Hobart Welding Products OM-949 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 specification sheets.

To locate your nearest distributor or service agency call 1-877-Hobart1 or visit our website at www.HobartWelders.com.

For Technical Help call 1-800-332-3281.

Hob_Thank 4/05

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

Protect Your Investment!

Register your product at:

HobartWelders.com

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Contents Processes DescriptionFrom 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 killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesSpecifications Duty Cycle ChartsVolt Model Volt-Ampere CurvesSelecting a Location AmpsInstalling Work Cable onto Work Clamp Installing Electrode Holder And Work ClampInstalling Electrode Cable and Barrel onto Electrode Holder Removing Barrel From Elec- trode Holder350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Weld Output Cables150 ft 200 ft 250 ft Put terminalsElectrical Service Guide Connecting Input PowerControls Months Routine MaintenanceLubricating Shunt Block And Anti-Noise Adjustment Reinstalling Amperage Adjustment Indicator Wrapper Remove wrapper from unit Crank Handle Shunt ShaftTroubleshooting Trouble Remedy− Electrical Diagrams − Welding Methods & Troubleshooting Welding Methods Shielded Metal Arc Welding Smaw ProcedureElectrode And Amperage Selection Chart 6013 7014Striking An Arc Positioning The Electrode HolderElectrode Angle Weld Bead CharacteristicsConditions That Affect Weld Bead Shape Arc LengthElectrode Movement During Welding Butt JointsTee Joints Welding TroubleshootingLap Joints PorosityLack Of Penetration Excessive SpatterIncomplete Fusion Waviness Of Bead Excessive PenetrationBurn-Through DistortionStart Your Professional Welding Career Now − Parts List Dia Part Description Quantity Page Assistance ServiceSupport Contact your Distributor for Hobart Welding Products