SsangYong Korando II (1996-2006 year). Manual — part 241

SSANGYONG MY2002

4E-2 REAR BRAKES

DESCRIPTION AND OPERATION

DRUM BRAKE

This drum brake assembly is a leading/trailing shoe
design.

Both brake shoes are held against the wheel cylinder
pistons by the lower return spring and the fixed anchor
plate near the lower return spring. When the brakes
are applied, the wheel cylinder pistons move both
shoes out to contact the drum. With forward wheel
rotation, the forward brake shoe will wrap into the drum
and become selt-energized. With reverse wheel
rotation, brake shoes is transferred to the anchor plate
t h r o u g h t h e b r a k i n g p l a t e t o t h e a x l e f l a n g e .
Adjustment is automatic and occurs on any service
brake application. Do not switch the position of shoes
that have been in service, as this may render the self-
adjustment feature inoperative and result in increased
pedal travel.

The brake drum must have high abrasion resistance,
heatproof, high stiffness, fatigue stiffness and strength
enough not to make any deformation. The temperature
of the drum surface comes up to 500 - 700 °C on brake
operation by the friction with the lining. When the
temperature of the drum surface continues to keep
high, the friction coefficient goes down and the ‘fade
development’ occurs. When the brake is applied often
on the hill, any accident may be occur.

YAD4C010

Wheel Cylinder

Both wheel cylinder diameters are same in order to
balance the friction forces of both shoes.

The hydraulic pressure from the master cylinder is
provided to the wheel cylinder and the piston in the
wheel cylinder allows to push both shoes toward the
drum resulted in generating the braking force.

Brake Lining

The brake lining is installed with the brake shoe and
pushed toward the drum for applying the brake pedal.

Thus, lining must have high-heat tolerance, abrasion
resistance and high friction coefficient.

Brake Lining and Drum Clearance Automatic
Control System

If the lining’s wear is excessive, the piston moves to
long distance and the pedal travel increases. The
clearance between the drum and the brake lining
should be adjusted.

Generally the drum brake must be adjusted regularly
and thus the clearance automatic control system
enables to adjust the clearance between the brake
lining and the drum resulting from brake lining wear.

YAD4C020

1 Cylinder Housing
2 Boot
3 Spring
4 Piston Cup
5 Piston
6 Air Bleeder

1 Cylinder Housing
2 Boot
3 Spring
4 Piston Cup
5 Piston
6 Air Bleeder

REAR BRAKES 4E-3

SSANGYONG MY2002

DISC BRAKE

The disc brake uses at front wheel generally and
recently has been using at rear wheel. The floating
type caliper disc brake installed by this vehicle installs
only brake cylinder per caliper at one side. When the
master cylinder generates the hydraulic pressure, the
piston pushes the pad in order to compress to the
disc and at this time, the caliper is moved by this
reaction resulted in pushing the pad at the other side
to compress to the disc. Because the brake disc
contacts atmospheric conditions and effect on good
radiation, the braking variation keeps uniform forces,
the uneven braking may not be generated on high
speed driving.

YAD4C030

SSANGYONG MY2002

4E-4 REAR BRAKES

Application

Delphi Korea

-

-

-

-

φ

42 mm

10 mm

10.4 mm

Drum I.D.

Shoe Type

Lining Width x Length x Thickness

Wheel Cylinder I.D.

Caliper Cylinder I.D.

Brake Pad Thickness

Disc Thickness

SERVICE SPECIFICATIONS

MANDO

-

-

-

-

φ

42.9 mm

10 mm

10.4 mm

Disc Brake

Drum Brake

φ

254 mm

Leading and Trailing

55 x 243 x 4.7 mm

φ

23.81 mm

-

-

-

REAR BRAKES 4E-5

SSANGYONG MY2002

Lining Wear, Hardening

Oil or Water Contamination on the Lining

Inoperative Wheel Cylinder

Inoperative Clearance Automatic Control System

Lining Wear, Hardening

Oil or Water Contamination on the Lining

Inoperative Wheel Cylinder

Inoperative Clearance Automatic Control System

Damage of the Brake Shoe Return Spring

Inoperative Wheel Cylinder Returning

Lining Wear

Inoperative Clearance Automatic Control System

Lining Wear, Hardening

Foreign Material Inside Drum

Loosen the Brake Plate Bolt

Drum Deformation or Surface Damage

Lining Wear, Hardening

Oil Contamination on the Lining

Inoperative Clearance Automatic Control System

Replace

Replace or Repair

Replace

Repair

Adjust

Replace or Repair

Replace

Repair

Replace

Replace

Replace

Repair

Replace

Clean

Tighten

Replace

Replace

Replace

Repair

Poor Braking

Uneven Braking

Dragging Brake

Excessive Pedal Travel

Noise and Vibration When

Brake Applied

Inoperative Parking Brake

DIAGNOSTIC INFORMATION AND PROCEDURES

Symptom

Possible Cause

Action