TM 9-2320-280-20-1 KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION NO YES NO YES ALTERNATOR 2-204           Change 1 B FROM 5, Page 2-198 B2 B3 STOP ENGINE. DISCONNECT WIRE 568A FROM ALTERNATOR WIRE 568. TURN THE ROTARY SWITCH TO "RUN". MEASURE VOLTAGE AT THE WIRE THAT IS NOT CONNECTED TO THE ALTERNATOR.  IS THERE BATTERY VOLTAGE? ALTERNATOR OUTPUT VOLTAGE IS NOT CORRECT 1. STE/ICE-R TEST 89 (Page 2-750) 2. MULTIMETER Wire 568a and 568 carry ignition current to turn on regulator. NOTIFY DS MAINTENANCE TO REPAIR  WIRE 568A OR REPLACE HARNESS ALTERNATOR OUTPUT   VOLTAGE IS NOT   CORRECT ALTERNATOR WIRING CONNECT WIRE 568A AND 568. TURN ROTARY SWITCH TO “RUN’’. MEASURE VOLTAGE AT ALTERNATOR END OF WIRE 568. IS THERE BATTERY VOLTAGE AT ALTERNATOR END OF WIRE 568? 1. STE/STE-R TEST 89      (PAGE 2-750) 2. MULTIMETER Wire 568A and 568 carry ignition current to turn on regulator. REPLACE WIRE 568 DIAGNOSTIC FLOWCHART TEST OPTIONS REASON FOR QUESTION NO YES B1 IDENTIFY MODEL ALTERNATOR. TESTING IS DIFFERENT FOR EACH MODEL. IS THIS A 60 AMP PRESTOLITE ALTERNATOR? VISUAL Connections and testing procedures are not the same for different model alternators. SEE NOTE ON OPPOSITE PAGE KNOWN INFO POSSIBLE PROBLEMS ALTERNATOR OUTPUT VOLTAGE IS NOT      CORRECT ALTERNATOR WIRING ALTERNATOR GO TO B4, Page 2-206