TM-9-2320-273-20

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE

NOVEMBER 1980

TM-9-2320-273-20 - Page 1120 of 1500

TM 9-2320-273-20

AUXILIARY AIR-POWERED COMPONENT SYSTEMS.

9-45. AIR HORN AND CONTROL VALVE MAINTENANCE (Continued).

LOCATION/lTEM

ACTION

REMARKS

Do not remove valve (14) until pressure is

fully exhausted from all reservoirs.

NOTE

For access to horns and valve remove head-

liner screws and pull down headliner as

necessary.

1. Screw (10) and washer (11).

Unscrew and remove one

end of chain (12).

2. Chain (12).

Disconnect from handle on

Use pliers to open S-hook.

valve (14) by slightly open-

ing S-hook (13).

3. Supply line (18).

Unscrew from fitting (15).

4. Fitting (15).

Unscrew from valve (14).

5. Valve (14).

Unscrew from horn inlet (8).

6. Horn inlet (8).

Unscrew from tee (4).

7. Line (6).

Unscrew from connector (5)

and elbow (7).

8. Connector (5).

Unscrew from tee (4).

9. Plug (9).

Unscrew from tee (4).

10. Tee (4).

Unscrew from left hand

horn (24).

11. Elbow (7).

Unscrew from right hand

horn (24).

12. Six screws (22),

Unscrew and remove two

M917 has only one horn located

washers (17), and

horns (24), pedestals (20),

on left hand side.

nuts (16).

gaskets (23), gaskets (19),

and rubber liners (21 ).

13. Four screws (1) and

Unscrew and remove two

M917 only.

nuts (3).

plate covers (2), washers

(25), and washer (26).

M917 only.

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9-200