TM 9-2320-273-20
AUXILIARY AIR-POWERED COMPONENT SYSTEMS.
9-45. AIR HORN AND CONTROL VALVE MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
NOTE
Coat all threaded connections with liquid
teflon as you assemble.
14. Two gaskets (19),
Position on cab roof
M917 has only one horn.
gaskets (23), pedestals
and install with six screws
(20), rubber liners (21 ),
(22), washers (17), and
and horns (24).
and nuts (16).
15. Elbow (7).
Screw into horn (24) on
right hand side.
NOTE
Follow step 16. For M917 only.
16. Two cover plates (2),
Position on right hand cab
washers (25), and
roof and install with four
washers (26).
screws (1) and nuts (3).
17. Tee (4).
Screw into horn (24) on
left hand side.
18. Connector (5).
Screw into tee (4).
19. Plug (9).
Screw into tee (4).
20. Line (6).
Screw onto connector
(5) and elbow (7).
21. Horn inlet (8).
Screw into bottom of
tee (4).
22. Fitting (15).
Screw into valve (14).
23. Valve (14).
Screw onto horn inlet (8).
24. Supply line (18).
Screw onto fitting (15).
25. S-hook (13).
a. Hook thru hole in handle
of valve (14) and one end
of chain (12).
b. Clamp S-hook closed with
pliers.
M917 only.
9-202