Main Current Lem Removal And Replacement Procedure - Lincoln Electric FlexCut 200 Service Manual

LINCOLN ELECTRIC

MAIN CURRENT LEM 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
Two 7/16" Open End Wrenches
1/4" Nutdriver
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 plug J1 from the main current LEM. See Wiring Diagram.
5. Using two 7/16" open-end wrenches, remove the bolt, flat washer, lock washer and nut securing the
leads to the rear post of the electrode terminal. See Figure F.91. See Wiring Diagram.
6. Label and disconnect all leads from the rear post of the electrode terminal. See Wiring Diagram.
7. Using a 1/4" nutdriver, remove the screw and washer securing the main current LEM to the rear of
the electrode terminal. See Figure F.91.
8. The main current LEM
LEM for reassembly. See
REPLACEMENT PROCEDURE
1. Carefully position the new main current LEM into the machine. Ensure the proper orientation of the
main current LEM. See Figure F.92.
2. Using a 1/4" nutdriver, attach the screw and washer securing the main current LEM to the rear post
of the electrode terminal.
3. Connect all previously disconnected leads to the rear post of the electrode terminal. See Wiring
Diagram.
4. Using two 7/16" open-end wrenches, attach the bolt, flat washer, lock washer and nut securing the
leads to the rear of the electrode terminal. See Wiring Diagram.
5. Connect plug J1 to the main current LEM. See Wiring Diagram.
can now be removed and replaced. Note orientation of the main current
Figure F.92.
FlexCut® 200 Service Manual
Main Current LEM.
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