Hobart Handler 190 Technical Manual

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 − SPECIFICATIONS 3..............................................................
2-1. Serial Number And Rating Label Location 3...........................................
2-2. Unit Specifications 3..............................................................
2-3. Duty Cycle And Overheating 3......................................................
2-4. Volt-Ampere Curves 4.............................................................
SECTION 3 − INSTALLATION 4................................................................
3-1. Installing Nozzle, Contact Tip, And Adapter 4.........................................
3-2. Installing Welding Gun 5...........................................................
3-3. Installing Work Clamp 6...........................................................
3-4. Process/Polarity Table 7...........................................................
3-5. Changing Polarity 7...............................................................
3-6. Installing Gas Supply 8............................................................
3-7. Serial Number And Rating Label Location 9...........................................
3-8. Selecting A Location 9.............................................................
3-9. Installing Wire Spool And Adjusting Hub Tension 10.....................................
3-10. Electrical Service Guide 11..........................................................
3-11. Connecting Input Power 12..........................................................
3-12. Connecting Optional Spool Gun 14...................................................
3-13. Threading Welding Wire 15..........................................................
SECTION 4 − OPERATION 16..................................................................
4-1. Controls 16.......................................................................
4-2. Weld Parameter Chart For 230 VAC Model 17..........................................
SECTION 5 − THEORY OF OPERATION 18.......................................................
SECTION 6 − TROUBLESHOOTING 20..........................................................
6-1. Troubleshooting Table 20...........................................................
6-2. Troubleshooting Circuit Diagram For Welding Power Source 22...........................
6-3. Control Board PC1 Testing Information 24.............................................
6-4. Control Board PC1 Test Point Values 25...............................................
SECTION 7 − MAINTENANCE 26................................................................
7-1. Routine Maintenance 26............................................................
7-2. Overload Protection 26.............................................................
7-3. Drive Motor Protection 26...........................................................
7-4. Changing Drive Roll Or Wire Inlet Guide 27............................................
7-5. Changing Nozzle, Contact Tip, Adapter And Liner, And Cleaning Gun Casing 28.............
7-6. Replacing Switch And/Or Head Tube 29...............................................
SECTION 8 − ELECTRICAL DIAGRAMS 31......................................................
SECTION 9 − PARTS LIST 40...................................................................
9-4. Optional Drive Rolls 45.............................................................
9-5. Options 45.......................................................................
9-6. Consumables 45..................................................................
Hobart is registered to
the ISO 9001 Quality
System Standard.

Hobart Handler 190 Specifications

General

Brand	Hobart
Model	Handler 190
Category	Welding System
Language	English