Lincoln Electric POWER WAVE SVM156-A Service Manual page 99

F-53
AUXILIARY TRANSFORMER NO. 1 REMOVAL AND
REPLACEMENT PROCEDURE (CONTINUED)
FIGURE F.20 – AUXILIARY TRANSFORMER NO. 1 REMOVAL AND REPLACEMENT
X1
-
POWER BOARD
RECTIFIER BRIDGE
REMOVAL PROCEDURE
1. Remove input power to the Power Wave
455/R.
2. Using the 3/8" nut driver, remove the case
top, sides and input access panel.
3. Perform the Capacitor Discharge proce-
dure.
TROUBLESHOOTING & REPAIR
X3
X5
H1
CB4
FAN MOTOR
LEADS
+
X2
POWER WAVE 455/R
RECONNECT
TERMINALS
H2
H3
H4
H5
4. Using the 3/8" nut driver, remove the case
back.
5. Remove lead X4 from the input contactor
coil terminal.
F-53
INPUT
CONTACTOR
601
X4