TM 9-2320-273-20
BRAKE SYSTEM.
9-37. REAR BRAKE AIR CHAMBER MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
15. Two air lines (4).
16. Manual drain valves (2).
17 Engine.
18. CAB/Park brake control (1).
19. Release stud (13).
20. Cap (15).
a. Coat threads with liquid
tefIon.
b. Screw in and tighten.
Ensure they are closed.
Start up (see TM 9-2320-273-
10). Allow system to reach
operating pressure of 105-120
psi (724-827 kPa).
Push in.
a. Turn nut (3) with washer
(16) to release spring.
b. Remove nut (3) and washer
(16) from stud (13).
c. Turn stud (13) 1/4 turn
counterclockwise (Ieft)
and remove from access
hole (14).
d. Insert stud (13) into holder
and secure with washer (16)
and nut (3).
Press into access hole (14).
Be sure to connect each
line to the correct port.
NOTE
Operational check requires system pres-
sure of at least 100 psi (690 kPa). Run
engine until this pressure is reached.
21. Engine.
Shut down.
22. CAB/Park brake control (1).
a. Push in.
Second mechanic.
b. pull out.
23. Air chamber (12).
a. Should actuate when valve
First mechanic.
is pulled out, and release
when valve is pushed in.
9-168
