Lincoln Electric POWER WAVE 355M - Manual (Page 94)

TROUBLESHOOTING AND REPAIR F-48 F-48
POWER WAVE 355M/405M
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PROCEDURE
1. Remove input power to the POWER WAVE
355M/405M.
2. Using a 5/16” nut driver remove the case wrap-
around cover.
3. Perform the Input Filter Capacitor Discharge
Procedure detailed earlier in this section.
4. Locate the control board behind the front panel of
the machine. See Figure F.17.
5. Using a 5/16” nut driver remove the two screws
from the bottom of the front of the machine. See
Figure F.18.
CONTROL BOARD REMOVAL AND REPLACEMENT (continued)
ST STA ATUS TUS THERMAL THERMAL
_
+
Phillips Head
Screws
Phillips Head
Screws
5/16"
Mounting Screws
FIGURE F.17 - CONTROL BOARD LOCATION
FIGURE F.18 CASE FRONT SCREW REMOVAL
W AR NIN G
RE M OT E
PO W ER
OF F
ON
Control Board
ST AT US
TH ER M AL
LIN CO LN ELE CTR IC