TM-9-2320-285-24-1

TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1985

TM-9-2320-285-24-1 - Page 622 of 987

TM 9-2320-285-24-1

2-51.

AIR BRAKE SYSTEM MAINTENANCE (CONT)

d.

Brake Air Chambers.

(2) Rear Axle Brakes Air Chambers.

STEP

LOCATION

ITEM

ACTION

REMARKS

DISASSEMBLY (cont)

2

k.

Clevis (27)

Remove

(cont)

and nut (28)

l.

Push rod (29)

Remove and

and spring

separate

(30)

m. Spring chamber

Position

In soft-faced vise.

Wear

assembly (12)

safety glasses; tighten

vise to contact pressure

plate (31) and spring

chamber assembly (12)

WARNING

Observe caution when removing nut (2),

washer (3),

and release stud (4).Compression

spring (32) is under extreme tension.

Failure to follow this procedure could result in extreme

injury.

If you are injured,

seek medical aid immediately.

n.

Nut (2) and

Remove

washer (3)

o.

Release stud

Remove

Turn counterclockwise 1/4

(4)

turn to disengage from

pressure plate (31); then

withdraw release stud

p.

Soft-faced vise

Open slowly

Relieves spring tension

q.

Pressure plate

Separate

(31) and

spring chamber

assembly (12)

r.

Compression

Remove

spring (32)

CLEANING

3

a.

Dust plug (1)

Clean

Use clean cloth,

moistened

with water

2-599