Hobart Welding Products OM-1594 manual Feeder Drive Assembly Maintenance, Wire size

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6-1. 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 4-13).

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 6-2 for XR-Edge guns; see Sections 6-7 and 6-8 for pistol-grip guns), and gun liner (see Section 6-4 for XR-Edge guns; see Section 6-9 for pistol-grip guns).

802 193-A

OM-1594 Page 31

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Contents Description OM-1594Processes From Hobart to You Table of Contents Electrical Diagrams Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explo- sion Flying Metal can injure eyesPrincipal Safety Standards About Pacemakers EMF InformationIdentifie un message de sé curité particulier Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peutConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Keep your head out of the fumes Disconnect input plug or power before working on machineDrive rolls can injure fingers Rating Label For CE Products Diameter Symbols And DefinitionsSpecifications PowerContinuous Welding Duty Cycle And OverheatingContinuous Welding Minutes Welding Above 50 psi 345 kPa Do not use gas pressureRear Panel Air-Cooled Feeder ConnectionsAir-Cooled Gun Connections Water-Cooled Feeder Connections Water-Cooled Gun Connections Voltage Sensing Lead Connections Pin Plug InformationMeters/Minute Inches/Minute Digital Meter DisplayPistol Grip Gun Adjusting Contact Tip PositionOpening Top Cover Of XR-Edge Gun XR Edge GunRemoving Top Cover Of Pistol Grip Gun Installing Wire SpoolTools Needed Open tension arm Threading Welding Wire Through Feeder150 mm Pull and hold wire cut off end Proceed to Section For Pistol-Grip Gun Threading Welding Wire Through GunNonconductive Surface Feed wire to check drive roll For XR-Edge GunAdjusting 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 Shielding Gas Coolant Supply For Water-Cooled Models Only Gun ControlsSequence Of Gas Metal Arc Welding Gmaw Continuous Or Spot Wire size Feeder Drive Assembly MaintenancePost Pressure Roll w/Bearing Gun Drive Assembly Maintenance For An XR-Edge GunInsert chamfered end of liner into head tube Removing Contact Tip Adapter In XR-Edge GunsReplacing Head Tube Liner In XR-Edge Guns Replacing Gun Cable Liner Turn Off welding power Source and wire feederChanging Gun Contact Tip Replacing Or Cleaning Gun Drive Roll In Pistol-Grip GunsInsert chamfered end of liner into head tube Tool Needed Turn Off wire feeder and welding power source Top CoverReplacing Head Tube Liner In Pistol-Grip Guns Pressure RollRemoving Contact Tip Adapter In Air-Cooled Pistol-Grip Guns Reinstall gun cover Replacing Hub AssemblyEngine Welding Water Flow Switch Optional For Water-Cooled ModelsTurn Off Wire Overload ProtectionTrouble Remedy TroubleshootingDisconnect power before troubleshooting Filter, and clean fittingsOM-1594 Electrical Diagrams 186 931-D Circuit Diagram For Gun OM-1594 12 13 16 17 Main AssemblyMP1 Motor & Wire Drive Motor & Wire Drive -1 Item See Figure Panel, Front w/Components Water-Cooled Model IllustratedPanel, Front w/Components -1 Item See Exploded View Of XR-Edge Gun185 202 Barrel Assembly Of XR-Edge Gun 46 47 Exploded View Of Pistol-Grip Gun15Fig 133 Dia Part Barrel Assembly Of Pistol-Grip Gun 137 Barrel ASSEMBLY, water cooled 15W & 30W models OM-1594 OM-1594 Support ServiceCall Contact your Distributor forHobart Welding Products