TM 55-1520-240-23-7
9-99.3
TEST EMERGENCY POWER PANEL (AVIM)
(Continued)
9-99.3
NO. 1 ENGINE
1.
Apply 115 vac to pin 9 and ground to pin 22 of
receptacle (1). Timer (2) shall not operate.
2.
Apply 28 vdc to pin 24 and ground to pin 23 of
receptacle (1). Indicator (3) shall turn black.
3.
Remove 28 vdc from pin 24 only. Indicator (3)
shall stay black. Apply 28 vdc to pin 25.
4.
Apply 28 vdc to pin 11 and ground to pin 13 of
receptacle (1). After 5 seconds indicator (3)
shall become striped and timer (2) shall operate.
5.
Remove 28 vdc from pin 25 only. Indicator (3)
shall stay striped. Momentarily apply 28 vdc to
pin 24. Indicator shall turn black and stay black.
6.
Remove all power connections.
NO. 2 ENGINE
7.
Apply 115 vac to pin 5 and ground to pin 17 of
receptacle (1). Timer (4) shall not operate.
8.
Apply 28 vdc to pin 15 and ground to pin 16 of
receptacle (1). Indicator (5) shall turn black.
9.
Remove 28 vdc from pin 15 only. Indicator (5)
shall stay black. Apply 28 vdc to pin 14.
10.
Apply 28 vdc to pin 3 and ground to pin 1 of
receptacle (1). After 5 seconds indicator (5)
shall become striped and timer (4) shall operate.
11.
Remove 28 vdc from pin 14 only. Indicator (5)
shall stay striped. Momentarily apply 28 vdc to
pin 15. Indicator shall turn black and stay black.
12.
Remove all power connections.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
9-370
