TM 55-1520-240-23-10
13-13
DISASSEMBLE HEATER FAN (500702-5310) (AVIM)
(Continued)
13-13
6.
Remove rotor (8). If rotor is tight, lift fan (1) by
rotor and tap shaft (9). Use plastic-face hammer.
NOTE
Spun nose and rotor are a matched
set. If one is damaged, both must be
replaced.
6.1.
Inspect rotor (8). There shall be no cracks or
nicks.
6.2.
Measure bore (9.1) in rotor (8). Diameter shall
not be more than 0.501 inch.
6.3.
Measure width of keyway (9.2). Width shall not
be more than 0.128 inch.
NOTE
Rotor is magnesium.
6.4.
Inspect rotor (8) for eroded finish. Touch up as
needed. Use epoxy primer (E292.1) and poly
paint (E285.2) (Task 2-350.1). Wear gloves
(E184.1).
7.
Remove key (10).
8.
Remove lockwire, four screws (11), and washer
(12). Pull receptacle (13) and block (14) away
from housing (15) far enough to access wires.
9.
Remove tubing (17). Tag and unsolder four wires
(16). Use tags (E264).
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