TM-9-2320-283-20-2

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 2 OF 3

DECEMBER 1983

TM-9-2320-283-20-2 - Page 640 of 852

TM 9-2320-283-20-2

BRAKE SYSTEM.

3-173. TRAILER HAND BRAKE VALVE REPLACEMENT (Continued).

LOCATION/ITEM

ACTION

REMARKS

WARNING

Never work on air system components without first draining air pressure. Failure to follow this precaution

can result in serious personal injury.

A.

REMOVAL.

1

Inlet valve air

Remove

Tag for identification.

line (9) and

delivery port air

line (8).

2

Two bolts (7) and

Loosen and remove.

two lockwashers

(6).

3

Retaining strap

Remove.

(5) and trailer

hand brake valve

(11).

4

Two connectors

Loosen and remove.

(10).

B

INSPECTION

5

Delivery port air

Inspect for cracks, leaks,

Replace as necessary.

line (8), valve

and damaged threads.

and line (9), two

connectors (10),

and trailer hand

brake valve (11).

C

INSTALLATION

6

Two connectors

Install and tighten

Use thread sealing tape

(10)

on threads.

7

Trailer hand brake

Position on opposite sides of

valve (11) and re-

steering column at convenient

taining strap (5)

operating height.

3-1012