Miller Electric Millermatic DVI, M-10 Gun Replacing Switch And/Or Head Tube, Disconnect gun first

Page 34

6-9. Replacing Switch And/Or Head Tube

Y Disconnect gun first.

1Remove handle locking nut.

3 Slide handle.

2 Remove switch housing. Note: If installing new switch, push switch lead connectors onto terminal of new switch (polarity is not important). Install switch back into handle, and secure with handle locking nut. If replacing head tube, continue to end of figure.

4Secure head tube in vice.

5Loosen jam nut. Remove from vice and turn head tube out by hand.

6Install existing shock washer onto new head tube. Hand-tighten head tube into connector cable.

7Place head tube in vice and tighten until nuts are tight.

8Remove from vice. Reposition handle and install switch housing. Secure with handle locking nut.

Tools Needed:

3/4 in

Ref. 800 795-C

OM-1330 Page 30

Image 34
Contents Description OM-1330220 237HProcesses File MIG GmawFrom Miller to You Table of Contents − Parts List 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 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 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 cardiaquesGeneral Specifications Symbols And DefinitionsSpecifications 115 VACDuty Cycle And Overheating OverheatingMIG Welding Gun Duty Cycle And Overheating Volt-Ampere CurvesDefinition Connecting To Weld Output Terminals Installing Work ClampInstalling Welding Gun Setting Gun Polarity For Wire TypeInstalling Gas Supply Rear PanelInstalling MIG Wire Spool and Adjusting Hub Tension Installing 1 Or 2 lb Wire SpoolConnecting 1-Phase Input Power For 230 VAC Hz Single Phase Electrical Service Guide For 230 VACExtension Cord Data Selecting a Location And Connecting Input Power Do not move or operate unit where it could tipThreading Welding Wire ScaleTurn Off unit, and disconnect input power Installing Diverter Valve And Switch For Optional Spool GunOperation Connecting An Optional Spool Gun End of hose− Operation ControlsOM-1330 Weld Parameter Chart 220 493-A Supplementary Protector CB1 Routine MaintenanceMonths Unit Overload Changing Drive Roll and Wire Inlet GuideTurn Off power Replacing Gun Contact TipAligning Drive Rolls and Wire Guide Removing Knob From Front PanelDisconnect gun from unit Cleaning Or Replacing Gun LinerTo Reassemble Gun Replacing Switch And/Or Head Tube Disconnect gun firstTroubleshooting Welding Trouble Remedy− Electrical Diagram 220 197-E − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsSelect Wire Size Typical MIG Process Control SettingsWire Recommendation Wire Speed Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Waviness Of Bead Troubleshooting − DistortionCommon MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentWire does not feed ApplicationWelding arc not stable Wire slipping in drive rolls − Parts List CABLE,POWER 12 FT 5 in 12GA 4C Soow W/SPL Plug Baffle, Center w/Components Baffle, Center w/Components -1Item Panel, Rear w/Components Panel, Front w/Components See Section Drive Roll & Wire Guide Kits 204857M-10 Gun Drive Roll And Wire Guide Kits 207 Optional Spoolmate Spool Gun SwitchPage Page Service SupportOwner’s Record Miller Electric Mfg. Co
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