Front Disc Brake Caliper Assembly - Chrysler 2000 LHS Owner's Manual

5 - 6 BRAKES
DESCRIPTION AND OPERATION (Continued)
1 – CALIPER GUIDE PIN BOLT
2 – SLEEVE
3 – BUSHING
4 – CALIPER
5 – PISTON SEAL
6 – PISTON
7 – DUST SEAL
8 – WEAR INDICATOR
9 – ANTI-RATTLE CLIP
There are two brake shoes mounted to the brake
caliper (Fig. 7). One brake shoe is mounted 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 pad of the front
disc brake assemblies.
Retractor clips are mounted above and below the
brake pads (when mounted) (Fig. 7), except on mod-
els equipped with the performance disc brake pack-
age (BR5) (Fig. 8). The performance disc brake
package (BR5) does not use retractor clips.
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.
OPERATION
Two machined abutments on the steering knuckle
(Fig. 9) position and align the caliper fore and aft.
The guide pin bolts, sleeves, and bushings control the
side-to-side movement of the caliper.
Fig. 7 Front Disc Brake Caliper Assembly
10 – BRAKE SHOE
11 – RETRACTOR CLIP
12 – BRAKE SHOE
13 – ANTI-RATTLE CLIP
14 – BUSHING
15 – SLEEVE
16 – CALIPER GUIDE PIN BOLT
17 – RETRACTOR CLIP
The disc brake calipers have shoe retractor clips
attached to the inner and outer brake shoe and lin-
ing assemblies to help pull the front disc brake shoes
away from the rotor when the brakes are released
(Fig. 7). Vehicles equipped with the performance disc
brake package (BR5) do not have retractor clips (Fig.
8).
Although there are different disc brake systems
available, they operate and are serviced in the same
manner.
A square cut rubber piston seal is located in a
machined groove in the cylinder bore. This provides a
hydraulic seal between the piston and the cylinder
wall (Fig. 10). The piston seal is designed to pull the
piston back into the bore of the caliper when the
brake pedal is released. This, along with the brake
shoe retractor clips, maintains the proper brake shoe
to rotor clearance.
A molded rubber dust boot is installed in a groove
in the cylinder bore and the piston, keeping contam-
ination from the cylinder wall and the piston (Fig.
10).
LH