Chery Fora (Elara A520). Manual — part 111

CHERY A520 SERVICE MANUAL CHASSIS

20

they are damaged.

11) After repairing the brake hydraulic system or finding the brake pedal is becoming soft

during operation, you should discharge the air from the brake system in accordance with
required method and sequence.

12) You should try your best to select the tires recommended by the automobile

manufacturers. If the using of tires in other types is necessary, you should select the tires
with the outside diameter, traction performance and rotary inertia similar to the former
ones, but should not select the tires with different specifications, which shall impose
influence on the control effects of ABS.

8.2 Schematic diagram of abs control

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manner contrary to the terms of the agreement.

HCU 440V

A

BS

M

o

tor

L

F I

so

L

F

D

u

mp

R

F I

so

R

F

D

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mp

ABS Warning Lamp

(Discrete)

Master

Cylinder

Brake

Fluid

Reservoir

IGN+

Brake
Pedal

Brake

Switch

LF

LR

RF

Wheelspee

d

Sensor

Wheelspeed

Sensor

Brake

Booster

INSTRUMENT CLUSTER

Brake Warning

Lamp

ABS Warning

Lamp

LF Wheelspeed +
LF Wheelspeed -

L

F I

so

L

F

D

u

mp

EBC440V ABS

A

B

S

P

u

m

p

+

A

B

S

P

u

mp

-

L

R

I

so

L

R

D

u

mp

R

R

I

so

R

R

D

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mp

R

F

I

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R

F

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mp

L

R

I

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L

R

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RR

I

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R

R

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LR Wheelspeed +
LR Wheelspeed -

RR Wheelspeed +
RR Wheelspeed -

RF Wheelspeed +
RF Wheelspeed -

RR

Wheelspeed

Sensor

Chery S11 EBC440V System Schematic

ABS Only System

SIZE

FSCM NO

DWG NO

REV

B

A

SCALE

1 : 1

SHEET

1

Brake Switch

Ignition

Switch

ABS Motor B+
ABS Motor Gnd

ECU Gnd

ECU

Supply

Battery

+

-

Speedometer

Odometer

LF

RR

LR

RF

Wheelspeed

Sensor

C

A

N

_H

A

na

log

/D

is

cr

e

te

Keyword2000

Diagnostics

C

A

N

_L

CHERY A520 SERVICE MANUAL CHASSIS

21

8.3 Disassembly and assembly sequence

1)

Dismount the ABS module plug.

Push the white clip shown in the figure
towards the arrow direction, and the ABS
module plug shall recede.

2)

Use 10#, 12# open end wrenches to
dismount the nuts connecting ABS
assembly and pipelines.

Note: When dismounting the pipeline, you
should prevent the extraneous substances
from falling into the ABS assembly. You'd
better use clean gauze to block up the oil
inlet of ABS while dismounting the pipeline.

3)

Use ratchet wrench and 10# sleeve to
dismount the bolts connecting ABS
assembly and bracket ,and take out ABS
assembly.

8.4 Assembly sequence:

The assembly sequence is opposite to the
disassembly sequence.

Note: Turn on the power supply after
completing

installation,

and

connect

diagnosis instruments to the system to access
the failure code and then eliminate it. After
these procedures are finished, the diagnostic
tester shall carry out retest on the system.

CHERY A520 SERVICE MANUAL CHASSIS

22

Section IX Brake Fluid Filling and Air Discharge

Needed tools: diagnosis instrument and 10# open end wrench

If air enters into the brake system in the case of brake component repairing or replacement,
you should implement the complete air discharge process. Before the brake is air-discharged,
the front and rear air-discharge cylinder piston must return to the highest position. The
preferred method is to use failure diagnostic tester to make the cylinder piston return the
highest position once again. If failure diagnostic tester cannot be used, you can adopt the
second procedure, but you must carry out the operation in strictly accordance with the
specified steps.

If air enters into the brake system due to too low liquid level or the cut-off of brake pipeline
of the master cylinder, you must discharge the air from the four brake hydraulic systems. If
the brake hose or brake is broken on certain wheel, you should only discharge the air from the
wheel clamp. If brake pipe or hose is broken at any joint of mater cylinder and brake, you
should only discharge the air from the brake systems related to the broken pipe or hose.

9.1 Air discharge of brake system

1)

Uplift and support the car properly.

2)

Install the transparent plastic exhaust
hose onto brake caliper bleeder valve.

3)

Put the other end of the transparent
exhaust hose into the clean container
containing some clean brakes.

4)

Step on the brake pedal for 5-6 times,
and open the exhaust valve to make the
brake fluid flow.

5)

Repeat above mentioned the fourth step
until the there is no air bubble in the
brake fluid, and close the exhaust valve
when you feel more strength on step the
brake pedal.

6)

Dismount the transparent plastic exhaust
hose from the exhaust valve.

Note: The above-mentioned steps are
applicable for the air discharge of the brake
pipeline of each brake.

CHERY A520 SERVICE MANUAL CHASSIS

23

9.2 Air discharge sequence of brake system is:

Left back right front right back left front. If the ABS system connects with
failure diagnosis instrument, you can access the fluid filling and air release program, and
discharge the air from the ABS system according to the steps prompted by the system.

9.3 Air discharge of brake loop

Connect the exhaust hose of container to the fluid and air discharge valve of the left-back
brake caliper. Open the fluid and air discharge valve, and step on the brake pedal to the earth
for at least 5 times. The discharged brake fluid must be clean and have no air bubble. Keep
stepping on the brake pedal to the largest extent, close the fluid and air discharge valve and
then loosen brake pedal. Similar operations can be applicable for the brake systems of other
wheels.

9.4 Brake fluid filling

In order to ensure the reliability of brake system, you should check the brake fluid level at
intervals or after finishing the air discharge of the brake system. If brake fluid is deficient,
you should fill it instantly.

Note:

(1) Brake fluid should meet the standards stipulated by the Department of Transportation

(DOT) (only DOT4 can be used), and should not be mixed with other types of brake
fluid.

(2) Brake fluid has relatively strong water absorptivity. It should be put into the original

sealed container when being recycled.

(3) Brake fluid has relatively strong corrosiveness. If it splashes onto your skin, you should

instantly use wet cleaning cloth to wipe off the brake fluid, and then wash your skin by
soapy water. Brake fluid is strongly corrosive to the car body paint; therefore, you
should prevent the brake fluid from splashing onto the car body paint. If the brake fluid
splashes onto the car body paint, you should wash it immediately.

(4) During the process of air discharge, you should pay more attention to the brake fluid

level of fluid reservoir. If the brake fluid level is very low, you should refill it in time.

(5) Manual air discharge operation should be repeated for more times until the air in the

brake system is completely discharged.

(6) After finishing the fluid filling and air discharge operation, you should check whether

there is leakage in the brake system. If leakage phenomenon exits, you should eliminate
it timely in order to ensure the safety of car driving.