wire Speed Typical MIG Process Control SettingsWire Size Amperage Range Select VoltageHolding And Positioning Welding Gun Side View Of Gun AngleShort Normal Long Conditions That Affect Weld Bead ShapePush Perpendicular Drag Slow NormalGun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Weld bead Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Application Troubleshooting Guide For Semiautomatic Welding EquipmentCommon MIG Shielding Gases Welding power source Welding arc not stable Wire slipping in drive rollsReadjust welding parameters Drive rolls if necessaryGrooved 056 Drive Roll And Wire Guide Kits087 0.9 mm 204Support ServiceYour distributor also gives For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s