Pilot Board Removal And Replacement Procedure - Lincoln Electric FlexCut 200 Service Manual

LINCOLN ELECTRIC

PILOT BOARD REMOVAL AND REPLACEMENT PROCEDURE

Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized
repairs performed on this equipment may result in danger to the technician or machine operator and will
invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety
notes and precautions detailed throughout this manual. If for any reason you do not understand the test
procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department
for electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.
TEST DESCRIPTION
This procedure will aid the technician in the removal and replacement of the
MATERIALS NEEDED
Phillips Screwdriver
Wiring Diagram
REMOVAL PROCEDURE
1. Carefully remove input power from the FlexCut 200 machine.
2. Perform the Case Cover Removal Procedure.
3. Perform the Capacitor Discharge Procedure.
4. Label and disconnect plugs J1, J3 and J5 from the pilot board. See Figure F.89. See Wiring Diagram.
5. Label and disconnect leads from terminals B3, B4, B10, B11 and B13 from the pilot board. See
Figure F.89. See Wiring Diagram.
6. Using a Phillips screwdriver, remove the four screws, lock washers and flat washers securing the
pilot board to the isotop IGBT. See Figure F.90.
7. Using a Phillips screwdriver, remove the two screws and washers securing the pilot board to the
machine. See Figure F.90.
8. The pilot board
REPLACEMENT PROCEDURE
1. Carefully position the new pilot board into the machine.
2. Using a Phillips screwdriver, attach the two screws and washers securing the pilot board to the
machine.
3. Using a Phillips screwdriver, attach the four screws, lock washers and flat washers securing the pilot
board to the isotop IGBT.
4. Connect previously disconnected leads to terminals B3, B4, B10, B11 and B13 on the pilot board.
See Wiring Diagram.
5. Connect plugs J1, J3 and J5 to the pilot board. See Wiring Diagram.
6. Perform the Case Cover Replacement
7. Perform the Retest After Repair Procedure.
can now be removed and replaced.
Procedure.
FlexCut® 200 Service Manual
Pilot Board.
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