TROUBLESHOOTING & REPAIR
F-63 F-63
POWER WAVE 355
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9. Label and remove two thermostat leads and four
leads from the bus rectifier.
10. Using a 3/8” open end wrench, remove the three
DC Bus Board mounting nuts. See Figure F.29.
11. Replace the DC Bus Board.
12. Secure the new DC Bus Board in its proper loca-
tion using the 3/8” mounting nuts.
13. Reconnect previously removed leads to their prop-
er locations.
14. Replace the four phillips head screws mounting
the two welder output terminals to the front of the
machine.
15. Replace the two phillips head screws from above
and below the input power switch.
DC BUS BOARD REMOVAL AND REPLACEMENT (Continued)
