Hobart Welding Products 300 AC, 300 DC

OM-318 Page 19

SECTION 5 – ELECTRICAL DIAGRAM

SC-187 701

Figure 5-1. Circuit Diagram

Contents

Main Cybershop 300 AC/DC 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-318 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 B. CC Mode DC C. CV Mode DC Rated Weld Max. Input at Rated Load Output, 50/60 Hz, Single-Phase Model Weld 2-3. Duty Cycle And Overheating A A. AC Mode B. DC Mode (CV or CC) 2-4. Selecting A Location 2-5. Dimensions And Weights Dimensions 2-6. Weld Output Terminals And Selecting Cable Sizes 2-7. Remote 14 Receptacle 2-8. 115 Volts AC Duplex Receptacle 2-9. Electrical Service Guide 60 Hz 50 Hz 2-10. Placing Jumper Links And Connecting Input Power SECTION 3 OPERATION 3-1. Controls SECTION 4 MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance 3 Months 6 Months 4-2. Circuit Breakers CB1 And CB2 4-3. Troubleshooting Trouble Remedy Page Page SECTION 6 PARTS LIST Figure 6-1. Main Assembly Page Figure 6-2. Panel, Front w/Components Page Page Page Page Warranty Questions? Call 1-877-HOBART1 for your local Hobart distributor. Effective January 1, 2000 (Equipment with a serial number preface of LA or newer) Please complete and retain with your personal records. Resources Available Always provide Model Name and Serial/Style Number. Owners Record