TM 55-1520-240-23-10
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TEST HEATER FAN (AVIM)
(Continued)
13-16
3.
Connect test setup to connector (7) of fan (3).
4.
Turn on power supply (8). Current shall be 8.1 to
8.9 amperes on each ammeter (9).
NOTE
Rotation direction of rotor is marked
on fan housing.
5.
Check that rotor (10) is turning in direction
marked on housing of fan (3).
6.
Measure rotational velocity of rotor (10). Velocity
shall be 11,400 to 11,800 rpm. Use stroboscope.
7.
Shut down power supply (8). Disconnect test
setup from connector (7).
8.
Remove two nuts (6), washers (5), and bolts (4)
from plate (1) and fan (3). Remove fan.
9.
Remove plate (1) from vise (2).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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