Hobart Welding Products 250A manual From Hobart to You

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Hobart is registered to the ISO 9001:2000 Quality System Standard.

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 you may need to fix the problem. Warranty and service information for your particular model 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.

Hob_Thank 7/03

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

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Contents Processes DescriptionFrom Hobart to You Table of Contents Page Plasma Arc Cutting Hazards Symbol UsageMarks a special safety message Cutting can cause fire or explosionARC Rays can burn eyes and skin Exploding Parts can injureFlying Sparks can cause injury Noise can damage hearingCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information UNE Décharge Électrique peut entraîner la mort Signification des symbolesLE Coupage présente un risque de feu ou d’explosion Identifie un message de sécurité particulierLES Fumées ET LES GAZ peuvent être dangereux Risque de blessure en casLE Bruit peut endommager l’ouïe LE Plasma D’ARC peut entraîner des blessuresDES Organes Mobiles peuvent provoquer des blessures LES Bouteilles peuvent exploser si elles sont endommagéesDES Pieces Chaudes peuvent pro- voquer des brûlures graves DES Particules Volantes peuvent blesser les yeuxConsignes relatives aux stimulateurs cardiaques Principales normes de sécuritéInformation sur les champs électromagnétiques I1eff − DefinitionsI1max Specifications For Torch − InstallationSpecifications For Power Source Duty Cycle And OverheatingSelecting a Location Torch Dimensions And WeightDimensions And Weight Movement Location And AirflowConnecting Work Clamp Connecting Input PowerControls Trigger Safety Lock− Operation 197 196 Pilot arc starts immediately when trigger is pressedSequence Of Operation − Maintenance & Troubleshooting MonthsTrouble Light And Checking Shield Cup Shutdown System Checking Torch Shield Cup Shutdown SystemWork Cable Connections Torch And Work Cable ConnectionsTorch Connections Turn Off power source before checking torch parts Checking/Replacing Retaining Cup, Tip, And ElectrodeTroubleshooting Power Source Troubleshooting Torch − Electrical Diagram Circuit Diagram− Parts List Main AssemblyDia Part Description Quantity Mkgs Cup 196928 RingRing 196935 196929 197567 196926 196925 196927 Page Page Service SupportContact your Distributor for Hobart Welding Products

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