Electrical Diagram | Hobart Welding Products OM-944 196 639G, 175

SECTION 7 − ELECTRICAL DIAGRAM

194 324-C

Figure 7-1. Circuit Diagram For 115 VAC Model

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OM-944 Page 29

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Hobart Welding Products OM-944 196 639G, 175 manual Electrical Diagram, Circuit Diagram For 115 VAC Model

Contents

OM-944 ProcessesDescription From Hobart to You Table of Contents Options and Accessories Warranty Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can kill Welding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or kill California Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers − Consignes DE Sécurité − À Lire Avant Utilisation Identifie un message de sécurité particulier LES Particules Projetées peu- vent blesser les yeux LE Soudage peut causer un incen- die ou une explosionLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Bruit peut affecter l’ouïe LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut Faire LES Pièces Mobiles peuvent cau- ser des blessures Principales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques − Specifications SpecificationsVAC Model Output Duty Cycle And OverheatingDuty Cycle % Output Amperes Load Amps Volt-Ampere Curves Installing Welding Gun Installing Work Clamp − Installation Changing Polarity Process/Polarity Table Installing Gas Supply Rating Label = GND/PE Do not move or operate unit where it could tip Installing Wire Spool And Adjusting Hub Tension Electrical Service Guide For 230 VAC Model Hold wire tightly to keep it from unraveling Threading Welding Wire Controls − Operation Welding Guide Weld Parameter Chart For 115 VAC Model For 115 Volt Wire Welding Package Weld Parameter Chart For 230 VAC Model For 230 Volt Wire Welding Package Routine Maintenance − Maintenance &TROUBLESHOOTINGDisconnect power before maintaining Overload Protection Drive Motor Protection Changing Drive Roll Or Wire Inlet Guide Turn Off power before replacing contact tipReplacing Gun Contact Tip Cleaning Or Replacing Gun Liner Disconnect gun from unitTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting Table Circuit Diagram For 115 VAC Model − Electrical Diagram Circuit Diagram For 230 VAC Model Typical MIG Process Connections − MIG Welding Gmaw Guidelines Wire Size Amperage Range Typical MIG Process Control SettingsThickness to Amperage a Select Voltage Holding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective Actions Troubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of Bead Troubleshooting Guide For Semiautomatic Welding Equipment Common MIG Shielding GasesApplication Welding arc not stable Wire slipping in drive rolls Return To Table Of Contents Main Assembly − Parts List Dia Part H-10 Gun Optional Drive Rolls Options195 Page Support Service Hobart Welding Products Contact your Distributor for