SsangYong Actyon Sports II. Manual — part 142

09-16

Let the engine run for 1 to 2 minutes and

stop it. If the brake pedal stroke is shortened

as pumping the brake pedal, the system is

normal. If not, the system is defective.

Depress the brake pedal several times with

engine off. If the brake goes down when

starting engine with pedal depressed, the

system is normal. If not, the system is

defective.

Depress the brake pedal when the engine is

running. If the pedal height is not changed for

30 seconds after stopping the engine, the

system is normal. If not, the system is

defective.

1.

2.

3.

If the above three checks are OK, the system is

normal. If any condition is not met, check the

valve, vacuum hose and brake booster.

Brake Booster

▶

09-17

4850-01

Brake Fluid

▶

Brake Fluid Type

▶

1. Color

Ligh gold (New oil) → Brown → Black

-

2. Service Interval/Type

Change: every 2 years, Type: DOT4

The water in the brake fluid has an adverse effect to the brake system. If the fluid contains

around 3% of water, the boiling point of the brake fluid goes down by 25%. It will cause the vapor

lock frequently.

Water content in fluid: around 3% after 18 months, around 7~10% after few years

The water ib fluid makes the corrosion in the brake lines, deforms and deteriorates the rubber

components, brake calipers and pistons.

-

DOT4: Brake fluid for premium vehicle. Lower water absorbing rate AND higher boiling point than

DOT3

Brake Fluid Level Check

▶

The brake fluid level should be between "MAX"

and "MIN" on the reservoir. If it is below "MIN"

mark, check for oil leaks and refill the reservoir

with the specified fluid.

09-18

Front Brake

▶

Pad Thickness

1.

Measure the pad thickness and replace it if

it is below the wear limit.

-

New pad

Wear limit

10.5 mm

2 mm

Wera limit point

-

Disc Thickness

2.

Measure the disc thickness at over four

points.

If any of measured points is below the wear

limit, replace the brake disc with new one.

-

-

New disc

Wear limit

28 mm

25.4 mm

Disc Run-Out

3.

Install the dial gauge on the side of brake

disc and measure the run-out while rotating

the brake disc.

If the measured value exceeds the limit,

replace the brake disc with new one.

Otherwise, it may cause the pedal vibration

and shimmy when braking.

-

-

Limit

0.03 mm (before installation)

0.07 mm (when installed)

09-19

4850-01

Clean the dissembled components and visually check the followings:

Damage and tear on boot

4.

Uneven wear and oil contamination

5.

Damage, crack and wear on cylinder body (A)

and guide pin (B)

6.

Wear, rust and damage on the cylinder and

piston

Scratch and bending on disc plate

7.

8.