Chery QQ6 (Chassis). Service Instruction — part 2

17

4.4 Remove the hand brake control cable at the other side

with the same method.

4.5 Remove two fixing bolts from the driver’s seat with a

16# socket wrench, and then take off the seat.

4. 6 Remove all fix screws from the auxiliary instrument

panel assy with a cross screwdriver, and then take off the

auxiliary instrument panel assy.

4.7 Remove two hand brake fixing bolts as shown in the

picture with a 10# socket wrench.

4.8 Loosen two control cable fixing screws with a 14# box

Wrench, and then take off the guide plate.

Guide
Plate

18

4.9 Remove the pin clip with a screwdriver

4.10 Take off the control cable take-up pulley.

4.11 Draw out the hand brake control cable from the

bottom of vehicle body.

4.11 (Adjustement of hand brake) The design length of

this vehicle’s hand brake control cable is fixed. Refer to the

rear brake removal step for the adjustment of hand brake.

Adjusting the length of jogger (loosening it in clockwire

direction; tightening it in anticlockwise direction) can

implement the adjustment of hand brake.

4.12 Refer to the removel step for the installation step.

Turn Hear

19

Chapter 2 Adjustment of Suspension System and

Four-Wheel Alignment System

I. Disassembly, Reassembly and Maintenance of Front Axle and

Suspension System

1. Structural Diagram of System

The CHERY S21 car adopts the divided steering drive axle, with a McPherson independent

suspension. The upper of the suspension connects to the body while the lower to the subframe.

The McPherson independent suspension bears the drive and steering functions. Subframe connects

with vehicle body via elastic element, which improves diving stability and ride comfortability.

Structural diagram of Front Axle and Suspension System

20

Details of Front Axle and Suspension System Composition Diagram

1 Nut

9

Nut

17

Nut

2 Gasket

10

Left Control Arm

18

Nut

3 Rubber joint I

10

Right Control Arm

19

Bolt

4 Rubber joint II

11

Nut

20

Bolt

5 Left Push Rod Welding Assy

12

Subframe

21

Clamp

5 Right Push Rod Welding Assy 13 Front Strut Assy.

22

Rubber Bush

6 Nut

14

Nut

23

Bolt

7 Bolt

15

Front Connecting Rod Assy.

24

Bolt

8 Bolt

16

Front Stabilizer Bar

25

Bolt

21

2. Preparation

Tools: 8#, 15#, 18#, 19# sleeves; 10#, 13#, 15# wrenches.

3. Precautions

3.1 Please wear necessary labor protection supplies to avoid accidents.

3.2 Please attention whether the safety lock of lifter is locked when maintaining the chassis.

3.3 When carry out disassembly and assembly to shock absorber spring, prevent spring ejection

from being injured.

3.4 It is unallowable to weld and correct the load-carrying parts of wheel suspension and the guide

parts of wheel.

3.5 Update the locknut and rusty nuts when the chassis parts are removed, which the objective is

to ensure the safety.

4. Removal/Installation Step

4.1. Removal of shock absorber assy

4.1.1 Remove the tightening nuts from the tires with a 19# sleeve

or attached wrench, and then remove the tires (Left side as an

example).

Torque: 110±10N.m

4.1.2 Take off the ABS harness from the fixed seat by hand.

4.1.3 Remove the fixing bolts from the steering knuckle and shock

absorber with a 18# sleeve.

Torque: 110±10 N.m

22

4.1.4 Remove three fixing bolts to the frame from the shock

absorber assy with a 15# sleeve.

Torque: 60±5N.m

4.1.5 Remove the shock absorber assy.

4.2. Removal of control arm assy

4.2.1 Remove the fixing bolts to the control arm from the front

connecting rod assy with a 15# sleeve.

Torque: 100±10 N.m

4.2.2 Remove the connecting bolts of front push bar and control

arm with a 15# wrench.

Torque: 75±5 N.m

4.2.3 Remove the ball bolts from the control arm and steering

universal joint assy with a 18# sleeve.

Torque: 100±10N.m

4.2.4 Remove the connecting bolts from the control arm and front

axle with a 18# sleeve, and then take off the control arm assy.

Torque: 150±10 N.m

23

4.3. Removal of front axle

4.3.1 Remove the fixing bolts from the mud guard of chassis with

a 8# sleeve, and then take off the mud guard assy.

Torque: 3±0.5 N.m

4.3.2 Remove the front bracket bolts to the subframe from the

transmission with a 19# sleeve.

