TM 5-3805-262-20
10-8. CAB DEFOGGER FANS MAINTENANCE (CONT)
CLEANING
a. Clean guard (1) and rear guard (6) using detergent. Rinse in clean water and
dry using clean cloth.
b .
c .
Dry cleaning solvent P-D-680 used to clean parts is toxic and flammable.
W e a r p r o t e c t i v e g o g g l e s a n d g l o v e s a n d u s e o n l y i n a
a r e a . A v o i d c o n t a c t w i t h s k i n , e y e s a n d c l o t h e s a n d
v a p o r s . D o n o t u s e n e a r o p e n f l a m e o r e x c e s s i v e h e a t
w h e n u s i n g i t . F a i l u r e t o d o s o c o u l d c a u s e s e r i o us
b e c o m e d i z z y w h i l e u s i n g c l e a n i n g s o l v e n t , g e t f r e sh
a t t e n t i o n i m m e d i a t e l y . I f c o n t a c t w i t h s k i n o r c l o t h e s
w i t h l a r g e a m o u n t s o f w a t e r . I f c o n t a c t w i t h e y e s i s
with water and get medical aid immediately.
w e l l v e n t i l a t ed
d o n ' t b r e a t h e
and don’t smoke
i n j u r y . I f y o u
air and medical
i s m a d e , f l u sh
made, wash eyes
Clean fan blade (3) and pedestal (13) using clean cloth moistened with clean-
ing solvent P-D-680. Dry using clean cloth.
Clean switch (11) and motor (12) using clean cloth moistened with isopropyl
alcohol; dry using clean cloth.
INSPECTION
a . Inspect guard (1) and rear guard (6) for cracks, breaks, broken tabs, or other
damage. Replace if any of these conditions are seen.
b .
c .
d .
e .
Inspect fan blade (3) for bent or missing blades; replace if necessary .
Inspect fan motor (12) and pedestal (13) for cracks, breaks, or other damage.
Replace if necessary. Check fan motor wires for cracked or broken insulation.
Repair cracked or broken insulation by applying insulation tape to area. Con-
nect multimeter between fan motor terminals and check that multimeter indi-
cates continuity. If multimeter does not indicate continuity, replace fan
motor.
Inspect switch (11) for cracked or broken molded body insulation, or loose
t e r m i n a l s;
replace if any of these conditions are seen. Using multimeter,
check that continuity is obtained between center terminal and end terminals of
switch when switch is activated and that multimeter indicates an open circuit
when switch is in center position. Replace switch if any of these indications
are not obtained.
Inspect remaining parts for cracks, breaks, deformation, distortion, or damag-
ed threads. Replace if any of these conditions are observed.
REASSEMBLY (SHEET 1 OF 2)
a. Assemble fan motor (12) and pedestal (13) by routing fan motor wires down
through pedestal. Grasp both one in one hand and the other in your other hand
and aline ball on motor with pedestal socket and firmly press both together
u n t i l t h e y s n a p i n t o p o s i t i o n.
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