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TABLE OF CONTENTS
Page
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Installation .......................................................................................................Section A
Technical Specifications ........................................................................................A-1
Safety Precautions.................................................................................................A-2
Uncrating the POWER MIG
®
256 ..........................................................................A-2
Location .................................................................................................................A-2
Input Power, Grounding and Connection Diagram ........................................A-2, A-3
Output Polarity Connections..................................................................................A-3
Gun and Cable Installation ....................................................................................A-3
Shielding Gas ........................................................................................................A-4
Auxiliary Power Receptacle...................................................................................A-4
Coil Claw™ Installation..........................................................................................A-4
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Operation .........................................................................................................Section B
Safety Precautions.................................................................................................B-1
Product Description ...............................................................................................B-2
Recommended Processes and Equipment ...........................................................B-2
Welding Capability.................................................................................................B-2
Limitations..............................................................................................................B-2
Description of Controls ..........................................................................................B-2
Wire Size Conversion Parts...................................................................................B-3
Procedure for Changing Drive Roll........................................................................B-3
Wire Reel Loading .................................................................................................B-4
Mounting of 10 to 44 lb. Spools .............................................................................B-4
To Start the Welder................................................................................................B-4
Feeding Electrode..................................................................................................B-5
Idle Roll Pressure Setting ......................................................................................B-5
Wire Drive Configuration....................................................................................... B-6
Making a Weld.......................................................................................................B-7
Avoiding Wire Feeding Problems ..........................................................................B-7
Fan Control............................................................................................................B-7
Input Line Voltage Protection.................................................................................B-7
Wire Feed Overload Protection .............................................................................B-7
Welding Thermal Overload Protection...................................................................B-8
Overcurrent Protection...........................................................................................B-8
Welding Procedure Information .............................................................................B-8
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Accessories.....................................................................................................Section C
Drive Roll Kits........................................................................................................C-1
Dual Cylinder Mounting Kit ...................................................................................C-1
Alternative Magnum GMAW Gun and Cable Assemblies .....................................C-1
Magnum Gun Connection Kit ...............................................................................C-1
Spool Gun..............................................................................................................C-1
Connecting the Spool Gun to the
POWER MIG
®
256 ....................................................C-2
Making a Weld with the Spool Gun .......................................................................C-2
Making a Weld with the Magnum SG Spool Gun ..................................................C-3
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