Lincoln Electric 11141 Service Manual page 96

F-50
CONTROL BOARD REMOVAL AND REPLACEMENT (continued)
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.
Phillips Head
Screws
TROUBLESHOOTING AND REPAIR
FIGURE F.18 - CONTROL BOARD LOCATION
S T
A T
U S
T H
E R
M A
L
W AR
NI
NG
RE
MO
TE
PO
W
ER
ON
OF
F
FIGURE F.19 – CASE FRONT SCREW REMOVAL
STA A TUS ST TUS
_
Mounting Screws
POWER WAVE
Control Board
® 4. Locate the control board behind the front panel of
the machine. See Figure F.18.
5. Using a 5/16" nut driver remove the two screws
from the bottom of the front of the machine. See
Figure F.19.
THERMAL THERMAL
+
5/16"
® 355M/405M
Phillips Head
Screws
F-50