TM 9-4120-408-14
5-18. EVAPORATOR FAN ASSEMBLY MAINTENANCE. (Continued)
d.
Repair
(1) Inspect evaporator fan housing (5) and impeller (14) for bends, breaks and other physical damage that
may impair fan operation. Ensure impeller (14) rotates freely within evaporator fan housing (5) and is free
of debris and dirt.
(3) Inspect all mounting hardware for damage.
(4) Replace all damaged or defective components.
e.
Assemble.
(1) Install impeller (14) in evaporator fan housing (5).
NOTE
Short screws secure panel from inside of evaporator fan housing.
(2) Install plate (13) in evaporator fan housing (5) and secure with four screws (12).
(3) Apply adhesive to evaporator fan motor (6) mounting surface and position evaporator fan motor (6) in
evaporator fan mounting bracket (11). Secure evaporator fan motor (6) with two screws (10), four flat
washers (9), two new lock washers (8), and nuts (7).
CAUTION
Ensure bushing is installed on motor drive shaft. Do not use bushing from another motor. Failure to obey
this caution may result in equipment damage.
(4)
Slide evaporator fan motor (6) into impeller (14) and secure evaporator fan mounting bracket (11) to
evaporator fan housing (5) with three flat washers (4), new lock washers (3), and -crew" (2).
CAUTION
Ensure impeller is centered between interior surfaces of fan housing and spins freely. Failure to obey this
caution may result in equipment damage.
(5) Tighten set screw (1).
f.
Install.
(1) Refer to tags and install wires in connector A106J1 (Figure 5-13, 14) positions E, F, R, and L.. Remove
sleeving on connector A106J1 (14).
(2) Position evaporator fan assembly (15) in evaporator housing (16) and secure with three screws (13), flat
washers (12), new lock washers (11), nuts (10), eight flat washers (7), new lock washers (6), and screws
(5).
5-43