SAFETY ...............................................................................................................................................i-iv
INSTALLATION .......................................................................................................................SECTION A
Technical Specifications.....................................................................................................................A-1
Safety Precautions .............................................................................................................................A-2
Power Source Connections ................................................................................................................A-2
Weld Cable Connection......................................................................................................................A-4
Electrode Cable Connection ..........................................................................................................A-4
Work Cable Connection .................................................................................................................A-4
OPERATION ............................................................................................................................SECTION B
Safety Precautions .............................................................................................................................B-1
General Description............................................................................................................................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
ACCESSORIES........................................................................................................................SECTION C
LN-25 Option Chart............................................................................................................................C-1
Options and Accessories ...................................................................................................................C-2
K430-1 Gas Solenoid Kit ...............................................................................................................C-2
K434-1 Gas Flow Timer Kit............................................................................................................C-2
K443-1 LN-25 Contactor Kit...........................................................................................................C-3
K557-1 Rear Handle Kit.................................................................................................................C-5
MAINTENANCE .......................................................................................................................SECTION D
Safety Precautions .............................................................................................................................D-1
Routine Maintenance .........................................................................................................................D-1
TROUBLESHOOTING GUIDE .................................................................................................SECTION E
WIRING DIAGRAM...................................................................................................................SECTION F
PHYSICAL DIMENSIONS ........................................................................................................SECTION F
PARTS MANUAL ..................................................................................................................P175 SERIES
TABLE OF CONTENTS
LN-25