FRAME 2 - TM-9-2920-225-340246

TM 9-2920-225-34

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.

2. If DC LOAD AND STARTER AMMETER (2) reads over 10 amperes, turn on

25A and 0-25A switches on LOAD BANK (3).

3. If DC LOAD AND STARTER AMMETER (2) reads under 10 amperes, turn on

50A and 0-25A switches on LOAD BANK ( 3).

4. Set MASTER LOAD switch (4) to ON position.

5. 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.

6. If DC FIELD AND BATTERY AMMETER (7) reads more than one ampere.

generator is nonrepairable.

END OF TASK

TA 103723

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