Hobart Welding Products OM-1594 manual Replacing Hub Assembly, Reinstall gun cover

Page 42

6-12. Replacing Hub Assembly

Remove gun top cover and release pressure arm (see Sections 4-10 and 4-11).

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 and thread welding wire. Close and latch door.

1	Close gun pressure roll assembly
2	and reinstall gun cover.

5 3

6

4

2

7

8

Tools Needed:

7/16 in

801 577 / Ref. 143 223-A

OM-1594 Page 38

Image 42

Contents OM-1594 ProcessesDescription From Hobart to You Table of Contents Electrical Diagrams Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explo- sion Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersLES Fumé ES ET LES GAZ peuvent ê tre dangereux Signification des symbolesUN Choc É Lectrique peut tuer Identifie un message de sé curité particulierLE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxLE Bruit peut affecter l’ouïe ’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 tiquesConsignes relatives aux stimulateurs cardiaques Disconnect input plug or power before working on machine Drive rolls can injure fingersKeep your head out of the fumes Rating Label For CE Products Power Symbols And DefinitionsSpecifications DiameterDuty Cycle And Overheating Continuous Welding Minutes WeldingContinuous Welding Do not use gas pressure Above 50 psi 345 kPaAir-Cooled Feeder Connections Rear PanelAir-Cooled Gun Connections Water-Cooled Feeder Connections Water-Cooled Gun Connections Pin Plug Information Voltage Sensing Lead ConnectionsDigital Meter Display Meters/Minute Inches/MinuteXR Edge Gun Adjusting Contact Tip PositionOpening Top Cover Of XR-Edge Gun Pistol Grip GunInstalling Wire Spool Removing Top Cover Of Pistol Grip GunThreading Welding Wire Through Feeder 150 mm Pull and hold wire cut off end Proceed to SectionTools Needed Open tension arm For XR-Edge Gun Threading Welding Wire Through GunNonconductive Surface Feed wire to check drive roll For Pistol-Grip GunAdjusting Wire Feed Starting Speed Setting Switches For Preflow And Postflow Adjusting Trigger Hold Actuation Time Trigger hold actuation time Range is from 0 to 4 secondsOperation ControlsInternal Controls Gun Controls Shielding Gas Coolant Supply For Water-Cooled Models OnlySequence Of Gas Metal Arc Welding Gmaw Continuous Or Spot Feeder Drive Assembly Maintenance Wire sizeGun Drive Assembly Maintenance For An XR-Edge Gun Post Pressure Roll w/BearingRemoving Contact Tip Adapter In XR-Edge Guns Replacing Head Tube Liner In XR-Edge GunsInsert chamfered end of liner into head tube Turn Off welding power Source and wire feeder Replacing Gun Cable LinerReplacing Or Cleaning Gun Drive Roll In Pistol-Grip Guns Changing Gun Contact TipPressure Roll Turn Off wire feeder and welding power source Top CoverReplacing Head Tube Liner In Pistol-Grip Guns Insert chamfered end of liner into head tube Tool NeededRemoving Contact Tip Adapter In Air-Cooled Pistol-Grip Guns Replacing Hub Assembly Reinstall gun coverOverload Protection Water Flow Switch Optional For Water-Cooled ModelsTurn Off Wire Engine WeldingFilter, and clean fittings TroubleshootingDisconnect power before troubleshooting Trouble RemedyOM-1594 Electrical Diagrams 186 931-D Circuit Diagram For Gun OM-1594 Main Assembly 12 13 16 17MP1 Motor & Wire Drive Motor & Wire Drive -1 Item Panel, Front w/Components Water-Cooled Model Illustrated See FigurePanel, Front w/Components -1 Item Exploded View Of XR-Edge Gun See185 202 Barrel Assembly Of XR-Edge Gun Exploded View Of Pistol-Grip Gun 15Fig46 47 133 Dia Part Barrel Assembly Of Pistol-Grip Gun 137 Barrel ASSEMBLY, water cooled 15W & 30W models OM-1594 OM-1594 Service SupportContact your Distributor for Hobart Welding ProductsCall