Lincoln Electric IM422 PRO-CUT 40 - Manual (Page 5)

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TABLE OF CONTENTS
Page
Safety Precautions .............................................................................................................2-4
Introductory Information .......................................................................................................6
Product Description..............................................................................................................7
Preheat Temperature for Plasma Cutting ............................................................................7
User Responsibility ..............................................................................................................7
Specifications.......................................................................................................................7
Installation ..........................................................................................................................8-1
Safety Precautions ........................................................................................................8
Location .........................................................................................................................8
High Frequency Interference Protection........................................................................8
Electrical Input Connection............................................................................................9
Electrical Installation for PRO-CUT 40....................................................................9
Capacitor Discharge Procedure ..............................................................................9
Input Voltage Setup ................................................................................................9
Power Cord Connection ..........................................................................................9
Air Input Connections.............................................................................................10
Output Connections......................................................................................................10
Torch Connection...................................................................................................10
Operating Instructions.........................................................................................................10
Sequence of events......................................................................................................10
Pilot Arc Discussion......................................................................................................11
Procedure Recommendations ......................................................................................11
General ..................................................................................................................11
Thin Gauge Sheet Metal ........................................................................................11
Expanded Metal .....................................................................................................11
Thick Sections of Metal ..........................................................................................12
In All Cases ............................................................................................................12
Suggestions for Extra Utility from the PRO-CUT System.............................................12
Maintenance Procedures ....................................................................................................13
Routine Maintenance....................................................................................................13
Periodic Maintenance ...................................................................................................13
Troubleshooting Procedures...............................................................................................14
Troubleshooting Guide .................................................................................................14
Troubleshooting Steps ........................................................................................15-18
Troubleshooting Tests .........................................................................................19-22
Switch P.C. Board Repairs .................................................................................................23
Switch P.C. Board Replacement Procedures...............................................................23
Replacement of Power Modules and Out put Diodes...................................................23
Environmental Protection .............................................................................................24
PRO-CUT 40 Status Lights Operating Modes ....................................................................24
Procedure for Replacing P.C. Boards.................................................................................25
Wiring Diagram PRO-CUT 40 .............................................................................................26
Parts Lists......................................................................................................................Appendix
PRO-CUT 40 Torch and Cable Figure 1 .......................................................................Appendix