Hobart OM-1581 manual Changing Gun Contact Tip And Liner

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5-6. Changing Gun Contact Tip And Liner

2

1

3

4

Turn Off wire feeder and welding power source.

Remove top cover and open pres- sure roll assembly as shown in Section 5-4.

1 Contact Tip Wrench

Insert wrench into nozzle over contact tip.

2 Compression Nut

Loosen nut. Pull out contact tip.

3Contact Tip

4Nozzle

Pull wire out nozzle and liner should slide out. If necessary, tilt nozzle down to remove liner.

Close pressure roll assembly. Reinstall top cover.

Install new liner and contact tip over wire. Cut off wire at end of contact tip.

Tighten nut just until contact tip is secure. Overtightening nut will damage adapter.

Tools Needed:

150 437

5-7. Removing Contact Tip Adapter In Air-Cooled Models

8

7

6

5

4

3

2

1

Tools Needed:

5/64, 3/32 in

Turn Off wire feeder and welding power source.

1 Nozzle Extension

Remove as shown.

2Contact Tip

3Compression Nut

To remove, see Section 5-6.

4Liner

5Contact Tip Adapter

6Washer

7Extension Adapter

8Setscrew

Loosen setscrew and remove adapter. Install new adapter and tighten setscrew. Reinstall liner, contact tip, compression nut, and nozzle.

150 430-B

OM-1581 Page 33

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Contents Processes OM-1581Description From Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageElectric Shock can kill Fumes and Gases can be hazardousWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards About Pacemakers EMF InformationConsignes DE Securite Lire Avant Utilisation Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéWire Feeder Specifications SpecificationsGun 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 Rear Of Water Fitting Left- Hand Threads Water-Cooled Feeder ConnectionsVoltage Sensing Lead Connections Adjusting Contact Tip PositionContactor 12 VAC/Contactor Control Plug InformationPLG5 Installing Wire Spool Threading Welding Wire Through Feeder Coolant Guidelines Threading Welding Wire Through GunAdjusting Wire Feed Starting Speed Operation Safety EquipmentFront Panel Controls Of Feeder Air-Cooled Model Shown Work And Voltage Sensing Cable ClampsVoltage/Wire Speed Switch And Meter Optional Jog SwitchRun-In Speed Control Spot Controls Optional Remote Voltage Control Optional Power SwitchInternal Controls Flowmeter OptionalShielding Gas Gun ControlsCoolant Supply For Water-Cooled Models Only Sequence Of Gas Metal Arc Welding Gmaw Continuous Or SpotRoutine Maintenance Maintenance & TroubleshootingMonths Changing Or Cleaning Gun Drive Roll Changing Feeder Drive Roll And Wire Inlet Guide Replacing Or Cleaning Feeder Drive Roll Bearing Replacing Or Cleaning Gun Drive Roll BearingRemoving Contact Tip Adapter In Air-Cooled Models Changing Gun Contact Tip And LinerRemoving Contact Tip Adapter In Water-Cooled Models Replacing Hub AssemblyWater Flow Switch Optional For Water-Cooled Models Adjusting Hub TensionOverload Protection Wire Feeder Trouble TroubleshootingGun Trouble Circuit Diagram For Wire Feeder Electrical DiagramsCircuit Diagram For Gun Main Assembly Parts ListDia 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 Hobart Welding Products Contact your Distributor for