Input Rectifier - Lincoln Electric INVERTEC V350-PRO Service Manual

F-22
TEST PROCEDURE
1. Remove input power to the V350-PRO
machine.
2. Using a 5/16" nut driver, remove the case
wraparound cover.
3. Perform the
Procedure detailed earlier in this section.
4. Locate the input rectifier and associated
leads. See Figure F.3.
5. Carefully remove the silicone sealant
from leads 207, 207A, and 209.
Small Lead "H1"
To Auxiliary Transformer
TROUBLESHOOTING & REPAIR
INPUT RECTIFIER TEST (CONTINUED)
Capacitor Discharge
Figure F.3 Input Rectifier
3/16" ALLEN
BOLTS
C
B
A
V350-PRO
6. Using a phillips head screwdriver,
remove leads 207, 207A, and 209 from
the input rectifier.
7. Use the analog ohmmeter to perform the
tests detailed in Table F.2.
Wiring Diagram.
8. Visually inspect the three MOV'S for
damage (TP1,TP2,TP3). Replace if nec-
essary.
FRONT
REAR
See the
#207
#207A
#209
Small Lead "A"
To Circuit Breaker
F-22