TM 5-3805-262-20
10-1. AIR HORN VALVE ASSEMBLY MAINTENANCE (CONT)
DISASSEMBLY
a. Unscrew and remove cap (1).
b. Remove strainer (2) and spring (3).
c. Remove cotter pin (4) then remove button (5).
d. Push stem (6) into body (9) and remove stem from body.
e. Remove spring seat (7) and inlet valve (8) from stem (6).
CLEANING
a .
b .
c .
d .
e .
f .
10-4
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 w e l l v e n t i l a t e d
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 d o n ’ t b r e a t h e
vapors. Do not use near open flame or excessive heat and don’t smoke
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 u s i n j u r y . I f y ou
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 s h a i r a n d m e d i c al
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 i s m a d e , f l u sh
w i t h l a r g e a m o u n t s o f w a t e r .
If contact with eyes is made, wash eyes
with water and get medical aid immediately.
Clean all metallic parts using clean cloth moistened with cleaning solvent
P-D-680. Dry using clean cloth.
Clean all rubber parts using clean cloth moistened with detergent. Dry using
c l e a n c l o t h .
Inspect body (9) for cracks, breaks, or chips. Replace if necessary.
Inspect spring seat (7) and inlet valve (8) for indications of wear or damage;
r e p l a c e i f n e c e s s a r y.
Install stem (6) in body (9) and check that stem moves freely without stick-
ing; replace stem if it does not move freely.
Check spring (3) for cracks, breaks, signs of permanent set, or deformation;
replace as necessary.
