Lincoln Electric INVERTEC SVM129-B Service Manual page 88

F-50
PLUG
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. See the Maintenance
section.
TROUBLESHOOTING & REPAIR
TRIGGER CIRCUIT TEST (continued)
FIGURE F.19 – PLUG J31 LOCATION
J31
Input Filter Capacitor
INVERTEC STT
WARNING
ELECTRIC SHOCK can kill.
• Before continuing with the
test procedure, perform
the capacitor discharge
procedure to avoid electric
shock.
4. Locate plug J31 at the left side of the
machine. See Figure F.19.
F-50