Operating The Gun | Hobart 125 EZ, H-9B instruction

5-2. Operating The Gun

1 Trigger Switch

When pressed, energized wire feeds.

1

Ref. 804 240-A

OM-923 Page 17

Image 21

Hobart 125 EZ, H-9B manual Operating The Gun

Contents

Processes OM-923Description File Flux Cored Fcaw From Hobart to You Table of Contents 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 UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures graves LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessures En ce qui concerne les stimulateurs cardiaques Principales normes de sécurité − Specifications SpecificationsDuty Cycle And Overheating Volt-Ampere Curves Installing Work Clamp − InstallationProcess/Polarity Table Polarity Installing 4 in 102 mm Wire Spool Installing Wire Spool And Adjusting Hub Tension Do not move or operate unit where it could tip Turn off welding power source Installing Contact Tip And Nozzle Input Power Threading Welding Wire Controls − Operation Operating The Gun Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor Protection Slide replacement wire guide into Changing Drive Roll Or Wire Inlet Guide Replacing Gun Contact Tip Cleaning Gun Liner Replacing Gun Liner End of wire at spool 13/16 in 21 mm Troubleshooting Table Trouble RemedyDoes not run Circuit Diagram − Electrical Diagram Typical Fcaw Process Connections − Wire Welding Guidelines Wire Size Amperage Range Typical Control SettingsThickness to Amperage a Amperage 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 BeadTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feed Main Assembly − Parts List Dia Part Description Quantity Pkg 225 209 Wire Drive AssemblyPage Service SupportAssistance Hobart Welding Products Contact your Distributor for