Hobart Welding Products 210 manual Installing Contact Tip And Nozzle, Flux Nozzle

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5-9. Installing Contact Tip And Nozzle

	Y	Turn off welding power source.
	1	Nozzle
	Remove nozzle.
	2	Contact Tip
	3	Tip Adapter
	Thread welding wire through gun (see
3	Section 5-11).
2	Slide contact tip over wire and tighten
	tip into tip adapter.
1	Install nozzle.
1

Flux Nozzle

Use with flux cored wire only. Narrow design allows access in tight spaces and provides better visibility of puddle during welding.

Push nozzle over contact tip and adapter until it is seated onto adapter. Contact tip will be exposed approximately 7/16 in (11.3 mm) when installed properly.

MIG Nozzle

Use with solid or flux cored wire.

Push nozzle over contact tip and adapter until it is seated onto adapter. End of contact tip will be flush with end of nozzle when installed properly.

Tools Needed:

Ref. 802 399-A

OM-227 978 Page 16

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Contents OM-227 978A ProcessesDescription 2006−12From Hobart to You Table of Contents − Parts List 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 cardiaques− Specifications Symbols And DefinitionsSpecifications − DefinitionsDuty Cycle And Overheating Volt-Ampere CurvesAmperes OutputInstalling Work Clamp − InstallationInstalling Welding Gun Process/Polarity Table Changing PolarityInstalling Gas Supply First, and never to a line ter- minal Selecting a Location And Connecting Input PowerDo not move or operate unit where it could tip Electrical Service Guide Installing Wire Spool And Adjusting Hub TensionInstalling Contact Tip And Nozzle Flux NozzleConnecting Optional Spool Gun Appropriate settingThreading Welding Wire Hold wire tightly to keep it from unraveling− Operation ControlsWeld Parameter Chart For 230 VAC Model 227 949-A − Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor ProtectionReplacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Does not run Troubleshooting TableTrouble Remedy OM-227 978 − Electrical Diagram Circuit Diagram227 951-A − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Size Amperage RangeThickness to Amperage a AmperageHolding And Positioning Welding Gun Cored wire Conditions That Affect Weld Bead ShapeGun 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 − DistortionCommon MIG Shielding Gases ApplicationTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feedOM-227 978 − Parts List Main AssemblyDia Part Description Quantity Dia Part Description Quantity Mkgs H-14 Gun 231Consumables Optional Drive RollsOptions Page Work like a Pro Assistance ServiceSupport Contact your Distributor for Hobart Welding Products

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