Chery QQ6 (S21) / S12LHD. Manual — part 171

CONTENT

Chapter 1 Brake System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

I. System Checking Parameters . . . . . . . . . . . . . . . . . . . . . . . . .. 4

1. Check brake disc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Thickness checking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3. Checking of brake friction lining thickness. . . . . . . . . . . . . . . . . . . 4

4. Checking of brake disc run-out . . . . . . . . . . . . . . . . . . . . . . . .. 4

II. Removal/Installation and Overhaul of Front Brake and Brake Calliper. . . . . . ... 5

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

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. Removal and Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6

III. Removal/Installation and Overhaul of Rear Brake . . . . . . . . . . . . . . .. 10

1. System Structural Diagram. . . . . . . . . . . . . . . . . . . . . . . . ... 10

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10

4. Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11

4. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . ... 13

IV. Adjustment and Replacement of Handbrake . . . . . . . . . . . . . . . . . 14

1. System Composition Illustration . . . . . . . . . . . . . . . . . . . . . . .. 14

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 14

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 14

4. Removal/Installation Procedure . . . . . . . . . . . . . . . . . . . . . . ... 14

Chapter 2 Adjustment of Suspension System and Four-Wheel Alignment . . . . . . . ... 18

I. Removal/Installation and Overhaul of Front Axle and Suspension . . . . . . . . ... 18

1. System Structural Diagram. . . . . . . . . . . . . . . . . . . . . . . . ... 18

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20

4. Removal/Installation Procedure . . . . . . . . . . . . . . . . . . . . . . ... 20

4.1 Removal of Shock absorber assembly . . . . . . . . . . . . . . . . . . . 20

4.2 Removal of Control Arm Assembly . . . . . . . . . . . . . . . . . . . ... 21

4.3 Removal of Front Axle Assembly. . . . . . . . . . . . . . . . . . . . ... 22

5. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . ... 24

II. Removal/Installation and Overhaul of Rear Axle and Suspension . . . . . . . . ... 25

1. System Structural Diagram. . . . . . . . . . . . . . . . . . . . . . . . ... 25

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 26

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 26

4. Removal/Installation Procedure . . . . . . . . . . . . . . . . . . . . . . ... 26

4.1 Removal of Shock Absorber Assembly and Shock Absorber Spring . . . . . . . . 26

4.2 Cross Stay Assembly . . . . . . . . . . . . . . . . . . . . . . . . . .. 27

4.3 Rear Trailing Arm Assembly . . . . . . . . . . . . . . . . . . . . . . .. 27

4.4. Removal of Rear Axle Assembly. . . . . . . . . . . . . . . . . . . . ... 28

5. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . ... 29

III. Adjustment of Four-Wheel Alignment . . . . . . . . . . . . . . . . . . . ... 30

1. Adjustment of Front Wheel Toe-In . . . . . . . . . . . . . . . . . . . . . .. 30

2. Adjustment of Front Wheel Camber Angle. . . . . . . . . . . . . . . . . . .. 30

3. Adjustment of Caster Angle and Kingpin Inclination . . . . . . . . . . . . . . .. 30

4. Adjustment of Rear-Wheel Alignment Parameters . . . . . . . . . . . . . . . .. 31

IV. Tire Installation and Air Pressure Adjustment. . . . . . . . . . . . . . . . . 31

1. Installation of Air Valve . . . . . . . . . . . . . . . . . . . . . . . . . ... 31

2. Tire Assembling . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 31

3. Tire Inflation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4. Installation of Wheel and Tire Assembly. . . . . . . . . . . . . . . . . . . . 32

5. Tightening Method of Wheel Bolts . . . . . . . . . . . . . . . . . . . . . .. 32

6. Installation of Decorative Cover. . . . . . . . . . . . . . . . . . . . . . ... 32

Chapter 3 Removal/Installation and Overhaul of Steering System . . . . . . . . . . . 33

I. Removal/Installation of Steering Gear . . . . . . . . . . . . . . . . . . . . .. 33

1. System Composition Illustration . . . . . . . . . . . . . . . . . . . . . . .. 33

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 34

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 34

4. Removal/Installation Procedure . . . . . . . . . . . . . . . . . . . . . . ... 35

5. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . ... 36

II. Removal/Installation of Steering Column . . . . . . . . . . . . . . . . . . ... 37

1. System Composition Illustration . . . . . . . . . . . . . . . . . . . . . . .. 37

2. Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 37

3. Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 37

4. Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 38

5. Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . ... 43

III. Adjustment of Steering Gear Clearance . . . . . . . . . . . . . . . . . . . 44

IV. Adjustment of Power Steering System . . . . . . . . . . . . . . . . . . . . 44

Chapter 1 Brake System

I. System Checking Parameters

1. Check brake disc:

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

replaced.

2. Thickness checking

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

exceeding the operating limit, the front disc should be replaced.

3. Checking of brake friction lining thickness

Standard thickness of front brake lining shall be 10 mm, application limit shall be 1 mm, and the remaining

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

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

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

4. Checking of brake disc run-out

Use dial gauge to check the face runout of brake disk, the application limit of front disk shall be 0.03mm, the

application limit of rear disk shall be 0.03mm, otherwise replace it.

Important notice:

After completion of replacing friction lining or brake disk, apply the brake for several times to enable breaking-in

between brake lining and brake disk. Always ensure safety!

After replacing brake lining, check brake fluid level to ensure it is between MIN and MAX.

II. Removal/Installation and Overhaul of Front Brake and Brake Calliper

1. System Structural Diagram

Structural Diagram of Front Brake Assembly

(1) Brake disc positioning bolt

(2) Brake disc

(3) Wheel hub bearing unit;

(4) ABS speed sensor plug

(5) Dust cover

(6) Steering joint

(7) Fixing bolt

(8) Friction lining

(9) Friction lining thickness sensor plug

(10) Brake bracket

(11) Brake calliper assembly

(12) Fixing bolt