Lincoln Electric IM666 TANDEM MIG Torch G3494-2A, 3A, 4A, 5A, 6A User Manual
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TABLE OF CONTENTS
Page
Installation.......................................................................................................................Section A
Technical Specifications .......................................................................................................A-1
General Description..............................................................................................................A-2
Design Summary ..................................................................................................................A-2
Case Assembly ....................................................................................................................A-3
Consumables .......................................................................................................................A-3
Mounting Brackets................................................................................................................A-3
Liner Installation and Trimming Instructions .........................................................................A-4
Contact Tip and Gas Nozzle Installation ..............................................................................A-4
Connecting the Torch to the Welding Equipment .................................................................A-4
Water Cooling Equipment ....................................................................................................A-5
Mounting the Torch ..............................................................................................................A-6
Work Leads ..........................................................................................................................A-7
Seam Tracking .....................................................................................................................A-7
Welding with Multiple Tandem MIG Systems .......................................................................A-7
Wire Straighteners................................................................................................................A-7
Tail Gas Coverage ...............................................................................................................A-7
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Operation.........................................................................................................................Section B
Electrodes and Equipment ...................................................................................................B-1
Making a Weld......................................................................................................................B-1
Avoiding Wire Feeding Problems .........................................................................................B-1
Shielding Gas Delivery .........................................................................................................B-1
Air Blast Cleaning .................................................................................................................B-1
Nozzle Reaming Stations .....................................................................................................B-1
Anti-Spatter Spray ................................................................................................................B-1
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Accessories .....................................................................................................Section C
General Options / Accessories ..............................................................................C-1
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Maintenance ....................................................................................................Section D
Safety Precautions ................................................................................................D-1
Maintenance ..........................................................................................................D-1
Torch Shield Replacement ....................................................................................D-1
Contact Tip Replacement ......................................................................................D-2
Liner Replacement ................................................................................................D-2
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Troubleshooting ..............................................................................................Section E
Safety Precautions.................................................................................................E-1
How to Use Troubleshooting Guide.......................................................................E-1
Troubleshooting Guide...................................................................................E-2, E-3
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Parts List ..............................................................................................................P210-P
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