TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
Page 301 of 890
2-218 Change 2 TM 9-2320-280-20-1 ALTERNATOR DIAGNOSTIC FLOWCHART E1 TEST OPTIONS Visual REASON FOR QUESTION Must know model of alternator to perform proper tests. TEST OPTIONS STE/ICE-R Test 10 and 89 (page 2-734 and 2-750) REASON FOR QUESTION Determine if high or low output voltage. E2 NO YES SEE NOTE ON OPPOSITE PAGE IS THIS A NIEHOFF 200 AMP SINGLE VOLTAGE ALTERNATOR? START ENGINE AND ALLOW TO IDLE AT 1200 - 1500 RPM FOR 2 - 3 MINUTES. RECHECK VOLTAGE OUTPUT. IS ALTERNATOR OUTPUT LESS THAN 26 VOLTS? NO IF OUTPUT VOLTAGE IS OVER 30.5 VOLTS, REPLACE REGULATOR, (Para. 4-114) OR (Para. 4-115). KNOWN INFO VOLTAGE OUTPUT INCORRECT POSSIBLE PROBLEMS FUSIBLE LINK WIRING ALTERNATOR REGULATOR YES E FROM B1, Page 2-204 GO TO E3, Page 2-218.2