TM 9-2320-280-20-1ALTERNATOR2-224.8 Change 1KNOWN INFOPOSSIBLE PROBLEMSVOLTAGE OUTPUT INCORRECTREGULATOR HAS ENERGIZINGVOLTAGEALTERNATORREGULATORWIRINGTEST OPTIONSREASON FOR QUESTIONMULTIMETERDetermine if high or low outputvoltage.DIAGNOSTIC FLOWCHARTFROM G23 Page 2-224.2NOIF OUTPUT VOLTAGE IS NOTCORRECT, REPLACE REGULATOR(Para 4-5.10). RECHECK VOLTAGE.IF VOLTAGE IS STILL NOTCORRECT, REPLACE ALTERNATOR(Para 4-5.7)KNOWN INFOPOSSIBLE PROBLEMSALTERNATORREGULATORVOLTAGE OUTPUT INCORRECTTEST OPTIONSREASON FOR QUESTION1. STE/ICE-R TEST 89 (Pages 2-750)2. MULTIMETERAs wire 568A is stubbed off, thevoltage from wire 5A on red terminalsignals regulator to turn on.G4IDLE ENGINE AT 1200-1500 RPM. DOESVOLTAGE ON 14 VOLT OUTPUTTERMINAL (YELLOW INSULATOR)MEASURE BETWEEN 13.4-14.6 VOLTS?G5TURN ROTARY SWITCH TO RUNPOSITION. CHECK FOR BATTERYVOLTAGE AT RED (ENERGIZED)TERMINAL ON REGULATOR. ISBATTERY VOLTAGE PRESENT?NONOTIFY DS MAINTENANCETO REPAIR OR REPLACEWIRING HARNESSYESYESREPLACE REGULATOR(Para 4-5.10). THEN GO TO 5, Page 2-198
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