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TM 9-2350-287-34
10-3. PERSONNEL AIR DUCT VENTILATING FAN REPAIR (continued).
b.
INSPECTION AND REPAIR
1.
Inspect impeller (3) for nicks and cracks. Replace if necessary.
2.
Using a multimeter, check noise filter (5) for continuity. If continuity does not exist between pins C (45) and
D (38) and between pins A (39) and B (40), replace noise filter (5).
3.
Using a multimeter, check noise filter (5) for continuity. If continuity does not exist between pin A (39) and
terminal (41), between pin B (40) and terminal (42), between pin C (45) and terminal (43), and between pin
D (40) and terminal (44), replace noise filter (5).
4.
Inspect fan assembly housing (9) for cracks. Replace if necessary.
5.
Inspect fan assembly housing (9) for cracks, bends, or signs of damage. Replace fan assembly housing (9)
if necessary.
6.
Inspect shaft key (4). Replace if damaged.
10-11
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