Miller Electric MARK VIII-2 manual From Miller to You

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Miller is the first welding equipment manufacturer in the U.S.A. to be registered to the ISO 9001:2000 Quality System Standard.

From Miller to You

Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way.

That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy.

Today, the people that build and sell Miller products continue the tradition. They’re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your Miller products. Please take time to read the Safety precautions. They will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick and easy. With Miller you can count on years of reliable service with proper maintenance. And if for some reason the unit needs repair, there’s a Troubleshooting section that will help you figure out what the problem is. The parts list will then help you to decide the exact part you may need to fix the problem. Warranty and service information for your particular model are also provided.

Miller Electric manufactures a full line

of welders and welding related equipment. For information on other quality Miller

products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets. To locate your nearest distributor or service agency call 1-800-4-A-Miller, or visit us at www.MillerWelds.com on the web.

Mil_Thank 4/05

Working as hard as you do

−every power source from Miller is backed by the most hassle-free warranty in the business.

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Contents OM-218 DescriptionFrom Miller to You Table of Contents Page 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 cardiaquesVolt-Ampere Curves − SpecificationsSpecifications Amperes Input at Rated Load Output, 60 HzFor Main Transformer Duty Cycle And OverheatingFor Each Module And Total System OverheatingMovement − InstallationSelecting a Location And Moving Polyweld System Location And AirflowWeight Dimensions, Weights And Base Mounting Hole LayoutDimensions Selecting And Preparing Weld Output Cables350 ft 400 ft 15m 30m 45 m 60 m 70 m 90 m 105 m 120 m Weld Cable Size150 ft 200 ft 250 ft Connecting Weld Output Cables Connecting To Weld Output TerminalsCommon Work Cable Size Read Safety Blocks at start of -6before proceedingStandard Module Connections Separate Work ConnectionsParallel Module Connections Separate Work Connections Common WorkRemote Amperage Control Receptacle Remote Contactor Control Connections OptionalPositioning Jumper Links Connecting Input PowerVolts AC Duplex Receptacle TE3 TE2Close and secure access door on welding power source Connecting Input PowerWelding Power Source Input Power Con- nections Disconnect Device Input Power Connec- tions− Operation Electrical Service GuideTime-Delay ControlsMin 35 a Max 125 a Set Switch Set Desired Maximum Amperage Amperage Adjustment ControlsPower Switch Push Buttons And Pilot Light Hz Model ShownMonths − Maintenance & TroubleshootingRoutine Maintenance Overload ProtectionModule Fuse Links F11 And F12 Through F81 And F82 Blank Module PanelControl Fuses F3 And F4 Before inspecting, maintaining, or servicing TroubleshootingTurn Off polyweld system, and disconnect input power OM-218 − Electrical Diagram Circuit Diagram For Polyweld SystemSD-082 527-C Amperage Range Gas Type Polarity − Selecting and Preparing Tungsten ElectrodeSelecting Tungsten Electrode Preparing Tungsten For DC Electrode Negative Dcen Welding Torch Movement During Welding − Guidelines for TIG Welding GtawPositioining The Torch Positioning Torch Tungsten For Various Weld Joints Butt Weld And Stringer Bead Joint Lap Joint Corner Joint− Parts List Main Assembly Section aTP1 Main Assembly Section B CR1 194 Panel, Front Module w/Components -1Item Panel, Front Lower w/Components -1Item Panel, Front Lower w/ComponentsPage Support ServiceYour distributor also gives For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s