TM 5-3805-262-20
INSTALLATION (SHEET 3 OF 3)
e. Position air horn valve assembly (18) against front chassis floor plate.
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Tell assistant in cab to install capscrews (17) and hold using socket wrench.
Install and tighten two lock washers (16) and nuts (15) to secure air horn
valve assembly (18).
If necessary, install elbow (14) in air horn port.
Install fitting (11) in outlet port of air horn valve assembly (18).
Route tube (10) between air horn and air horn valve assembly.
If necessary, install nuts (12 and 8) and compression sleeves (13 and 9) on
tube (10) .
Connect tube (10) to elbow (14) ensuring that compression sleeve (13) is posi-
tioned on end of tube (10) and installed in elbow (14); tighten nut (12) se-
c u r e l y.
Connect other end of tube (10) to fitting (11) ensuring that compression
sleeve (9) is positioned on end of tube (10) and installed in fitting (11);
tighten nut (8) securely.
I f n e c e s s a r y , i n s t a l l f i t t i n g ( 7 ).
Install elbow (4) in input port of air horn valve assembly (18).
Route tube (3) between pressure reducing valve and air horn valve assembly.
If necessary, install nuts (5 and 1) and compression sleeves (6 and 2) on tube
( 3 ).
Connect tube (3) to fitting (7) ensuring that compression sleeve (6) is posi-
tioned on end of tube (3) and installed in fitting (7); tighten nut (5) se-
c u r e l y .
Connect other end of tube (3) to elbow (4) ensuring that compression sleeve
(2) is positioned on end of tube (3) and installed in elbow (4); tighten nut
( 1 ) s e c u r e l y .
Reposition floor mat over air horn valve assembly mounting capscrews ensuring
that valve button is positioned through hole in floor mat.
Close air reservoir drain valve, close and lock front access door, start en-
gine, and allow air system to build up air pressure until low air pressure
buzzer stops sounding. Turn off engine.
10-7
