SSANGYONG RODIUS 2006 Service Manual

0-4
RODIUS 2007.07
4111-01
SUSPENSION SYSTEM
2. REAR SUSPENSION SPECIFICATION

0-5
SUSPENSION SYSTEM
RODIUS 2007.07
4111-01
3. STRUCTURE OF SHOCK ABSORBER AND COIL SPRING
1) front coil spring
▶ Specification

0-6
RODIUS 2007.07
4111-01
SUSPENSION SYSTEM
2) front shock absorber assembly
▶ Specification

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SUSPENSION SYSTEM
RODIUS 2007.07
4111-01
Marking Point
3) rear shock absorber
Keep the suitable distance when compressed and expanded.
Minimum length is 10 mm longer than the minimum length under compression. ·
·
▶Specification

0-8
RODIUS 2007.07
4111-01
SUSPENSION SYSTEM
4) rear coil spring
Steel for high tensional spring is adapted.
Maintain more than 20 mm of freeplay when compressed.
Spring seat applied. ·
·
·
▶ Specification

0-3
BRAKS SYSTEM
RODIUS 2007.07
4830-01
4830-01BRAKE SYSTEM
1. SPECIFICATION

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RODIUS 2007.07
4830-01
BRAKS SYSTEM
1. COMPONENTS OF BRAKE SYSTEM

0-5
BRAKS SYSTEM
RODIUS 2007.07
4830-01

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RODIUS 2007.07
4830-01
BRAKS SYSTEM
2. BRAKE SYSTEM OPERATION PROCESS
1) 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
frictional 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).
2) 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 maste
r
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, accordingly the caliper pads are
contacted to brake disc to generate the
braking force.
3) Brake Pedal
Brake pedal uses the leverage effect to
apply bigger force to the brake master
cylinder.

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BRAKS SYSTEM
RODIUS 2007.07
4830-01
4) Master Cylinder
The brake master cylinder is designed to
convert the force from the brake maste
r
cylinder to the high hydraulic pressure. The
brake system uses the tandem type master
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
pressure generated by the primary piston is
delivered to the front wheels, and the
hydraulic pressure generated by the
secondary piston is delivered to the rea
r
wheels.
5) Brake Booster
The brake booster is a power assist device for brake system. It relieves the pedal depressing
force by using the pressure difference between the vacuum pressure generated by vacuum
pump in intake manifold and the atmospheric pressure.
▶Pressure distribution at working
When depressing the brake pedal, the push
rod (1) in booster pushes the poppet (2) and
valve plunger (3). The poppet (2) pushes the
power piston seat (5) resulting in closing the
vacuum valve (9). The chamber (A) and (B)
in power cylinder are isolated and the valve
plunger (3) is separated from the poppet (2).
And then the air valve (6) opens and ai
r
flows into the chamber (B) through filter.
Then, the power piston (5) pushes the
master cylinder push rod (7) to assist the
brake operation.
▶Pressure distribution after working
When releasing the brake pedal, the valve
plunger (3) returns back to the original
position by return spring (4) and the air valve
(6) closes. At this time, the vacuum valve (9)
opens and the pressure difference between
chamber (A) and (B) in power cylinder is
eliminated. Accordingly, the power piston (5)
returns back to original position by the
reaction of master cylinder (10) and the
diaphragm return spring (8).