Miller Electric XR Control manual Feeder Drive Assembly Maintenance, Wire size

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7-1. Feeder Drive Assembly Maintenance

1

5

6

87

2

3

4

Tools Needed:

5/16 in

Retract wire onto spool.

1Pressure Roll Assembly

2Drive Motor Shaft

3Drive Roll

4Screw

Use wire brush to clean drive roll.

5Drive Roll Idler

6Shoulder Washers

Use wire brush to clean idler.

7Outlet Guide

8Wire Inlet Guide

Pull guide toward rear of feeder to remove. Install new guide.

Thread welding wire and adjust drive roll pressure, if necessary (see Section 5-12).

Drive roll and idler are available for the following wire size ranges:

.030-.035 wire size

.047 wire size

.062 wire size

When changing wire size, change control box drive roll and idler, gun pressure roll and drive roll (see Section 7-2for XR-Edge guns; see Sections 7-6and 7-7for pistol-grip guns), and gun liner (see Section 7-3for XR-Edge guns; see Section 7-8for pistol-grip guns).

802 193-A

OM-1594 Page 31

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Contents Processes OM-1594181 715ZDescription From Miller to You Table of Contents Options and Accessories Warranty Standards DirectivesPage Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécurité+ + Rating Label For CE Products Specifications Symbols And DefinitionsPower DiameterDuty Cycle And Overheating Above 50 psi 345 kPa Do not use gas pressureAir-Cooled Feeder Connections Air-Cooled Gun Connections Water-Cooled Feeder Connections Water-Cooled Gun Connections Pin Plug Information Installing voltage sensing leadVoltage Sensing Function Meter Circuit Board SettingsDigital Meter Display Removing Top Cover Of Pistol Grip Gun Opening Top Cover Of XR-Edge GunInstalling Wire Spool It from unraveling Threading Welding Wire Through FeederFor XR-Edge Gun Threading Welding Wire Through GunFor Pistol-Grip Gun For Both GunsAdjusting Wire Feed Starting Speed Setting Switches For Preflow And Postflow Trigger hold actuation time range is from 0 to 4 seconds Adjusting Trigger Hold Actuation TimeControls − OperationInternal Controls Gun wire feed speedShielding Gas Gun ControlsCoolant Supply For Water-Cooled Models Only Sequence Of Gas Metal Arc Welding Gmaw − Continuous Or Spot Disconnect powerTo 6 Weeks MonthsWire size Feeder Drive Assembly MaintenancePost Pressure Roll w/Bearing Gun Drive Assembly Maintenance For An XR-Edge GunReplacing Head Tube Liner In XR-Edge Guns 030-1/16 wire sizeReplacing The Liner Turn Off welding power source and wire feederChanging Gun Contact Tip Replacing Or Cleaning Gun Drive Roll In Pistol-Grip GunsReplacing Head Tube Liner In Pistol-Grip Guns Removing Diffuser In Air And Water-Cooled Pistol-Grip Guns Replacing Hub Assembly Turn Off Wire Water Flow Switch Optional For Water-Cooled ModelsOverload Protection Engine WeldingDisconnect power before troubleshooting 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 XR-A Spoolmatic Head Tube NumberXR-A Edge Head Tube XR-W Edge Head TubeHeavy Duty FasTiptContact Tips Consumables Flowchart NozzlesExtra Heavy Duty FasTiptContact Tips Value Multi−Turn Contact Tips Consumables Flowchart Tapered FasTipt Contact TipsGas Diffusers InsulatorsStart Your Professional Welding Career Now Page Support ServiceMiller Electric Mfg. Co Owner’s Record