TM-9-2920-225-34 HMMWV Generator Direct Support & General Support Maintenance Manual Download
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TM 9-2920-225-34 1. 2. 3. 4. 5. 6. Turn on IGNITION switch (1) and note reading on DC LOAD AND STARTER AMMETER (2) . NOTE DC LOAD AND STARTER AMMETER will read according to the state of charge of test stand batteries. As batteries become charged, reading will drop. Let test stand run for about 5 minutes before going on with test. If DC LOAD AND STARTER AMMETER (2) reads over 10 amperes, turn on 25A and 0-25A switches on LOAD BANK (3). If DC LOAD AND STARTER AMMETER (2) reads under 10 amperes, turn on 50A and 0-25A switches on LOAD BANK ( 3). Set MASTER LOAD switch (4) to ON position. Turn LOAD CURRENT CONTROL (5) slowly to the right until DC LOAD AND STARTER AMMETER (2) reads 60 amperes. At this point, DC VOLTMETER (6) must read about 28 volts and DC FIELD AND STARTER AMMETER (7) must read one ampere or less. If DC FIELD AND BATTERY AMMETER (7) reads more than one ampere. generator is nonrepairable. . END OF TASK TA 103723 2-230