Miller Electric 271, 273, 293, 333, 383

OM-223 194 Page 28

April 17, 2006

Figure 7-2. Main Assembly for Migmatic 271

Contents

Main From Miller to You TABLE OF CONTENTS Declaration of Conformity for European Community (CE) Products NOTE Manufacturer:European Contact: SECTION 1 SAFETY PRECAUTIONS - READ BEFORE USING 1-1. Symbol Usage . 1-2. Arc Welding Hazards ELECTRIC SHOCK can kill. ARC RAYS can burn eyes and skin. WELDING can cause fire or explosion. FLYING METAL can injure eyes. BUILDUP OF GAS can injure or kill. HOT PARTS can cause severe burns. 1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. FALLING UNIT can cause injury. OVERUSE can cause OVERHEATING STATIC (ESD) can damage PC boards. 1-5. Principal Safety Standards 1-6. EMF Information SECTION 2 DEFINITIONS Page Page SECTION 3 INSTALLATION 3-1. Specifications 3-2. Duty Cycle And Overheating A or V Model 383 Model 333 3-3. Volt-Ampere Curves 3-4. Installing Gas Supply 3-5. Installing Wire Spool and Adjusting Hub Tension 3-6. Positoning Jumper Links (230/400V 3-Phase Models) 3-7. Electrical Service Guide 3-8. Selecting a Location and Connecting Input Power (1-Phase and 3-Phase) 3-9. Installing Drive Rolls and Wire Guide 3-10. Aligning Drive Rolls and Wire Guide 3-11. Threading Welding Wire and Adjusting Pressure Roll Tension . 3-12. Using Gun/Cable Holder 3-13. Setting Gun Polarity for Wire Type (Optional) SECTION 4 OPERATION 4-1. Controls for Migmatic 271/273 4-2. Controls for Migmatic 293/333 4-3. Controls for Migmatic 383 4-4. Run-In, Burnback (Optional) and Spot Weld Timer Controls SECTION 5 MAINTENANCE &TROUBLESHOOTING 5-1. Routine Maintenance . 3 Months 6 Months 5-4. Troubleshooting Trouble Remedy Page SECTION 6 ELECTRICAL DIAGRAMS Page Page Page Page Page Page Page Page Page Page Page Figure 7-4. Main Assembly for Migmatic 293 Page Figure 7-5. Main Assembly for Migmatic 333 Page Figure 7-6. Main Assembly for Migmatic 383 Page . NOTE Page Page Effective January 1, 2006 Please complete and retain with your personal records. Owners Record Always provide Model Name and Serial/Style Number. Contact a DISTRIBUTOR or SERVICE AGENCY near you. For Service

Miller Electric - page 32

Models: 271 273 293 333 383