Lincoln Electric POWER WAVE 355/405 SVM159-A - Manual (Page 86)

TROUBLESHOOTING AND REPAIR
FAN CONTROL AND MOTOR TEST (continued)
F-44 F-44
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TEST PROCEDURE
1. Remove the input power to the POWER WAVE
355/405 machine.
2. Using the 5/16” nut driver, remove the case
wraparound cover.
3. Perform the Input Filter Capacitor Discharge
Procedure.
4. Locate plug J22 on the main switch board. Do
not remove the plug from the board. See
Figure F.14.
5. Carefully apply the correct input power to the
machine. 6. Carefully check for 115VAC at plug J22 pin-2
to J22 pin-3. (leads 32A to 31B(C) See Figure
F.15. WARNING: HIGH VOLTAGE IS PRE-
SENT AT THE MAIN SWITCH BOARD.
J21 J20
J22
Plug J22
Fan Lead
1 2
3 4 Lead 31B(C)
Lead 32A
Fan Lead
FIGURE F.15 PLUG J22
FIGURE F.14 PLUG J22 LOCATION