Lincoln Electric IM677 RED-D-ARC LN-25 - Manual (Page 7)

SAFETY ...............................................................................................................................................i-iv
INSTALLATION .......................................................................................................................SECTION A
Technical Specifications .....................................................................................................................A-1
Safety Precautions .............................................................................................................................A-2
Power Source Connections ................................................................................................................A-2
Gun Cable Connection to Feeder ......................................................................................................A-3
Weld Cable Connection......................................................................................................................A-4
Electrode Cable Connection ..........................................................................................................A-4
Work Cable Connection .................................................................................................................A-4
Wire Feed Drive Roll and Guide Tube Kits ........................................................................................A-4
OPERATION ............................................................................................................................SECTION B
Safety Precautions .............................................................................................................................B-1
General Description............................................................................................................................B-1
Recommended Processes and Equipment ........................................................................................B-1
Welding Capability .............................................................................................................................B-1
Controls and Settings .........................................................................................................................B-2
Sequence of Operation ......................................................................................................................B-4
Loading Electrode ..........................................................................................................................B-4
Loading Wire Drive ........................................................................................................................B-5
Idle Roll Pressure Setting ..............................................................................................................B-5
Presetting Wire Feed Speed ..........................................................................................................B-6
Making a Weld ...............................................................................................................................B-7
Procedure at End of Coil....................................................................................................................B-8
Automatic Protection Shutdown .........................................................................................................B-9
ACCESSORIES........................................................................................................................SECTION C
LN-25 Option Chart ............................................................................................................................C-1
Options and Accessories ...................................................................................................................C-1
K430-2 Gas Solenoid Kit ...............................................................................................................C-1
K443-2 LN-25 Contactor Kit...........................................................................................................C-1
K557-1 Rear Handle Kit .................................................................................................................C-1
Gun Cable Connector Requirements .............................................................................................C-2
MAINTENANCE .......................................................................................................................SECTION D
Safety Precautions .............................................................................................................................D-1
Routine Maintenance .........................................................................................................................D-1
Circuit Protection and Automatic Shutdown .......................................................................................D-1
Adjusting Speed Sensor Module ........................................................................................................D-1
Calibration of the LN-25 Wire Speed Dial ..........................................................................................D-2
TROUBLESHOOTING GUIDE .................................................................................................SECTION E
How to Use the Troubleshooting Guide .............................................................................................E-1
Troubleshooting Guide .......................................................................................................................E-2
WIRING DIAGRAM ..........................................................................................................SECTION F1,F-2
PHYSICAL DIMENSIONS ......................................................................................................SECTION F3
PARTS MANUAL ..................................................................................................................P374 SERIES
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