Brake System Description And Operation; Hydraulic Brake; Brake Pedal; Master Cylinder - SSANGYONG 2004 Rexton 2.7XDi Workshop Manual

GENERAL INFORMATION
DESCRIPTION AND OPERATION
Brake System
Even though a driver cuts off the power, while driving, the
vehicle continues to move due to the law of inertia.
Therefore, a braking device is needed to stop the vehicle.
The brake system normally uses the frictional discs that
converts the kinetic energy to the thermal energy by fric-
tional operation.
The brake system consists of the brake disc (front wheel),
brake disc or drum (rear wheel), parking brake (mechanical
type), master cylinder, booster, pedal and supply lines
(pipes and hoses).

Hydraulic Brake

This system uses the leverage effect and Pascal's
principle. When depressing the brake pedal, the pedal
pressure is increased by booster and is delivered to mas-
ter cylinder to generate hydraulic pressure.
The hydraulic pressure generated by the master cylinder
is delivered to the brake caliper through the brake pipes or
hoses.
This hydraulic pressure pushes the brake calipers, ac-
cordingly the caliper pads are contacted to brake disc to
generate the braking force.
BRAKE SYSTEM
REXTON SM - 2004.4

Brake Pedal

Brake pedal uses the leverage effect to apply bigger force
to the brake master cylinder.

Master Cylinder

Y220_08A001
Rear
The brake master cylinder is designed to convert the force
from the brake master cylinder to the high hydraulic
pressure. The brake system uses the tandem type mas-
ter cylinder with in-line 2 pistons.
The in-line 2 pistons generate the hydraulic pressure. The
piston cup on the piston keeps the sealing conditions in
cylinder and prevents the oil leaks. The hydraulic pres-
sure generated by the primary piston is delivered to the
front wheels, and the hydraulic pressure generated by the
secondary piston is delivered to the rear wheels.
8A-3
Y220_08A002
Front
Y220_08A003
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