Hobart Welding Products 700I, HP-70

OM-244 013 Page 32

SECTION 7 ELECTRICAL DIAGRAM

Figure 7-1. Circuit Diagram

Contents

Main AirForce 700i And HP-70 Torch From Miller to You TABLE OF CONTENTS Page SECTION 1 SAFETY PRECAUTIONS - READ BEFORE USING 1-1. Symbol Usage . 1-2. Plasma Arc Cutting Hazards CUTTING can cause fire or explosion. SIGNIFICANT DC VOLTAGE exists in inverter power sources AFTER the re- moval of input power. ELECTRIC SHOCK can kill. EXPLODING PARTS can injure. FLYING SPARKS can injure. ARC RAYS can burn eyes and skin. 1-3. Additional Symbols For Installation, Operation, And Maintenance HOT PARTS can burn. MOVING PARTS can injure. READ INSTRUCTIONS. FLYING METAL or DIRT can injure eyes. 1-4. California Proposition 65 Warnings 1-5. Principal Safety Standards 1-6. EMF Information SECTION 2 CONSIGNES DE SCURIT LIRE AVANT UTILISATION 2-1. Signification des symboles . 2-2. Dangers lis au coupage larc au plasma LE COUPAGE prsente un risque de feu ou dexplosion. Risque de blessure en cas DEXPLOSION DES PICES. LES TINCELLES PROJETES peuvent provoquer des blessures. LES RAYONS DARC peuvent entra- ner des brlures aux yeux et la peau. LE BRUIT peut endommager loue. LES FUMES ET LES GAZ peuvent tre dangereux. 2-3. Dangers supplmentaires en relation avec linstallation, le fonctionnement et la maintenance LES PICES CHAUDES peuvent provoquer des brlures. Les PICES MOBILES peuvent provoquer des blessures. LIRE LES INSTRUCTIONS. DES PIECES DE METAL ou DES SA- LETES peuvent provoquer des bles- sures dans les yeux. LEMPLOI EXCESSIF peut SURCHAUFFER LQUIPEMENT. Danger DEXPLOSION DHYDROGNE. LA CHUTE DE LQUIPEMENT peut provoquer des blessures. Risque DINCENDIE OU DEXPLOSION. LES CHARGES LECTROSTATI- QUES peuvent endommager les cir- cuits imprims. 2-4. Proposition californienne 65 Avertissements 2-5. Principales normes de scurit 2-6. Informations relatives aux CEM Page SECTION 4 INSTALLATION 4-1. Specifications Power Supply Input Output General 4-2. Duty Cycle And Overheating A 4-3. Power Source Dimensions And Weight 4-4. Torch Dimensions And Weight 4-5. Selecting A Location ! 4-6. Connecting Gas/Air Supply . 4-7. Connecting Work Clamp . 4-8. Electrical Service Guide 4-9. Extension Cord Data . Phase Hertz Fuse Size Or Input Voltage Input Power Circuit Breaker Rating Conductor Size Max. Cord Length 4-10. Serial Number And Rating Label Location 4-11. Connecting 1-Phase Input Power For 240 VAC ! 1 ! 4-13. Installing Alternative Plug . 4-14. Cable Management Strap Page SECTION 5 OPERATION 5-1. Controls TEMP CUTS: 25 35 5-2. Mild Steel Recommended Cut Speed . Thickness Approximate Travel Speed* Inches Millimeters IPM mm/min 5-3. Trigger Safety Lock 5-4. Plasma Cutting System Practices . 5-5. Sequence Of Cutting Operation . 5-6. Sequence Of Cutting Using Stand-off Guide . Stand-off Guide Installation 5-7. Sequence Of Piercing Operation . SECTION 6 MAINTENANCE & TROUBLESHOOTING 6-1. Routine Maintenance ! . 6-2. Checking Or Replacing Filter Element ! 6-3. Status/Trouble Lights . VREWOP ERUSSERP PUC PMET Light Condition Status/Possible Cause 6-4. Checking Shield Cup Shutdown System . 6-5. Checking/Replacing Retaining Cup, Tip, And Electrode . ! . ! 6-6. Torch And Work Cable Connections ! . 6-7. Troubleshooting Power Source Trouble Remedy 6-8. Troubleshooting Torch Trouble Remedy Page Page SECTION 8 PARTS LIST 8-1. Recommended Spare Parts CAUTION HP-70CONSUMABLEKITS . Effective January 1, 2010 (Equipment with a serial number preface of MA or newer) Please complete and retain with your personal records. For Service Always provide Model Name and Serial/Style Number. Contact a DISTRIBUTOR or SERVICE AGENCY near you. Owners Record