Hobart Welding Products OM-198 683C

OM-198 683 Page 27

SECTION 5 – ELECTRICAL DIAGRAM

197 699-D

Figure 5-1. Circuit Diagram

Contents

Main From Hobart to You TABLE OF CONTENTS WARNING Page 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. EMF Information OM-198 683 Page 5 SECTION 1 CONSIGNES DE SECURITE LIRE AVANT UTILISATION 1-1. Signification des symboles . 1-2. Dangers relatifs au soudage larc UN CHOC LECTRIQUE peut tuer. LES RAYONS DE LARC peuvent pro- voquer des brlures dans les yeux et sur la peau. LE SOUDAGE peut provoquer un incendie ou une explosion. DES PARTICULES VOLANTES peuvent blesser les yeux. LES ACCUMULATIONS DE GAZ ris- quent de provoquer des blessures ou mme la mort. DES PICES CHAUDES peuvent pro- voquer des brlures graves. 1-3. Dangers supplmentaires en relation avec linstallation, le fonctionnement et la maintenance 1-4. Principales normes de scurit 1-5. Information sur les champs lectromagntiques SECTION 2 INSTALLATION 2-1. Specifications 2-2. Welding Power Source Duty Cycle And Overheating A or V 2-3. Welding Gun Duty Cycle And Overheating CAUTION WELDING LONGER THAN RATED DUTY CYCLE can damage gun and void warranty. 2-4. Volt-Ampere Curves 2-5. Installing Work Clamp 2-6. Installing Welding Gun 2-7. Connecting Olympic 30A Gun 2-8. Setting Gun Polarity For Wire Type Changing Polarity Wire Drive Assembly Lead Work Clamp Lead + - 2-9. Installing Gas Supply 2-10. Installing Wire Spool and Adjusting Hub Tension 2-11. Positioning Jumper Links 2-12. Electrical Service Guide 2-13. Selecting A Location And Connecting Input Power 2-14. Threading Welding Wire . Page Page SECTION 3 OPERATION 3-1. Controls 3-2. Voltmeter And Wire Feed Speed Meter Operation SECTION 4 MAINTENANCE &TROUBLESHOOTING 4-1. Routine Maintenance . 3 Months 6 Months 4-4. Replacing Gun Contact Tip 4-5. Changing Drive Roll and Wire Inlet Guide 4-6. Aligning Drive Rolls and Wire Guide 4-7. Cleaning Or Replacing Gun Liner 4-8. Replacing Switch And/Or Head Tube 4-9. Troubleshooting Trouble Remedy Page Page Page Page Page Page Figure 6-3. M-25 Gun Page Page Page Note Page Page Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. Effective October 1, 1999 Please complete and retain with your personal records. Resources Available Always provide Model Name and Serial/Style Number. Owners Record