Hobart Handler 140 - Default Chapter; Table of Contents

TABLE OF CONTENTS
SECTION 1 − SAFETY PRECAUTIONS FOR SERVICING 1........................................
1-1. Symbol Usage 1.................................................................
1-2. Servicing Hazards 1..............................................................
1-3. California Proposition 65 Warnings 2.................................................
1-4. EMF Information 2................................................................
SECTION 2 − DEFINITIONS 3..................................................................
2-1. Miscellaneous Symbols And Definitions 3............................................
SECTION 3 − SPECIFICATIONS 3..............................................................
3-1. Serial Number And Rating Label Location 3...........................................
3-2. Specifications 3..................................................................
3-3. Duty Cycle And Overheating 4......................................................
3-4. Volt-Ampere Curves 4.............................................................
SECTION 4 − INSTALLATION 5................................................................
4-1. Selecting A Location 5.............................................................
4-2. Installing Welding Gun 6...........................................................
4-3. Installing Work Clamp 6...........................................................
4-4. Process/Polarity Table 7...........................................................
4-5. Changing Polarity 7...............................................................
4-6. Installing Gas Supply 8............................................................
4-7. Connecting Input Power 9..........................................................
4-9. Installing Wire Spool And Adjusting Hub Tension 10.....................................
4-10. Installing Contact Tip And Nozzle 11..................................................
4-11. Threading Welding Wire 12..........................................................
SECTION 5 − OPERATION 14..................................................................
5-1. Controls 14.......................................................................
5-2. Weld Parameter Chart 15...........................................................
SECTION 6 − THEORY OF OPERATION 16.......................................................
SECTION 7 − TROUBLESHOOTING 18..........................................................
7-1. Troubleshooting Table 18...........................................................
7-2. Troubleshooting Circuit Diagram For Welding Power Source 20...........................
7-3. Control Board PC1 Testing Information (Use With Section 7-4) 22.........................
7-4. Control Board PC1 Test Point Values 23...............................................
SECTION 8 − MAINTENANCE 24................................................................
8-1. Routine Maintenance 24............................................................
8-2. Overload Protection 24.............................................................
8-3. Drive Motor Protection 24...........................................................
8-4. Changing Drive Roll Or Wire Inlet Guide 25............................................
8-5. Replacing Gun Contact Tip 25.......................................................
8-6. Cleaning Or Replacing Gun Liner 26..................................................
8-7. Replacing Switch And/Or Head Tube 27...............................................
SECTION 9 − ELECTRICAL DIAGRAMS 29......................................................
SECTION 10 − PARTS LIST 38..................................................................
SECTION 11 − ACCESSORIES AND CONSUMABLES 42..........................................
Hobart is registered to
the ISO 9001 Quality
System Standard.