Miller Electric XR Control manual Replacing Hub Assembly

Page 44

7-10. Replacing Hub Assembly

1

2

3

4

Tools Needed:

7/16 in

Remove gun top cover and release pressure arm (see Sections 5-9and 5-10).

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.

Close gun pressure roll assembly and reinstall gun cover.

5

6

2

7 8

801 577 / Ref. 143 223-A

OM-1594 Page 38

Image 44

Contents Description OM-1594181 715ZProcesses From Miller to You Table of Contents Options and Accessories Warranty Directives StandardsPage 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+ + Rating Label For CE Products Symbols And Definitions SpecificationsPower DiameterDuty Cycle And Overheating Do not use gas pressure Above 50 psi 345 kPaAir-Cooled Feeder Connections Air-Cooled Gun Connections Water-Cooled Feeder Connections Water-Cooled Gun Connections Installing voltage sensing lead Pin Plug InformationDigital Meter Display Meter Circuit Board SettingsVoltage Sensing Function Opening Top Cover Of XR-Edge Gun Removing Top Cover Of Pistol Grip GunInstalling Wire Spool Threading Welding Wire Through Feeder It from unravelingThreading Welding Wire Through Gun For XR-Edge GunFor Pistol-Grip Gun For Both GunsAdjusting 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 seconds− Operation ControlsGun wire feed speed Internal ControlsCoolant Supply For Water-Cooled Models Only Gun ControlsShielding Gas Disconnect power Sequence Of Gas Metal Arc Welding Gmaw − Continuous Or SpotTo 6 Weeks MonthsFeeder Drive Assembly Maintenance Wire sizeGun Drive Assembly Maintenance For An XR-Edge Gun Post Pressure Roll w/Bearing030-1/16 wire size Replacing Head Tube Liner In XR-Edge GunsTurn Off welding power source and wire feeder Replacing The LinerReplacing Or Cleaning Gun Drive Roll In Pistol-Grip Guns Changing Gun Contact TipReplacing Head Tube Liner In Pistol-Grip Guns Removing Diffuser In Air And Water-Cooled Pistol-Grip Guns Replacing Hub Assembly Water Flow Switch Optional For Water-Cooled Models Turn Off WireOverload Protection Engine WeldingTroubleshooting Disconnect power before troubleshootingTrouble Remedy Shielding gas does not flowOM-1594 − Electrical Diagrams 218 814-B Circuit Diagram For XR Edge Gun OM-1594 − Parts List MP1 Motor & Wire Drive Motor & Wire Drive -1Item Panel, Front w/Components Water-Cooled Model Illustrated Panel, Front w/Components -1Item Exploded View Of XR-Edge Gun Part Description Quantity Part Description Barrel Assembly Of XR-Edge Gun Exploded View Of Pistol-Grip Gun 214 166 Barrel Assembly Of Pistol-Grip Gun Number XR-A Spoolmatic Head TubeXR-A Edge Head Tube XR-W Edge Head TubeExtra Heavy Duty FasTiptContact Tips Consumables Flowchart NozzlesHeavy Duty FasTiptContact Tips Consumables Flowchart Tapered FasTipt Contact Tips Value Multi−Turn Contact TipsGas Diffusers InsulatorsStart Your Professional Welding Career Now Page Service SupportOwner’s Record Miller Electric Mfg. Co