Miller Electric XR Control manual Gun Drive Assembly Maintenance For An XR-Edge Gun

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7-2. Gun Drive Assembly Maintenance For An XR-Edge Gun

1

2

3

Conductive

Grease

Tools Needed:

4

5/16 in

Retract wire onto spool.

1Screw

2Drive Roll

Use wire brush to clean drive roll. Install drive roll with hex opening down toward shaft hex, and secure with screw.

.Apply conductive grease to

drive roll post every 4 to 6 weeks.

3Post

4Pressure Roll w/Bearing

Use wire brush to clean pressure roll. Install pressure roll so that gear teeth mesh with drive roll gear teeth, and secure with screw.

If changing drive roll in feeder, see Section 7-1.

Thread welding wire through gun. Close and secure pressure roll assembly. Adjust drive roll pressure, if necessary (see Section 5-12).

Drive roll and pressure roll are available for the following wire sizes:

.030 wire size

.035 wire size

.047 wire size

.062 wire size

When changing wire size, change control box drive roll and idler (see Section 7-1), gun pressure roll and drive roll, and gun liner (see Section 7-3and 7-8).

Close top cover.

Ref. 801 556-C

OM-1594 Page 32

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Contents Description OM-1594181 715ZProcesses From Miller to You Table of Contents Options and Accessories Warranty Directives StandardsPage 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 explosion 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 DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaques+ + Rating Label For CE Products Power Symbols And DefinitionsSpecifications 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 unravelingFor Pistol-Grip Gun Threading Welding Wire Through GunFor XR-Edge 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 To 6 Weeks Disconnect powerSequence Of Gas Metal Arc Welding Gmaw − Continuous Or Spot 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 Overload Protection Water Flow Switch Optional For Water-Cooled ModelsTurn Off Wire Engine WeldingTrouble Remedy TroubleshootingDisconnect power before troubleshooting 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 XR-A Edge Head Tube NumberXR-A Spoolmatic Head Tube XR-W Edge Head TubeExtra Heavy Duty FasTiptContact Tips Consumables Flowchart NozzlesHeavy Duty FasTiptContact Tips Gas Diffusers Consumables Flowchart Tapered FasTipt Contact TipsValue Multi−Turn Contact Tips InsulatorsStart Your Professional Welding Career Now Page Service SupportOwner’s Record Miller Electric Mfg. Co