Power Conversion Board Assembly Location - Lincoln Electric POWER WAVE S500 Service Manual

F-96
POWER CONVERSION BOARD ASSEMBLY
REMOVAL AND REPLACEMENT PROCEDURE (continued)
FIGURE F.37 – POWER CONVERSION BOARD ASSEMBLY LOCATION
AIR BAFFLE
REMOVAL PROCEDURE
WARNING
ELECTRIC SHOCK
• Do not touch electrically live
parts or electrodes with your
skin or wet clothing.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
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1. Remove the input voltage from the Power
Wave S500 machine.
®
2. Perform the Case Cover Removal and
Capacitor Discharge Procedure.
TROUBLESHOOTING AND REPAIR
can kill.
POWER WAVE
POWER CONVERSION
BOARD ASSEMBLY
3. Locate the Power Conversion Board Assembly.
See Figure F.37.
4. Using a 5/16" and 3/8" nutdrivers, remove the
air baffle. See Figure F.37.
5. Label and remove plugs J32, J33, J34, J35, J36
and J37 from the Power Conversion Board.
See Figure F.38. See Wiring Diagram.
6. Using a 7/16" wrench, label and remove the
heavy lead B2 from terminal B56. See Figure
F.38. See Wiring Diagram. Save the bolt and
washer for reassembly.
placement on terminal B56.
7. Using a 7/16" wrench, label and remove the
heavy leads 901C and 901A from the heat sink
terminal. Save the bolt, washers and nut for
reassembly. See Figure F.38.
Diagram.
® S500
F-96
Note chokesʼ lead
See Wiring