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TROUBLESHOOTING & REPAIR
MAIN TRANSFORMER TEST (continued)
FIGURE F.12 - MAIN TRANSFORMER LOCATION AND WIRING DETAILS
X5 X6
X1 |
|
X7 | X2 |
X3 |
|
| X4 |
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TEST PROCEDURE
1.Remove input power to the machine.
2.With the 5/16" nut driver, remove the machine top and sides.
3.Perform the power factor capacitor dis- charge procedure.
4.Inspect the input contactor, reconnect panel, and primary leads to the main trans- former for loose or faulty connections.
5.Check the reconnect panel to make sure that the single phase AC power supplied to the machine is properly connected.
6.Locate leads X1 though X7. See Figure F.12.
WARNING
ELECTRIC SHOCK can kill.
•With input power ON, there are high volt- ages inside the machine. Do not reach into the machine or touch any inter- nal part of the machine while power is on.
7. Turn on input power to the machine.
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SQUARE WAVE TIG 355
