Chrysler 300M Service Manual page 148

LH
MASTER CYLINDER (Continued)
(4) Reconnect brake fluid level switch.
(5) Check and adjust brake fluid level as necessary
using Mopar Brake Fluid or equivalent.
CAUTION: It will be necessary to bleed the entire
base hydryaulic system if the brake system has
been open to air for an excessive amount of time or
air is present in the lines.
PEDAL
DESCRIPTION
A suspended type brake pedal is used on this vehi-
cle (Fig. 70). The pedal pivots on a shaft mounted in
the pedal support bracket under the instrument
panel. The pedal also connects to the power brake
booster input rod. The pedal ratio is 3.44:1.
OPERATION
When the brake pedal is depressed, it pushes in on
the power brake booster input rod applying the
brakes. At the same time, it allows the brake lamp
switch's plunger to extend, thus applying the brake
lamps.
REMOVAL
(1) Disconnect and isolate the remote ground bat-
tery cable from the ground stud on the right strut
tower.
(2) Remove the brake lamp switch from its bracket
(Fig. 70). The brake lamp switch is removed by
depressing and holding the brake pedal while rotat-
ing brake lamp switch in a counterclockwise direction
approximately 30 degrees. Pull the switch rearward
and remove it from its mounting bracket.
(3) Remove the retaining clip from the brake pedal
pin securing the power brake booster to the pedal
using following procedure (Fig. 71). Position a small
screwdriver between the center tang on the retaining
clip and the brake pedal pin. Rotate blade of screw-
driver enough so center tang on retaining clip can
pass over end of brake pedal pin, then pull retaining
clip off brake pedal pin.
(4) Remove the booster input rod from the brake
pedal pin.
(5) Remove the nut from the brake pedal pivot
shaft (Fig. 70). The pivot shaft has a flat on it to hold
while the nut is removed.
(6) Remove the brake pedal pivot shaft from the
brake pedal and pedal mounting bracket.
(7) Remove the brake pedal with bushings from
mounting bracket (Fig. 70).
NOTE: The bushings can be easily removed from
the pedal by pulling them straight out each side.
BRAKES - BASE BRAKE SYSTEM 5 - 41
Fig. 70 Brake Pedal
1 - BUSHINGS
2 - BRAKE PEDAL
3 - BRAKE LAMP SWITCH
4 - PIVOT SHAFT
Fig. 71 Brake Pedal Retaining Clip
1 - BRAKE PEDAL
2 - INPUT ROD
3 - SCREWDRIVER
4 - RETAINING CLIP
5 - BRAKE PEDAL PIN
INSTALLATION
(1) Make sure the pedal has a properly installed
bushing on each side of the pedal (Fig. 70).
(2) Lubricate the brake pedal pivot shaft and
brake pedal bushings using Mopar Lubriplate or an
equivalent.
(3) Install the brake pedal in the pedal bracket
(Fig. 70). Align the hole in brake pedal with the pivot
shaft holes in the pedal bracket.
(4) Install the brake pedal shaft (Fig. 70).