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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 which 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 catalog sheets. Working as hard as you do – every power source from Miller is backed by the most hassle-free warranty in the business. TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING . . . . . . . . . 1 1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1-3. Additional Symbols for Installation, Operation, and Maintenance . . . . . . 3 1-4. Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1-5.EMF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 SECTION 2 – INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2-1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2-2.Duty Cycle and Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2-3.Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2-4. Positioning Jumper Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2-5. Electrical Service Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2-6. Selecting a Location and Connecting Input Power . . . . . . . . . . . . . . . . . . 7 SECTION 3 – OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3-1. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 SECTION 4 – MAINTENANCE AND TROUBLESHOOTING . . . . . . . . . . . . . . . 9 4-1. Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4-2. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 SECTION 5 – ELECTRICAL DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 SECTION 6 – PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 WARRANTY Declaration of Conformity Manufacturer’s Name: MILLER Europe S.r.l. Manufacturer’s Address: Via Privata Iseo, 6/E 20098 San Giuliano Milanese, Italy Declares that this product: Bluthunder 340/440 Conforms to the following Directives and Standards: Directives Electromagnetic Compatibility Directives: 89/336/EEC, 92/31/EEC Compatibilita Elettromagnetica: (EMC) 89/336/CEE, 92/31/CEE Low Voltage: 73/23/EEC Direttiva bassa tensione: 73/23/CEE Machinery Directives: 89/392/EEC Direttiva Macchine: 89/392/CEE And their amendments 91/368/EEC, 93/C 133/04, 93/68/EEC Aggiornate dalle direttive 91/368/CEE, 93/C 133/04, 93/68/CEE Standards Electromagnetic compatibility (EMC) Product standard for arc welding equipment: EN50199: August 1995 Norma sulla compatibilita elettromagnetica (EMC) dei prodotti per apparecchi di saldatura ad arco: EN50199, agosto 1995 Safety Requirements for Arc Welding Equipment part 1: EN 60974-1, 1989 Prescrizioni di sicurezza per apparecchi di saldatura ad arco, Sezione 1: EN 60974-1, 1989 European Contact: Danilo Fedolfi, Managing Director MILLER Europe S.r.l. Via Privata Iseo, 6/E 20098 San Giuliano Milanese, Italy Telephone: 39(0)2-982901 Fax: 39(0)2-98290-203 dec_con 5/97 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_4/98 1...
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