10-2. AIR HORN ASSEMBLY MAINTENANCE (CONT)
I f h o r n r e p a i r k i t i s b e i n g i n s t a l l e d , d i s c a r d s c r e w s ( 5 ) . T h e s e a re
supplied with horn repair kit.
a. Visually inspect diaphragm (8) for damage. If diaphragm is damaged, install
h o r n r e p a i r k i t .
b. Inspect cover (6) and long and short horns (9 and 10) for dents, cracks,
b r e a k s,
or other damage. Replace as necessary.
c. Inspect body (11) for cracks, breaks, or damaged threads on port. If port ex-
ternal threads are damaged, chase using 5/8-18NF die.
a. Install and tighten long and short
horns (9 and 10) in body (11).
b. Install diaphragm (8), new gasket (7),
and cover (6).
C . Install and tighten three new screws
( 5 ).
d. Position gasket (4) on body (11).
e. Install and tighten washer (3), lock
washer (2), and nut (1).