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 1036 of 1500

TM 9-2320-273-20

BRAKE SYSTEM.

9-30. EXTERNAL AIR COUPLINGS MAINTENANCE (Continued).

LOCATION/lTEM

ACTION

REMARKS

A. REMOVAL .

1. Couplings (1) and

Unscrew and remove from

Tractor to trailer

couplings adapter (2).

hoses (3).

connections.

2. Shutoff valve (4).

Unscrew from coupling (1),

Front and rear connections.

coupling adapter (2), hose

(3) and bracket (5).

3. Hose (3) and shut-off

Inspect for:

Replace if necessary.

valve (4).

a. Leaks.

b. Cracks.

c. Damaged fittings.

d. Smooth valve handle

operation.

B.

INSTALLATION.

4. Couplings (1) and

couplings adapter (2).

5. Shutoff valve (4).

a. Apply liquid teflon

Tractor to trailer

to threads,

connections.

b. Screw on hoses (3).

a. Apply liquid teflon

Front and rear

to threads.

connections.

b. Install thru bracket(s) to

coupling (1), coupling adap-

ter (2), and hose (3).

9-116