Troubleshooting & repair, Stator voltage test (continued) – Lincoln Electric COMMANDER SVM153-A User Manual
Page 91
TROUBLESHOOTING & REPAIR
F-38
F-38
COMMANDER 500
WELD WINDING
LEAD CONNECTIONS
W6
W2
W4
W1
W3
W5
FIGURE F.16 – OUTPUT RECTIFIER DIODE BRIDGE
STATOR VOLTAGE TEST (CONTINUED)
4. Locate the weld winding leads connected to
the three-phase output rectifier diode bridge.
See Figure F.16.
5. Check for approximately 68VAC from W1 to
W2. Also check from W3 to W4 and from
W5 to W6.
6. If any of these voltages are low or missing
perform the Flashing and Rotor Voltage
Test and also the Rotor Resistance Test.
7. Also check leads #6F and #5P for loose or
faulty connections to the field bridge. See
the Wiring Diagram.
8. If the tests in Steps 6 and 7 are OK and the
stator voltages are low or missing, the stator
may be faulty.
9. Replace the lower front panel and output
leads.
10. Replace the upper control panel and
secure.
11. Replace the front left and right case sides.