Test Stand Shutdown - TM-9-2920-258-30-P0064

TM 9-2920-258-30&P

NOTE

Z The voltage has to be adjusted to 28 volts when any part of a load is added. Check the AC ammeter.

While watching the AC ammeter, rotate the phase select switch through A, B and C positions. There

should be no more than a 1-ampere difference between each phase.

Check the AC voltmeter. While watching the AC voltmeter, rotate the select switch through the T1, T2;

T1, T3; and T2, T3 positions. There should be no more than l-volt difference between each circuit.

10 Using a multimeter, place the red lead on terminal "ac" and ground the black lead. Check for 12-

16 volts AC.

11 If the Alternator meets the above requirements, it is serviceable.

Test Stand Shutdown

CAUTION

Do not turn master load switch OFF first as damage to equipment may result.

1 Turn the ignition switch OFF.

2 Turn the master load switch OFF.

3 Turn the battery switch OFF.

4 Reduce test stand speed to 1000 rpm.

5 Depress the STOP button.

6 Return all switches and controls to the base setting.

7 Remove the Alternator and regulator from the test stand.

8 Place all leads in the storage compartment of the test stand.

D-16