Miller Electric MOG-Pak, MOG-300 Work Clamp, Optional Polarity Switch, Arcing can damage switch

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1

4-3. Work Clamp

1

Tools Needed:

1 Work Clamp

Connect work clamp to a clean, paint-free location on workpiece, as close to weld area as possible.

Use wire brush or sandpaper to clean metal at weld joint area. Use chipping hammer to remove slag after welding.

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4-4. Optional Polarity Switch

WARNING

ELECTRIC SHOCK can kill; TWO TIMES NORMAL OPEN-CIRCUIT VOLTS exists between electrode holders of opposite polarity.

•Do not touch live electrical parts.

•Do not touch electrode holders of opposite polarity at the same time.

•Separate electrode holders of opposite polarity to prevent contact.

•See ANSI Z49.1 and OSHA TITLE 29, CHAPTER XVII, PART 1910, Subpart Q.

ARCING can damage switch.

•Do not change Polarity switch position while welding or under load.

Arcing inside switch can damage contacts, causing switch to fail.

warn5.1* 2/93

1 Polarity Switch

Use switch to select polarity of weld output.

For Direct Current Electrode Nega- tive (DCEN), use Straight (Str) position.

For Direct Current Electrode Posi- tive (DCEP), use Reverse (Rev) position.

Ref. ST-122 903-D

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Contents OM-808 ProcessesDescription From Miller to You Table of Contents Page 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 killPrincipal Safety Standards About Pacemakers EMF InformationConsignes DE Securite Lire Avant Utilisation Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxLE Bruit peut affecter l’ouïe LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sé curité Information sur les champs é lectromagné tiquesConsignes relatives aux stimulateurs cardiaques Specifications Resistance GridGrid Rack Typical Multiple Operator System Component Relationships InstallationTurn Off welding power source Before moving grid or rack Resistance GridMulti-Grid Rack Tools Needed Weld Input/Output Cables For Multi-Grid Rack Male Camlok Connector Assembly Female Camlok Connector AssemblyOptional Remote Receptacle Information And Connections Weld Cable Size150 ft 200 ft 250 ft 300 ft 350 ft 45 m 60 m 70 m 90 m 105 m 120 mSafety Equipment OperationControls Dual Model Shown Optional Polarity Switch Arcing can damage switchWork Clamp Amperage Controls Optional Remote Grid Amperage Control Paralleling Switch Dual Models OnlyRoutine Maintenance Months Maintenance & TroubleshootingTurn Off all power before maintaining Sequence Of Shielded Metal Arc Welding SmawOverload Protection TroubleshootingCircuit Diagram For 300 Ampere Model Electrical DiagramsCircuit Diagram For 400 Ampere Model Circuit Diagram For 250/250 Ampere Model Circuit Diagram For 350/350 Ampere Model Main Assembly Parts ListDia Part Panel, Front w/Components Nameplate Resistor Assembly, Current 049 BUS BAR, interconnecting resistors MOG-Pak 6 APR Optional Equipment MOG-Pak 2, 4Remote Control Support ServiceMiller Electric Mfg. Co Owner’s Record