Lincoln Electric 10372 Service Manual page 136

F-72
SWITCH BO RD
FIGURE F.21 — SWITCH BO RD
REMOV L PROCEDURE
NOTE: Observe all static electricity precau-
tions.
1. Remove input power to the Power
Wave 455.
2. Using the 3/8 in. nutdriver, remove the
case top and sides.
3. Perform the Capacitor Discharge
Procedure.
TROUBLESHOOTING ND REP IR
ND FILTER C P CITOR REMOV L
ND REPL CEMENT ( ontinued)
ND FILTER C P CITOR REMOV L
13/14
OR
17/18
POWER W VE 455/POWER FEED 10
ND REPL CEMENT.
11/12
OR
15/16
19+
20-
NYLON
SCREW
(2X)
4. Remove the molex plug from the top of
the switch board. Refer to Figure F.21.
5. Using the 7/16 in. wrench, remove
leads 11/12 or 15/16 from the switch
board.
6. Using the 7/16 in. wrench, remove
leads 13/14 or 17/18 from the switch
board.
7. Using the 7/16 in. wrench, remove
leads 19+ and 20- from the switch
board capacitor connection bolts.
F-72
MOUNTING
SCREW (4X)
MOLEX PLUG
SWITCH
BOARD