Lincoln Electric IM939 RED-D-ARC LN-25 PRO EXTREME User Manual
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TABLE OF CONTENTS
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Installation.......................................................................................................................Section A
Technical Specifications .......................................................................................................A-1
Safety Precautions ...............................................................................................................A-2
Location ................................................................................................................................A-2
High Frequency Protection ...................................................................................................A-2
Weld cable Sizes ..................................................................................................................A-2
Cable Connections ...............................................................................................................A-3
Shielding Gas Connection ....................................................................................................A-3
Wire Drive Configuration ......................................................................................................A-4
Changing The Gun Receiver Bushing ................................................................................A-4
Procedure to Install Drive Rolls and Wire Guides ..............................................................A-4
Pressure Arm Adjustment ....................................................................................................A-5
Loading Spools of Wire ........................................................................................................A-5
Gun Connections..................................................................................................................A-5
Power Source to LN25 PRO EXTREME Cable Connection Diagrams ..................A-6 thru A-8
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Operation.........................................................................................................................Section B
Safety Precautions ...............................................................................................................B-1
Graphic Symbols that appear on this Machine or in this Manual .........................................B-1
Definition of Welding Terms .................................................................................................B-2
General Description..............................................................................................................B-2
Recommended Processes, Equipment Limitations, Recommended Power Sources ..........B-2
Case Front Controls ...............................................................................................B-3 thru B-5
Internal Controls ...................................................................................................................B-6
Internal Controls Decription ..................................................................................................B-7
Constant Current Wire Welding............................................................................................B-8
Rear Controls .......................................................................................................................B-9
Gas Purge Pushbutton .........................................................................................................B-9
Power-Up Sequence ............................................................................................................B-9
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Accessories ....................................................................................................................Section C
Factory Installed Equipment.................................................................................................C-1
Drive Roll Kits used ..............................................................................................................C-1
Accessories Used ..................................................................................................C-2 thru C-4
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Maintenance ....................................................................................................................Section D
Safety Precautions ...............................................................................................................D-1
Routine Maintenance ...........................................................................................................D-1
Periodic Maintenance...........................................................................................................D-1
Calibration Specification ................................................................................................D-1,D-2
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Troubleshooting .............................................................................................................Section E
How to Use Troubleshooting Guide .....................................................................................E-1
Digital Display Models Error Codes......................................................................................E-2
Troubleshooting Guide .................................................................................................E-3, E-4
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Wiring Diagram & Dimension Prints .............................................................................Section F
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Parts Pages ................................................................................................................P-562 Series
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