Hobart OM-1581 manual Removing Contact Tip Adapter In Water-Cooled Models, Replacing Hub Assembly

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5-8. Removing Contact Tip Adapter In Water-Cooled Models

WARNING

WATER IN GUN PARTS can cause ELECTRIC SHOCK and can lower weld quality.

•Turn Off welding power source and water supply before working on gun. Stop engine on welding generators.

•Always point gun downward when removing water-cooled barrel to keep water out of gun parts.

•Wipe gun dry before putting it back together.

3

2

1

Turn Off weld control and welding power source.

1Nozzle

2Nozzle Adapter Remove as shown.

3Contact Tip Adapter

Use supplied 3/32 in allen wrench to remove adapter.

Coat new adapter with threadlock- ing compound (such as Loctite No. 242), and install.

150 431

5-9. Replacing Hub Assembly

1

2

3

4

Tools Needed:

7/16 in

Turn Off wire feeder and welding power source. Remove gun top cover and open pressure roll assembly as shown in Section 5-4.

Retract wire onto spool and remove spool. Take hub apart as shown.

1 Metal Brake Washer

2 Flat Washer

3 Brake Washer

4 Hub

5 Keyed Washer

6 Spring

7 Cap Screw

8 Retaining Ring

Replace broken or worn parts and slide parts onto shaft as shown.

Adjust hub tension (see Section 5-10). Thread welding wire (see Section 3-15). Close and latch door.

Close gun pressure roll assembly and reinstall gun cover.

5

6

2

7

8

151 778-B / Ref. 143 223-A

OM-1581 Page 34

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Contents Description OM-1581Processes From Hobart to You Table of Contents Page Electric Shock can kill Symbol UsageArc Welding Hazards Fumes and Gases can be hazardousFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersUN Choc É Lectrique peut tuer Signification des symbolesConsignes DE Securite Lire Avant Utilisation LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux ’EMPLOI Excessif peut Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sé curité Information sur les champs é lectromagné tiquesGun Specifications SpecificationsWire Feeder Specifications Duty Cycle And OverheatingInstallation Constant Voltage CV Weld- ing Power Source Plug Removing Top Cover Of Gun Air-Cooled Gun Connections Water-Cooled Gun Connections Air-Cooled Feeder Connections Water-Cooled Feeder Connections Rear Of Water Fitting Left- Hand ThreadsAdjusting Contact Tip Position Voltage Sensing Lead Connections12 VAC/Contactor Control Plug Information ContactorPLG5 Installing Wire Spool Threading Welding Wire Through Feeder Threading Welding Wire Through Gun Coolant GuidelinesAdjusting Wire Feed Starting Speed Front Panel Controls Of Feeder Air-Cooled Model Shown Safety EquipmentOperation Work And Voltage Sensing Cable ClampsRun-In Speed Control Jog SwitchVoltage/Wire Speed Switch And Meter Optional Remote Voltage Control Optional Power Switch Spot Controls OptionalFlowmeter Optional Internal ControlsCoolant Supply For Water-Cooled Models Only Gun ControlsShielding Gas Sequence Of Gas Metal Arc Welding Gmaw Continuous Or SpotMonths Maintenance & TroubleshootingRoutine Maintenance Changing Or Cleaning Gun Drive Roll Changing Feeder Drive Roll And Wire Inlet Guide Replacing Or Cleaning Gun Drive Roll Bearing Replacing Or Cleaning Feeder Drive Roll BearingChanging Gun Contact Tip And Liner Removing Contact Tip Adapter In Air-Cooled ModelsReplacing Hub Assembly Removing Contact Tip Adapter In Water-Cooled ModelsOverload Protection Adjusting Hub TensionWater Flow Switch Optional For Water-Cooled Models Troubleshooting Wire Feeder TroubleGun Trouble Electrical Diagrams Circuit Diagram For Wire FeederCircuit Diagram For Gun Parts List Main AssemblyDia Part CB1 Motor & Wire Drive -1 Item Panel, Front w/Components Water-Cooled Model Illustrated Panel, Front w/Components -1 Item Exploded View Of Gun 133 203 Barrel Assembly -4 Item Optional Call HOBART1 for your local Hobart distributor Contact your Distributor for Hobart Welding Products