Repair Manual Mobile Generator - Wacker Neuson
Repair Manual Mobile Generator - Wacker Neuson
Repair Manual Mobile Generator - Wacker Neuson
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Output Voltage Troubleshooting G 70<br />
8.7 Checking the Exciter Stator<br />
Prerequisites <strong>Generator</strong> shut down<br />
Procedure Follow the procedure below to check the exciter stator.<br />
1. Open the large hinged panel and locate the Automatic Voltage Regulator (AVR).<br />
2. Disconnect the blue and yellow wires from the AVR.<br />
3. Measure the continuity between the blue wire and ground. Also measure<br />
between the yellow wire and ground.<br />
Does each wire measure “OPEN” or “OL” to ground?<br />
Yes ____ No ____ Your reading<br />
Continue. Remove the vent cover from the generator and<br />
check the generator for damage.<br />
4. Measure the resistance across the blue and the yellow wires.<br />
Is 10.6–12.0 Ohms measured?<br />
Yes ____ No ____ Your reading<br />
Continue. Remove the vent cover from the generator and<br />
check the generator for damage; then continue.<br />
5. Remove the vent cover from the generator to expose the rotor.<br />
6. Measure the continuity between the blue wire and the rotor. Also measure<br />
between the yellow wire and the rotor.<br />
Does each wire measure “OPEN” or “OL” to the rotor?<br />
Yes ____ No ____ Your reading<br />
The exciter stator is OK. The exciter stator has failed.<br />
7. Reconnect the wiring, and re-install the vent cover.<br />
The exciter stator has now been checked.<br />
wc_tx000958gb.fm 74
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