Hobart Welding Products OM-947 212 149D Threading Welding Wire, mm Pull and hold wire cut off end

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4-8. Threading Welding Wire

1 Wire Spool

2 Welding Wire

3 Inlet Wire Guide

4 Pressure Adjustment Knob

5 Drive Roll

6 Gun Cable

Lay gun cable out straight.

4

Tools Needed:

 

 

 

6

1

2

3

5

Open pressure assembly.

Tighten

.Hold wire tightly to keep it from unraveling.

6 in (150 mm)

Pull and hold wire; cut off end.

.Loosen knob completely, then rotate

pressure adjustment knob in a clockwise direction until drive roll is tight against the welding wire.

Adjust drive roll pressure just tightly enough to prevent wire from slipping against drive roll during operation.

4 in (102 mm)

Push wire thru guides into gun liner;

continue to hold wire.

INPUT

POWER

Be sure that wire is positioned

in proper feed roll groove. Close and tighten pressure assembly, and let go of wire.

Press gun trigger until wire comes out of gun.

Remove gun nozzle and contact tip.

Turn power on.

.Tip adapter may also require removal to allow wire to feed out end of gun.

Tighten

 

 

 

WOOD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Be sure that contact tip matches wire diameter.

Feed wire to check drive roll pressure.

Reinstall tip adapter, if applicable, contact tip

Tighten knob enough to prevent slipping.

and nozzle.

Cut off wire. Close door.

 

 

 

Ref. 803 444-A / Ref. 205 837

OM-947 Page 16

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Contents File Flux Cored Fcaw ProcessesDescription From 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 − Installation Installing Work ClampVolt-Ampere Curves VoltageProcess/Polarity Table Changing PolarityShielding Gas Installing Gas SupplyTools Needed 11/16, 1-1/8 Installing Wire Spool And Adjusting Hub Tension Tools NeededDo not move or operate unit where it could tip Installing Contact Tip And Nozzle Turn off welding power sourceThreading Welding Wire 150 mm Pull and hold wire cut off endBe sure that wire is positioned Reinstall tip adapter, if applicable, contact tip− Operation ControlsOperating The Gun LoadWeld Parameter Chart 210 − Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor ProtectionChanging Drive Roll Or Wire Inlet Guide Replacing Gun Contact Tip Cleaning Gun Liner Loosen liner setscrew Replacing Gun LinerHead Mm / 10 mm Tube 10 mm Does not run Troubleshooting TableTrouble Remedy − Electrical Diagram Circuit DiagramTypical MIG Process Connections − Wire Welding GuidelinesTypical Fcaw Process Connections Typical Control Settings Wire Size Amperage RangeThickness to Amperage a Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Short Normal LongShortNormalLong Slow Normal FastGun 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 AssemblyOptional 225 − See TablePkg PkgWeatherproof Nylon 195 Hub Kit For 8 in Wire Spool209 Page Page Page Assistance ServiceSupport Contact your Distributor for Hobart Welding Products