Lincoln Electric POWER WAVE SVM135-B Service Manual page 96

F-32
TEST PROCEDURE
1. Remove input power to the Power
Wave 455.
2. Using the 3/8 in. nutdriver, remove the
case top.
3. Perform the Capacitor Discharge
Procedure.
4. Locate the Input Rectifier and lead
locations. Refer to Figure F.5.
TROUBLESHOOTING AND REPAIR
INPUT RECTIFIER TEST (continued)
FIGURE F.5 — INPUT RECTIFIER TEST.
POWER WAVE 455/POWER FEED 10
INPUT
RECTIFIER
C
B
A
NOTE: Some RTV sealant may have to be
removed from the input rectifier terminals.
The RTV should be replaced when test is
complete.
5. With the Phillips head screwdriver
remove the positive and negative leads
from the rectifier.
6. Use the analog ohmmeter to perform
the tests detailed in Table F.2.
F-32
NEG (-)
POS (+)