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Hobart OM-303 manual Electrical Diagrams, 1. Circuit Diagram

Models: OM-303

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SECTION 7 – ELECTRICAL DIAGRAMS

SB-154 141-C

Figure 7-1. Circuit Diagram

OM-303 Page 19

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Hobart OM-303 manual Electrical Diagrams, 1. Circuit Diagram

Contents

Processes TIGMATE OM-303155795N DescriptionFrom Hobart to You WARRANTY TABLE OF CONTENTSPage ELECTRIC SHOCK can kill 1-1. Symbol Usage1-2. Arc Welding Hazards SECTION 1 - SAFETY PRECAUTIONS - READ BEFORE USINGBUILDUP OF GAS can injure or kill ARC RAYS can burn eyes and skinWELDING can cause fire or explosion FLYING METAL can injure eyesFIRE OR EXPLOSION hazard 1-3. Additional Symbols For Installation, Operation, And Maintenance1-4. Principal Safety Standards WELDING WIRE can cause injuryAbout Pacemakers 1-5. EMF InformationUN CHOC É LECTRIQUE peut tuer 1-1. Signification des symbolesSECTION 1 - CONSIGNES DE SECURITE - LIRE AVANT UTILISATION 1-2. Dangers relatifs au soudage à l’arcLE BRUIT peut affecter l’ouïe LE SOUDAGE peut provoquer un incendie ou une explosionDES PARTICULES VOLANTES peuvent blesser les yeux DES PIÈ CES CHAUDES peuvent pro- voquer des brû lures gravesDES ORGANES MOBILES peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOSIONLA CHUTE DE L’APPAREIL peut blesser L’EMPLOI EXCESSIF peut SURCHAUFFER L’É QUIPEMENTConsignes relatives aux stimulateurs cardiaques 1-4. Principales normes de sé curité1-5. Information sur les champs é lectromagné tiques SECTION 2 - DEFINITIONS 2-1. General Precautionary LabelI1eff 2-2. Symbols And DefinitionsSECTION 3 - INTRODUCTION 3-1. Included with Your Unit60 Hertz Models Specifications3-3. Duty Cycle Chart 3-4. Volt-Ampere Curves4-2. Typical Stick Connections SECTION 4 - INSTALLATION4-1. Selecting a Location Open valve slightly so gas flow blows dirt from valve. Close valve 4-3. Typical TIG Connections4-5. Connecting Input Power 4-4. Electrical Service Guide5-1. Controls SECTION 5 - OPERATION5-3. Example of Remote Amperage Control 5-2. Example of Front Panel Amperage ControlWeld Output 5-4. Process and Material Thickness Guide LabelGuideline For Welding Process And Output For Material Material And6-2. Troubleshooting SECTION 6 - MAINTENANCE AND TROUBLESHOOTING6-1. Routine Maintenance Figure 7-1. Circuit Diagram SECTION 7 - ELECTRICAL DIAGRAMS8-1. Welding Processes Requiring High Frequency 8-2. Incorrect InstallationSECTION 8 - HIGH FREQUENCY 50 ft 8-3. Correct Installationnot available unless listed SECTION 9 - PARTS LISTFigure 9-1.Main Assembly Figure 9-1. Main Assembly Figure Figure 9-1. Main Assembly Continued Page Page Call 1-877-HOBART1 for your local Hobart distributor Warranty Questions?Effective January 1 Equipment with a serial number preface of “LB” or newerPlease complete and retain with your personal records Owner’s RecordResources Available To locate a Distributor, retail or service location