Lincoln Electric POWER WAVE 355/405 SVM159-A Service Manual page 86

F-44
FAN CONTROL AND MOTOR TEST (continued)
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.
J21
5. Carefully apply the correct input power to the
machine.
Fan Lead
Lead 31B(C)
TROUBLESHOOTING AND REPAIR
FIGURE F.14 PLUG J22 LOCATION
FIGURE F.15 PLUG J22
1
3
Plug J22
POWER WAVE 355/405
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.
Figure F.14.
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.
Lead 32A
2
Fan Lead
4
F-44
See
J22
J20