Hobart OM-303 manual From Hobart to You

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From Hobart to You

Thank you and congratulations on choosing Hobart. 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.

This Owner’s Manual is designed to help you get the most out of your Hobart 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 Hobart 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

Hobart is registered to the you may need to fix the problem. Warranty and

ISO 9001 Quality System service information for your particular model

Standard.

are also provided.

Hobart Welders manufactures a full line of welders and welding related equipment.

For information on other quality Hobart products, contact your local Hobart distributor to receive the latest full line catalog or individual catalog sheets.

To locate your nearest distributor or service agency call 1-877-Hobart1.

Working as hard as you do – every power source from Hobart is backed by the best warranty in the business.

Hobart offers a Technical Manual which provides more detailed service and parts information for your unit. To obtain a Technical Manual, contact your local distributor. Your distributor can also supply you with Welding Process Manuals such as SMAW, GTAW, GMAW, and GMAW-P.

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Contents Processes OM-303155795NDescription From Hobart to You Table of Contents Page 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 killPrincipal Safety Standards EMF Information About PacemakersUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux ’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques General Precautionary Label DefinitionsIncluded with Your Unit Symbols And DefinitionsIntroduction Volt-Ampere Curves SpecificationsDuty Cycle Chart Hertz ModelsSelecting a Location InstallationTurn Off power before mak- ing connections Typical Stick ConnectionsTypical TIG Connections Electrical Service Guide Connecting Input PowerOperation ControlsGtaw Welding Amperage Range Example of Front Panel Amperage ControlExample of Remote Amperage Control AC Low AC HighProcess and Material Thickness Guide Label Troubleshooting Maintenance and TroubleshootingRoutine Maintenance Electrical Diagrams Circuit DiagramWelding Processes Requiring High Frequency Incorrect InstallationHigh Frequency Weld ZoneMetal Building Requirements Correct InstallationMetal Building Parts List Main AssemblyDia Part Description Mkgs Quantity Figure -1. Main Assembly Page Page Service SupportContact your Distributor for Hobart Welding Products