TM 9-2320-289-20
7-6.
SERVICE BRAKE SYSTEM BLEEDING INSTRUCTIONS (Con’t).
3.
4.
5.
6.
7.
8.
9.
NOTE
If only front or rear half of system has been serviced, it is usually
necessary to bleed oniy that haif of system; however, if firm braking
action cannot be obtained after bleeding, it will be necessary to bleed
entire system.
PRESSURE BLEEDING procedures cover bleeding at one wheel, Repeat
steps for each wheel ‘and bleed brakes in the following order: right
rear, left rear, right front, left front.
Remove master cylinder cover (3).
install pressure bleeding adapter on
master cylinder, and connect hose to
adapter and pressure bleeding tank.
Open pressure bleeding tank valve.
If bleeding rear brake line, remove
cap (10) from wheel cylinder bleeder
valve (9) on backing piate (8). if
bleeding front brake line, remove cap
(7) from bleeder valve (6) on caliper
(5) .
Connect a short piece of hose to
bleeder valve (6 or 9) and immerse
other end of hose in container
partially full of clean brake fluid.
Open bleeder valve (6 or 9) ¾ turn
and observe brake fIuid. Close valve
when brake fluid flows free of
hubbies.
Tighten bleeder valve (6 or 9),
remove hose,
and
install
cap
(7 or 10).
NOTE
DO NOT continue with step 8 until
all bleeding has been completed.
Close bleeding tank valve, disconnect
hose, and remove pressure bleeding
adapter. Install master cylinder cover
(3). Repressurize pressure bleeding
tank.
Loosen mounting bolt and remove
combination valve depressor (1) from
combination
valve (2). Tighten
mounting bolt.
TA49662
7-11
