TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 Change 1 6-44.15 6-5.2. 400 AMPERE DUAL VOLTAGE ALTERNATOR (12469057) TESTING AND REPAIR (Cont'd) Table 6-H. No-Load Test. AMPS 28VDC 14VDC DIAGNOSIS 322-400 21-25 10.5-12.5 Test bench battery is discharged (or defective). Allow to charge (or replace). 322-400 26-30 13-15 Give time to stabilize while monitoring VOLTS. If VOLTS rise above normal range (26-30 volts), regulator and/or tube assembly must be replaced. If AMPS fall, charging system is OK. 322-400 31-35 15.5-17.5 STOP TEST. Regulator and/or tube assembly must be replaced. Refer to static testing, task c. 160-238 21-25 10.5-12.5 Alternator and/or regulator must be repaired or replaced. Refer to table 6-K. 160-238 26-30 13-15 Regulator OK. Refer to table 6-I. 160-238 31-35 15.5-17.5 STOP TEST. Bench malfunction or wiring error.