TM 9-2320-269-20-2
AIR HORN - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
REMOVAL- CONTINUED
9.
Nipple (1)
Elbow (2)
Using 5/8-inch wrench, unscrew and
take off.
10.
Horn (3) to
Three screws (5)
Have assistant use 7/16-inch wrench,
cab (4)
to hold.
11.
Three screws (5)
Three nuts (6) and
Using 7/16-inch socket and handle,
reinforcement (7)
unscrew and take off.
12.
Horn (3) and
Three screws (5)
Have assistant take out.
cab (4)
13.
Gasket (8)
Horn (3)
Have assistant take off.
14.
Cab roof (4)
Gasket (8)
a. Have assistant take off.
b. Get rid of.
15.
Horn (3)
Nipple (1)
a. Using pipe wrench, unscrew and
take off.
b. Using wire brush, clean threads.
REPAIR
NOTE
Air horn is repaired by replacing damaged bell. Bells may be replaced either with horn
installed or removed. On truck, long bell is supported by pedestal, short bell is not.
Otherwise, steps are the same for both long and short bell, on or off truck. Long bell,
used as the example.
16.
Bell clamp (9)
Two screws (10)
Using flat-tip screwdriver, unscrew
to horn (3)
and take out.
17.
Horn (3)
Bell clamp (9)
Take off.
18.
Horn (3) and
Bell (12)
Pull out.
pedestal (11)
19.
Bell (12)
Making sure grommet (13) is in place,
push bell into place in horn (3) and
pedestal (11).
2-1326
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