Chrysler 2004 Concorde Service Manual page 112

5 - 8 BRAKES - BASE BRAKE SYSTEM
BRAKE FLUID LEVEL SWITCH
DESCRIPTION
The brake fluid level switch used on this vehicle's
master cylinder is internal to the master cylinder
fluid reservoir (Fig. 4). The vehicle wiring harness
has a connector which plugs directly into the brake
fluid reservoir.
Fig. 4 Master Cylinder
1 - BOOSTER
2 - MASTER CYLINDER
3 - MASTER CYLINDER FLUID RESERVOIR
4 - FLUID LEVEL FULL MARK
5 - FLUID LEVEL SWITCH
The brake fluid level switch in the brake fluid res-
ervoir is not a repairable item. If the switch is found
to be defective the entire brake fluid reservoir must
be replaced.
OPERATION
The purpose of the brake fluid level switch is to
provide the driver with early warning that brake
fluid in the master cylinder is below a normal level.
As the fluid drops below the designed level, the
switch closes completing the red BRAKE warning
indicator lamp circuit. This will illuminate the red
BRAKE warning indicator lamp located in the instru-
ment cluster. At this time, the master cylinder fluid
reservoir should be checked and filled to the full
mark with DOT 3 brake fluid. If the brake fluid
level has dropped in the brake fluid reservoir,
the entire brake hydraulic system should be
checked for evidence of a leak.
HYDRAULIC/MECHANICAL
DESCRIPTION
DESCRIPTION - FRONT DISC BRAKES
The front disc brake assembly used on this vehicle
consists of the following components:
• Disc brake caliper
• Brake Shoes (pads/linings)
• Caliper abutment rail shims
• Brake Rotor
The floating double pin single piston calipers (Fig.
5) used on this vehicle are mounted directly to the
steering knuckles and use no adapter. The caliper is
mounted to the steering knuckle using bushings,
sleeves and two thru-bolts which thread directly into
the steering knuckle (Fig. 6).
The caliper is a one piece casting with the inboard
side containing a single piston cylinder bore. The
front disc brake caliper phenolic piston is 60 mm
(2.36 inch) in diameter.
There are two brake shoes (pads) mounted to the
brake caliper (Fig. 5). One brake shoe mounts on
each side of a brake rotor. The brake shoe lining
material used has been specifically formulated to
meet the braking requirements of the vehicle. An
audible wear indicator is mounted on the outboard
brake shoe.
Rail shims are mounted above and below the brake
pads (when installed) on the machined caliper abut-
ment rails of the knuckle.
The brake rotor is mounted on the hub and bear-
ing. The rotor is made of iron and is vented to help
cool it during brake applications.
Vehicles equipped with standard four-wheel-disc
brakes utilize a conventional internally-vented hat
style rotor. Internally-vented refers to the fact that
the inner most diameter of the braking disc vents to
the rear of the rotor (Fig. 7).
Vehicles equipped with performance four-wheel-
disc brakes utilize an inverted-hat style rotor. This
rotor is externally vented meaning the inner most
diameter of the braking disc vents to the front (or
face) of the rotor (Fig. 7).
Although there are two different style brake rotors
depending on brake packages, they are serviced in
the same manner.
LH