Torque: 110±10N.m

4.3.3 Remove the rear bracket bolts to the subframe from the

transmission with a 19# sleeve.

Torque: 110±10N.m

4.3.4 Remove two connecting bolts from the exhaust manifold

with a 15# sleeve.

Torque: 50±5Nm.

4.3.5 Remove two connecting bolts used to connect the exhaust

manifold and rear muffler with a 15# sleeve.

Torque: 50±5Nm.

24

4.3.6 Remove the fixing bolts from the right side of power assist

steering wheel with a 15# wrench.

Torque: 75±5 N.m

4.3.7 Remove the fixing bolts from the left side of power assist

steering wheel with a 15# wrench.

Torque: 75±5 N.m

4.3.8 Remove the fixing bolts used to connect the push bar and

subframe with a 19# sleeve.

Torque: 105±10 N.m

4.3.9 Remove the fixed support from A/C pipeline on the subframe

with a 10# wrench.

Torque: 25±2.5 N.m

4.3.10 Remove the fixed support from the condenser and subframe

with a 13# wrench.

Torque: 45±5 N.m

.

25

4.3.11 Remove four nuts used to connect the subframe and body with

a 18# sleeve, and then take off the front axle assy.

Torque: 150±10 N.m

4.3.12 Remove the fixing bolts and nuts from gum cover of stabilizer

rod with a 13# sleeve.

Torque: 50±5Nm.

5. Installation Step

Refer to Removal Step of Front Axle and Front Suspension System.

26

II. Disassembly, Reassembly and Maintenance of Rear Axle and

Suspension System

1. Structural Diagram of System

Structural diagram of Rear Axle and Suspension System

1

Rear Trailing Arm Assy

7

Rear Shaft Welding Assy

13

Nut

2

Bolt

8

Lateral Support Bar Assy

14

Nut

3

Rear

Shock

Absorber

Assy

9

Rear Spring Cushion

15

Bolt

4

Nut

10

Rear Bumper Block

16

Lock Nut

5

Bolt

11

Rear Coil Spring

17

Rear Brake With Drum Assy

6

Bolt

12

Nut

18

Bolt

27

2. Preparation

Tools: 11#, 13#, 15#, 18#, 19#, 30# sleeve; right-angled screwdriver;

pincers.

3. Precautions.

3.1 Please wear necessary labor protection supplies to avoid accidents.

3.2 Please attention whether the safety lock of lifter is locked when maintaining the chassis.

3.3 When carry out disassembly and assembly to shock absorber spring, prevent spring ejection

from being injured.

4. Removal/Installation Step

4.1. Removal of shock absorber assy and absorber spring

4.1.1 Remove the tightening nuts from the tires with a 19# torque

spanner or attached wrench, and then take off the tires (left side as

an example).

Torque: 110±10N.m

4.1.2 Remove the connecting bolts from the shock absorber assy and

rear axle with a 15# sleeve.

Torque: 100±10 N.m

4.1.3 Remove the connecting bolts of the shock absorber assy and

body with a 18# non-adjustable wrench, and then take off the shock

absorber assy.

Torque: 100±10 N.m

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4.1.4 Unclench the rear helical spring with a screwdriver.

4.1.5 Forcefully swing leftwards and rightwards the rear

bumper block by hand and then take off the block.

4.2. Removal of lateral support bar assy

4.2.1 Remove the connecting bolts from the left side of body

and lateral support bar with a 15# sleeve.

Torque: 100±10N.m

4.2.2 Remove the connecting bolts from the right side of body

and lateral support bar with a 15# sleeve, and then take off the

lateral support bar assy.

Torque: 100±10N.m

4.3. Removal of rear trailing arm assy

4.3.1 Remove the connecting bolts from the rear of rear axle

and trailing arm assy with a 13# sleeve.

Torque: 100±10N.m

29

4.3.2 Remove the connecting bolts from the intermediate of rear

axle and trailing arm assy with a 13# sleeve.

Torque: 100±10N.m

4.3.3 Remove the connecting bolts from the trailing arm and

body with a 15# wrench, and then take off the rear trailing

arm assy.

Torque: 100±10N.m

4.4. Removal of rear axle assy

4.4.1 Remove the connecting bolts from the brake pipeline

and rear axle with a 11# wrench. Attention to storage of brake

fluid.

