Workshop Manual

5C–64
POWER–ASSISTED BRAKE SYSTEM
Disc Brake
Front Disc Brake
A05R200001
Rear Disc Brake (4×4 Model)
A05RW002
The disc brake assembly consists of a caliper, piston,
rotor, pad assembly and support bracket. The caliper
assembly has a fornt dual bore, rear single bore and is
mounted to the support bracket with two mounting bolts.
The support bracket allows the caliper to move laterally
against the rotor. The caliper is a one–piece casting with
the inboard side containing the piston bore. A square cut
rubber seal is located in a groove in the piston bore which
provides the hydraulic seal between the piston and the
cylinder wall.
NOTE:
1. Replace all components included in repair kits used to
service this caliper.
2.Lubricate rubber parts with clean brake fluid to ease
assembly.
3.If any hydraulic component is removed or
disconnected, it may be necessary to bleed all or part
of the brake system.
4.Replace pads in axle sets only.
5.The torque values specified are for dry, unlubricated
fasteners.
6.Perform the service operation on a clean bench free
from all mineral oil materials.
Operation
Hydraulic pressure, created by applying the brake pedal,
is converted by the caliper to a stopping force. This force
creates a clamping action of the piston pressing towards
the rotors (outward) and the caliper slides inward toward
the vehicle. This clamping action forces the linings
against the rotor, creating friction to stop the vehicle.