General Information
If the R250 Automatic Voltage Regulator (AVR) does not operate correctly, first check the switch setting on the R250 AVR. Refer to the System Operation, KENR9008, "Voltage Regulation" for information for setting the switch. If the setting is correct, use the following troubleshooting procedures to troubleshoot problems with the excitation system for the generator.
Caterpillar Information System:
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