TM 55-1520-240-23-7
9-149.1
TEST EMERGENCY HOOK RELEASE RELAY BOX (AVIM) (Continued)
9-149.1
28.
Turn power supply (9) off.
29.
Connect power supply (9) to receptacle (8) pin
D(+) and receptacle (7) pin C(-).
30.
Connect multimeter (5), set to dc between
receptacle (8) pin B(+) and receptacle (7) pin
C(-).
31.
Connect a jumper between pins A and B on
receptacle (7).
32.
Turn power supply (9) on.
33.
Momentarily apply +28 vdc to jumper on
receptacle (7). Multimeter shall indicate 28 vdc 8
to 12 seconds after 28 vdc has been removed
from receptacle (7) pins A and B.
INSPECT
34.
Turn power supply (9) off. Disconnect power
supply from receptacles (7 and 8).
35.
Disconnect multimeter (5) from receptacles (7
and 8).
9-610
Change 1