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 TM 55-1905-223-24-17
b. Disconnect vane section (16) from fan housing (24) by removing plain hexnut, lockwashers and flat
washer (9) and hexhead screw and flat washer (4).
c.
Remove hub cover mounting screws (8) and remove hub cover (7).
d. Remove bushing retaining screws and lockwashers (5, 6).
e. Use a puller and remove fan hub (23).
REPAIR
Repair consists of replacing the axial fan impeller (22).
ASSEMBLY
a. Press the fan hub (23) onto motor shaft.
b. Install bushing retaining screws and lockwashers (6, 5).
c.
Install hub cover (7) with hub cover mounting screws (8).
d. Connect vane section (16), to fan housing (24), connecting plain hexnut, lockwasher, and flat washer
(9) to hexhead screw and flat washer (4).
e. Connect outlet cone (15), to vane section (16), by connecting plain hexnut, lockwasher, and flat
washer (11) to hexhead screw and flat washer (10).
REPLACEMENT
NOTE
Fans should always be mounted to flat, level, and rigid structure. Shim the fan
where necessary. This will ensure permanent alignment and smooth-running and
vibration-free fan.
a. Position fan (1) and connect fan to bell inlet (26) and companion flange (14), and connect fan to
deck mounting feet (25) by installing plain hexnuts, lockwashers, and flat washers (2 and 13) and
hexhead screws and flat washers (3 and 12).
b. Connect electrical wiring to fan.
c.
Operational Check:
(1) Turn electrical power ON.
(2) Start and run fan to check operation.
(3) Remove "Out of Service" tag from circuit.
4-20
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