Replacing Gun Contact Tip | Hobart Welding Products 125 specs

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7-5. Replacing Gun Contact Tip

Tools Needed:

! Turn Off power before replacing contact tip.

1 Nozzle Remove nozzle.

2 Contact Tip

3 Tip Adapter

Cut off welding wire at contact tip. Remove contact tip from tip adapter, and install new contact tip. Reinstall

nozzle. 3

Ref. 804 241-A

OM-947 Page 24

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Image 28

Hobart Welding Products 125 manual Replacing Gun Contact Tip, Turn Off power before replacing contact tip

Contents

Description ProcessesFile Flux Cored Fcaw From Hobart to You Protect Your Investment Table of Contents 10-1 10-2 Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can burn Fumes and Gases can be hazardous ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal or Dirt can injure eyes Welding Wire can injure Fire or Explosion hazardFalling Equipment can injure Moving Parts can injure Principal Safety Standards California Proposition 65 WarningsEMF Information About Implanted Medical Devices UNE Décharge Électrique peut entraîner la mort Symboles utilisésIndique des instructions spécifiques LES Fumées ET LES GAZ peuvent être dangereux LES Pièces Chaudes peuvent provoquer des brûluresLE Soudage peut provoquer un incendie ou une explosion LE Bruit peut endommager l’ouïe LES Bouteilles peuvent exploser si elles sont endommagéesRisque D’INCENDIE OU LA Chute DE L’ÉQUIPEMENT peut provoquer des blessures Proposition californienne 65 Avertissements Les Pièces Mobiles peuvent causer des blessuresLES Fils DE Soudage peuvent provoquer des blessures LE Soudage À L’ARC risque de provoquer des interférences Informations relatives aux CEM Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-947 − Specifications Symbols And DefinitionsSpecifications − Definitions Warranty Duty Cycle And OverheatingVolt-Ampere Curves Can damage unit or gun and void Installing Work Clamp − InstallationSlide insulating grips over handles Tools Needed OM-947 Process/Polarity Table Changing Polarity Installing Gas Supply Tools Needed 11/16, 1-1/8 Shielding Gas Only applies to units equipped with Installing Wire Spool And Adjusting Hub TensionOptional hub kit Selecting a Location And Connecting 115 Volt Input Power Make this installationSerial Number And Rating Label Location Section Installing Contact Tip And Nozzle Turn off welding power source Threading Welding Wire Hold wire tightly to keep it from unraveling − Operation ControlsOperating The Gun Load Weld Parameter Chart − Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor Protection Changing Drive Roll Or Wire Inlet Guide Retaining Knob Opening Turn Off power before replacing contact tip Replacing Gun Contact Tip Cleaning Gun Liner Hold wire tightly to keep itThread wire according to From unraveling. Secure Remove black sleeving from end of replacement liner Replacing Gun LinerTools Needed Head Tube Mm / 10 mm Tube. Separate gun handle halves 10 mm Troubleshooting Table Secure power cord plug in receptacle see SectionPower source see Section Trouble Remedy − Electrical Diagram Circuit Diagram Typical Fcaw Process Connections − FCAW/GMAW Welding GuidelinesTypical Gmaw MIG Process Connections Typical Control Settings Wire Size Amperage RangeAmperage Select Voltage Holding And Positioning Welding Gun End View of Work Angle Short Normal Long Conditions That Affect Weld Bead ShapeSlow Normal Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterPossible Causes Corrective Actions Troubleshooting − Lack Of Penetration Troubleshooting − Excessive PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Burn-Through Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Base metal to move Troubleshooting Guide For Semiautomatic Welding Equipment Common Gmaw MIG Shielding GasesApplication Fillet Gas nozzle plugged Clean or replace gas nozzle Open gas valve at cylinder and adjust flow rateGas hose in gun and cable assembly Loose or broken wires to gas solenoid − ACCESSORIES/CONSUMABLES AccessoriesConsumables Pkg Material Thickness Reference Chart Work like a Pro Support ServiceAssistance Contact your Distributor for Hobart Welding Products