Hobart H-9B, 125 EZ manual Operation, Controls

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SECTION 5 − OPERATION

5-1. Controls

1 Material Thickness Selector Switch

Use switch to select the material thickness range. Do not switch under load.

. Switch must “click” into detent position for weld output.

2 Power Switch

1

2

Ref. 230 001-A

OM-923 Page 16

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Contents OM-923 ProcessesDescription File Flux Cored FcawFrom Hobart to You Table of Contents Warranty Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes 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 LE Soudage peut provoquer un Incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesDuty Cycle And Overheating − SpecificationsSpecifications Volt-Ampere Curves − Installation Installing Work ClampProcess/Polarity Table PolarityInstalling Wire Spool And Adjusting Hub Tension Installing 4 in 102 mm Wire Spool Do not move or operate unit where it could tip Installing Contact Tip And Nozzle Turn off welding power sourceThreading Welding Wire Input Power− Operation ControlsOperating The Gun − Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor ProtectionChanging Drive Roll Or Wire Inlet Guide Slide replacement wire guide intoReplacing Gun Contact Tip Cleaning Gun Liner End of wire at spool Replacing Gun Liner13/16 in 21 mm Does not run Troubleshooting TableTrouble Remedy − Electrical Diagram Circuit Diagram− Wire Welding Guidelines Typical Fcaw Process ConnectionsTypical Control Settings Wire Size Amperage RangeThickness to Amperage a AmperageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Troubleshooting − Excessive Spatter Troubleshooting − PorosityTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Waviness Of Bead Troubleshooting − DistortionTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feed− Parts List Main AssemblyDia Part Description Quantity 225 PkgWire Drive Assembly 209Page Assistance ServiceSupport Contact your Distributor for Hobart Welding Products