Chrysler 300M Service Manual page 152

LH
POWER BRAKE BOOSTER (Continued)
(6) Disconnect the wire connector from the brake
fluid level sensor on the right side of the master cyl-
inder reservoir.
(7) Remove the 2 nuts (Fig. 78) attaching the mas-
ter cylinder to the vacuum booster.
Fig. 78 Master Cylinder Mounting
1 - MASTER CYLINDER MOUNTING NUTS
2 - POWER BRAKE BOOSTER
3 - MASTER CYLINDER
(8) Carefully slide master cylinder off vacuum booster
with brake lines attached, and position it backwards, on
top of left engine cylinder head cover (Fig. 79).
Fig. 79 Master Cylinder Positioning
1 - BOOSTER
2 - MASTER CYLINDER
3 - ENGINE CYLINDER HEAD COVER
(9) Disconnect vacuum hose from power brake
booster check valve. DO NOT REMOVE CHECK
VALVE FROM POWER BRAKE BOOSTER.
(10) From under instrument panel, position a
small screwdriver between the center tang on the
power brake booster input rod to brake pedal pin
retaining clip.
BRAKES - BASE BRAKE SYSTEM 5 - 45
(11) Rotate screwdriver enough to allow retainer clip
center tang to pass over end of brake pedal pin and pull
retainer clip off pin. Discard retainer clip it is not to
be reused, replace only with a new retainer clip.
(12) Remove the four nuts that attach the power
brake booster to the vehicle dash panel. Nuts are
accessible from under the dash panel in the area of
the steering column and pedal bracket.
(13) Rotate the windshield wiper motor crank
lever until the crank lever points in the 12 o'clock
position (Fig. 80).
Fig. 80 Wiper Crank Lever Positioning
1 - WIPER MOTOR CRANK LEVER
2 - BRAKE BOOSTER
(14) Slide the power brake booster out of the dash
panel and remove from vehicle.
CAUTION: Do not attempt to disassemble the power
brake vacuum booster. It is serviced ONLY as a
complete assembly.
INSTALLATION - POWER BRAKE BOOSTER
(1) Position power brake vacuum booster on dash
panel.
(2) Install and tighten the 4 power brake booster to
dash panel mounting nuts to 28 N·m (250 in. lbs.) torque.
(3) Using lubriplate or equivalent, coat the bearing
surface of brake pedal pin.
(4) Connect booster input rod to brake pedal pin
and install a NEW retainer clip. Use only a new
retainer clip DO NOT USE the old clip.
NOTE: Before installing master cylinder, reposition
under hood wiring harness above master cylinder
mounting studs, in front of booster (Fig. 79).
(5) Carefully position master cylinder on booster.
Position wire harness routing bracket onto right mas-
ter cylinder mounting stud.