REMOVAL - TM-9-2320-270-20-20184

TM9-2320-270-20-2

REAR AXLE AIRBRAKE AND SPRING BRAKE CHAMBERS - CONTINUED

ACTION

REMARKS

LOCATION

ITEM

WARNING

Tandem axle wheels must be chocked (TM 9-2320-270-10) before attempting to

replace tandem axle brake chambers. Tandem axle brakes are parking brakes.

Spring brake spring must be caged (TM 9-2320-270-10) on unit which you are repairing

or replacing. Spring brake spring holds enormous force and can cause serious injury.

Make sure all pressure is drained from air system before disconnecting air lines. Parts

under pressure can, when removed, fly off with great force causing injury to personnel.

NOTE

Steps in this task are the same for all four tandem axle airbrake and spring brake

chambers. Right rear chamber is shown.

REMOVAL

Drain (TM 9-2320-270-10).

Air system

Using 9/16-inch socket and handle, push

Adjusting screw (2)

2. Slack adjuster (1)

back bushing (3), and turn screw (2)

counterclockwise until all tension is

released.

a. Using long-nose pliers, take out.

Cotter pin (5)

3. Clevis pin (4)

b. Get rid of.

Take out.

Clevis pin (4)

4. Clevis (6) to slack

adjuster (1)

Using 1 1/16-inch and 13/16-inch

Hose (8)

5. Elbow (7)

wrenches, unscrew and take off.

Using 7/8-inch and 15/16-inch wrenches,

Hose (10)

6. Elbow (9)

unscrew and take off.

4-702