Torque: 45±5 N.m

4.4.2 Remove the rear brake with drum assy by hand.

4.4.3 Remove the hand brake control cable with a plier.

30

4.4.4 Remove the lock nuts from the rear brake with drum

assywith a 30# combination sleeve, and then take off the rear

brake with drum assy.

Torque: 180±10N.m

4.4.5 Remove the rear axle assy.

5. Installation Step

The installation step is reverse to that of removal.

31

III. Adjustment of Four-Wheel Alignment System

Please check and adjust the parameters with the help of the four-wheel alignment system

recommended by the CHERY Automobile Co.. Ltd.

S21 standard four-wheel alignment system parameters:

Item

Parameter

Model

SQR7130S21

SQR7110S21

Front Wheel

Camber Angle

0.87°±50′

0.87°±50′

Kingpin Caster

Angle

3.4°±30′

3.4°±30′

Kingpin

Inclination Angle

12.7°

12.7°

Front

Wheel

Front Wheel

Toe-In

6′±6′

6′±6′

Rear Wheel

Camber Angle

0°±30′

0°±30′

Rear

Wheel

Rear Wheel

Toe-In

0°±10′

0°±10′

Sideslip

≤ 3m/km

≤ 3m/km

1. Adjustment of Front Wheel Toe-In

The toe-in can be adjusted using an optical tester or a mechanical toe-in regulator.
1.1 On the basis of requirement of the tester, position the wheels and conduct the preparation
work before adjusting.
1.2 Loosen the lock nut and of the elastic protective sleeve snap ring right steering tie bar. Turn
the toe-in regulator lever as required to regulate the length until it reaches the specified value; and
the toe-in value: 6′±6′.
1.3 Tighten the lock nut, reinstall the elastic snap ring of protective sleeve, and then check
whether the lock nut is tightened and whether the position of protective sleeve is proper;
Torque: 35±3Nm
1.4 After adjusting toe-in of front wheel, check whether the steering wheel is horizontal.
Otherwise, loosen the lock nut of steering wheel, regulate the steering wheel to the horizontal
position, and then tighten the steering wheel lock nut to the specified torque.

2. Adjustment of Front Wheel Camber Angle

2.1 In the normal case, after the independent suspension and

wheel steering knuckle are assembled, it is unnecessary to

adjust the camber angle. If the wheel camber angle is found

deviated from the tolerance range due to the other causes,

apply the connecting bolts of independent suspension and

steering knuckle to correct the camber angle.:

Front wheel camber angle: 0.87°±50′

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2.2 Before correction, check (visually) whether the parts of running system is damaged, and

repalce the damaged parts;

2.3 If the front wheel camber angle is found out of the tolerance range, loosen the connecting

bolts of front shock absorber and steering knuckle, and move the wheel to correct the angle.

3. Adjustment of Kingpin caster and inclination angles

The Kingpin caster and inclination angles are guaranteed by the design structure, without

adjustment in service. The Kingpin caster angle: 3.4°±30′, Kingpin inclination angle: 12.7°. If any

parameter exceeds the specified range, replace thesteering knuckle only.

4. Adjustment of rear wheel positional parameters

All of the rear wheel alignment parameters shall be guaranteed through design process.

4.1 Rear wheel camber angle: 0°±30′

4.2 Rear wheel toe-in: 0°±10′

4.3 If the rear wheel alignment parameters change due to the deformation of rear axle which is

subject to the very big impact force, and these parameters exceed the specified range, correct or

replace the rear axle only.

IV. Installation of Tire and Regulation of Air Pressure

1. Assembly of Tire Valve

Prior to the assembly of tire valve, firstly check the valve port to ensure whether it is smooth and

free from burr, and then apply glycerol on the rubber body surface, or soak the tire valve into

glycerol. Pull or press using special tools with 200 - 400N to make the locating ring of the valve

can go through the wheel holes, to this point, the assembly is completed (soap water is allowed

to substitute glycerol).

2. Assembly of Tire

Before assembly of the tire, apply glycerol or soap water along the cycle of tire bead, meanwhile,

note that:

2.1 If the wheel rim has the dot marks, align the uniformity testing marks with the dot marks of

the wheel rim.

2.2 When without dot marks on the wheel rim, align the dynamic balance testing mark of tire to

valve position.

2.3 When without dot marks on the wheel rim, additionally, there is no dynamic balance testing

mark, however, static balance testing mark is available, align the valve to the static balance

testing mark.

2.4 The description concerning the uniformity, dynamic balance and static balance testing marks