Chrysler 300M 2002 Service Manual page 138

LH
MASTER CYLINDER (Continued)
Fig. 68 Master Cylinder
1 - BOOSTER
2 - MASTER CYLINDER
3 - MASTER CYLINDER FLUID RESERVOIR
4 - FLUID LEVEL FULL MARK
5 - FLUID LEVEL SWITCH
non-ABS equipped vehicles. The tube from the mas-
ter cylinder primary outlet port connects to the
inboard port of the junction block, and the tube from
the secondary outlet port connects to the outboard
port of the junction block. The inboard port of the
junction block supplies the right front and left rear
brakes. The outboard port of the junction block sup-
plies the left front and right rear brakes.
On vehicles equipped with Antilock Brakes (with or
without Traction Control), the master cylinder pri-
mary outlet port outlet tube connects to the inboard
port of the ICU, and the secondary outlet port outlet
tube connects to the outboard port of the ICU.
The master cylinder reservoir cap diaphragm is slit
to allow atmospheric pressure to equalize on both
sides of the diaphragm.
STANDARD PROCEDURE - MASTER CYLINDER
BLEEDING
CAUTION: When clamping the master cylinder in a
vise for bleeding, carefully tighten the vise just
enough to hold the master cylinder from moving.
Excessive pressure can damage the master cylin-
der.
(1) Clamp master cylinder in a vise.
NOTE: The master cylinder outlet ports use ISO
style flares and metric threads. Special Tool Pack-
age 8822 includes ISO style flare adapters with met-
ric threads to be used in conjunction with Bleeder
Tubes, Special Tool Package 8358.
BRAKES - BASE BRAKE SYSTEM 5 - 39
(2) Attach special tools for bleeding master cylin-
der in the following fashion:
(a) For non-ABS master cylinders, thread one
Adapter, Special Tool 8822–2, into each outlet port.
Tighten Adapters to 17 N·m (145 in. lbs.) torque.
(b) For ABS master cylinders, thread one
Adapter, Special Tools 8822–2, into the primary
outlet port and one Adapter, Special Tool 8822–1,
into the secondary outlet port. Tighten Adapters to
17 N·m (145 in. lbs.) torque.
(c) Thread one
8358–1, into each Adapter. Tighten each tube to 17
N·m (145 in. lbs.) torque. Flex bleeder tubes and
place open ends into mouth of fluid reservoir as far
down as possible (Fig. 69).
Fig. 69 Master Cylinder Set Up For Bleeding
1 - BLEEDER TUBES 8358
2 - NON-ABS - ADAPTER 8822-1; ABS - ADAPTER 8822-2
3 - ADAPTER 8822-2
4 - WOODEN DOWEL
NOTE: Make sure open ends of bleeder tubes stay
below surface of brake fluid once reservoir is filled
to proper level to avoid ingesting air while bleeding.
(3) Fill reservoir with Mopar
equivalent conforming to DOT 3 specifications. Make
sure fluid level is above tips of bleeder tubes in res-
ervoir.
(4) Using a wooden dowel as a pushrod (Fig. 69),
slowly depress master cylinder pistons, then release
pressure, allowing pistons to return to released posi-
tion. Repeat several times until all air bubbles are
expelled. Make sure fluid level stays above tips of
bleeder tubes in reservoir while bleeding.
(5) Remove bleeding tubes. Plug outlets and install
filler cap.
Bleeder Tube, Special
Brake Fluid or
Tool