Lincoln Electric IM923 RED-D-ARC LN-25 User Manual
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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-8
ACCESSORIES .....................................................................................................................................SECTION C
LN-25 Option Chart .........................................................................................................................................C-1
Options and Accessories ................................................................................................................................C-2
K430-2 Gas Solenoid Kit............................................................................................................................C-2
K434-1 Gas Flow Timer Kit .......................................................................................................................C-2
K460-1 Pulse Power Adapter Kit ..............................................................................................................C-3
K461 Pulse Power Control Cable Assembly ...........................................................................................C-3
K443-2, K443-3 LN-25 Contactor Kits ....................................................................................................C-3
Remote Output Control Options and Control Cable Assemblies..............................................................C-3
K431-1 Remote Output Control Kit...........................................................................................................C-3
K433-1 Power Source Remote Box .........................................................................................................C-4
K432 Remote Control Cable Assembly ...................................................................................................C-4
K439 Remote Extension Cable Assembly...............................................................................................C-4
K624-2 42V Remote Output Control Module ..........................................................................................C-4
K625, K626, K626 Remote Control Cable Assembly ............................................................................C-4
K444, K444-1 or K444-2 Remote Voltage Control Kit ...........................................................................C-5
K557-1 Rear Handle Kit .............................................................................................................................C-5
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 F
PHYSICAL DIMENSIONS.....................................................................................................................SECTION F
PARTS MANUAL ..............................................................................................................................P-553 SERIES
TABLE OF CONTENTS
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