Lincoln Electric INVERTEC SVM129-B Service Manual page 64

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A B
12
TEST PROCEDURE
1. Turn off the Invertec STT and disconnect
main AC input power to the machine.
2. Using the 5/16" nut driver, remove the case
wraparound cover.
3. Perform the
Discharge procedure.
Maintenance section.
WARNING
ELECTRIC SHOCK can kill.
TROUBLESHOOTING & REPAIR
INPUT RECTIFIER TEST (continued)
FIGURE F.9 - INPUT RECTIFIER LOCATION
C
Input Filter Capacitor
See the
• Before continuing with
the test procedure, per-
form the capacitor dis-
charge procedure to
avoid electric shock.
INVERTEC STT
INPUT
RECTIFIER
4. Locate the input rectifier. See Figure F.9.
5. Locate the leads needed to perform the
tests. See Figure F.9.
6. Use an ANALOG ohmmeter to perform the
tests shown in Table F.3.
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