Chery QQ6 (S21) / S12LHD. Manual - part 44

TABLE OF CONTENTS

CHAPTER 1 BRAKE SYSTEM ..................................................................................................4

I. System Maintenance Parameters.............................................................................................4

1. Brake disc check: ............................................................................................................4

2. Thickness check ..............................................................................................................4

3. Brake lining thickness check ..........................................................................................4

4. Brake disc runout check..................................................................................................4

Disassembly/Reassembly and Maintenance of Front Brake and Brake Caliper .........................5

1. Structural Diagram of System.........................................................................................5

2. Preparation ......................................................................................................................6

3. Precautions......................................................................................................................6

4. Removal and Maintenance..............................................................................................6

III. Disassembly, Reassembly and Maintenance of Rear Brake ............................................... 11

1. Structural Diagram of System....................................................................................... 11

2. Preparation .................................................................................................................... 11

3. Precautions.................................................................................................................... 11

4. Removal Step................................................................................................................12

5. Installation Step ............................................................................................................14

IV. Adjustment and Replacement of Hand Brake .....................................................................15

1. System Composition Diagram......................................................................................15

2. Preparation ....................................................................................................................15

3. Precautions....................................................................................................................15

4. Removal/Installation Step.............................................................................................15

CHAPTER 2 ADJUSTMENT OF SUSPENSION SYSTEM AND FOUR-WHEEL

ALIGNMENT SYSTEM................................................................................................................19

I. Disassembly, Reassembly and Maintenance of Front Axle and Suspension System ............19

1. Structural Diagram of System.......................................................................................19

2. Preparation ....................................................................................................................21

3. Precautions....................................................................................................................21

4. Removal/Installation Step.............................................................................................21

4.1. Removal of shock absorber assy........................................................................21

4.2. Removal of control arm assy .............................................................................22

4.3. Removal of front axle ........................................................................................23

5. Installation Step ............................................................................................................25

II. Disassembly, Reassembly and Maintenance of Rear Axle and Suspension System ............26

1. Structural Diagram of System.......................................................................................26

2. Preparation ....................................................................................................................27

3. Precautions....................................................................................................................27

4. Removal/Installation Step.............................................................................................27

4.1. Removal of shock absorber assy and absorber spring .......................................27

4.2. Removal of lateral support bar assy...................................................................28

4.3. Removal of rear trailing arm assy ......................................................................28

4.4. Removal of rear axle assy..................................................................................29

5. Installation Step ............................................................................................................30

III. Adjustment of Four-Wheel Alignment System...................................................................31

1. Adjustment of Front Wheel Toe-In...............................................................................31

2. Adjustment of Front Wheel Camber Angle ..................................................................31

3. Adjustment of Kingpin caster and inclination angles ...................................................32

4. Adjustment of rear wheel positional parameters...........................................................32

IV. Installation of Tire and Regulation of Air Pressure............................................................32

1. Assembly of Tire Valve..............................................................................................32

2. Assembly of Tire...........................................................................................................32

3. Tire Inflation .................................................................................................................33

4. Installation of Wheel and Tire Assy..............................................................................33

5. Method to Tighten the Wheel Nut ................................................................................33

6. Installation of Trim Cover.............................................................................................33

CHAPTER 3 DISASSEMBLY/REASSEMBLY AND MAINTENANCE OF STEERING

SYSTEM..........................................................................................................................................34

I. Removal/Installation of Steering Wheel................................................................................34

1. System Composition Diagram......................................................................................34

2. Decomposition Diagram of Steering Wheel ..............................................................35

3. Schematic Diagram of Steering Universal Joint and Protective Sleeve........................35

2. Preparation ....................................................................................................................35

3. Precautions....................................................................................................................35

4. Removal/Installation Step.............................................................................................36

5. Installation Step ............................................................................................................37

II. Removal/Installation of Steering Column ............................................................................38

1. System Composition Diagram......................................................................................38

2. Preparation ....................................................................................................................38

3. Precautions....................................................................................................................38

4. Removal Step................................................................................................................39

5. Installation Step ............................................................................................................42

III. Adjustment of Clearance of Steering System .....................................................................43

IV. Adjustment of Power Steering System................................................................................43

Chapter 1 Brake System

I. System Maintenance Parameters

1. Brake disc check:

The friction surface of brake disc should be flat and has no apparent grooves; otherwise, replace it.

2. Thickness check

The standard thickness of front disc (ventilation disc) is 17 mm with service limit of 15 mm; when

exceeding the service limit, replace it.

3. Brake lining thickness check

Standard thickness of front brake lining shall be 10 mm, service limit shall be 3 mm, and the

remaining thickness of limit of brake pad thickness shall be not less than 3mm.

Standard thickness of rear brake lining shall be 5 mm, service limit shall be 1 mm, and the

remaining thickness of limit of brake pad thickness shall be not less than 1 mm.

4. Brake disc runout check

Check the brake disc side face runout with a dial gauge. The service limit of front disc is 0.03mm,

and, if exceeding the limit, replace the disc.

Important notice:

After completion of replacing friction lining or brake disc, stop down brake for several times to

enable breaking-in between brake lining and brake disc. Make sure safety!

After replacing brake lining, check brake fluid level if is between MIN and MAX.

Disassembly/Reassembly and Maintenance of Front Brake and Brake

Caliper

1. Structural Diagram of System

Structural Diagram of Front Brake Assy

(1) Brake Disc (2) Dust Cover

(3) Wheel Hub Bearing Unit (4) Caliper Assy

(5) Friction Lining (6) Steering Knuckle

Front Left Brake

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