Content .. 12 13 14 15 ..

Chery A15 / 480 LHD model. Manual - part 14

AXLE AND SUSPENSION SYSTEM

ALIGNMENT OF THE WHEEL … … … … … … …… … … … … … … … …M-2

BASIC INSPECTION BEFORE THE ALIGNMENT……………………… … …M-2

USUAL TROUBLE OF THE TIRE… … … … … …… … …… … … …… … …M-5

ALIGNMENT OF THE REAR WHEEL … … … … … … … ……… … … … … M-9

ALIGNMENT OF THE FRONT WHEEL… … … … … … ………… … ……M-10

FRONT SUSPENSION… … … … … … … … … …… … … … … … …… …M-13

REMOVAL AND INSTALLATION OF THE FRONT SUSPENSION………… …M-13

OVERHAUL OF THE FRONT SUSPENSION… … … … … … … ……… … …M-15

REMOVAL AND INSTALLATION OF THE FRONT WHEEL BEARING … … M-19

REAR SUSPENSION AND REAR AXLE… … … … … … … …… … …… … …M-22

REMOVAL / INSTALLATION OF THE REAR AXLE ASSY …… … … …… …M-22

REMOVAL / INSTALLATION OF THE REAR SHOCK ABSORBER ASSY … M-25

OVERHAUL OF THE FRONT AND REAR AXLE… … … … … … …… ……M-28

AXLE AND SUSPENSION SYSTEM

ALIGNMENT OF THE WHEEL

It is easy to understand that the theory of the four wheels alignment related to the definitions
and the functions of various angles. However, the corresponding theory can hardly be applied
to the four wheels alignment tester and chassis maintenance due to the chassis structure of the
vehicle body, which all the angles of the four wheels alignment bear on the mechanical
structure of the chassis. For examples:

－－The camber will be changed as the toe-in varied. The wheels will be turned while

adjusting the toe-in, which results the camber changing. The larger the caster is, the
more the camber changed.

－－The wheel setback will be changed as the caster adjusted. When the caster increases or

decreases, the upper fulcrum of the steering shaft can  move  forwards or backwards and
the  lowest  fulcrum  of  the  steering  shaft  (tire)  is  also  movable.  The  front  wheel  moves
forwards  or  backwards  along  with  the  caster  increasing  or  decreasing  so  that  the  axle
setback  will  be  altered.  The  turn  plate  must  have  the  function  of  sliding  forwards  and
backwards in order to make the front wheel move forwards and backwards freely.

－－The toe-in will be changed as the camber varied and vice versa. Various suspension

structures have different ways to adjust the camber. If the upper or lower fulcrum is
moved left or right, not only the camber but also the toe-in will be changed. As a result,
even if the camber is properly adjusted, the stable driving status cannot be achieved
because of the toe-in changing. Therefore, after eliminating of malfunction, another one
will appear.

－－Changing the toe-in of the rear wheel influences that of each front wheels. The toe-in of

the rear wheel determines the thrust angle of the rear wheel. The method of thrust line
positioning is adopted to determine the toe-in of the front wheel in all the advanced four
wheels alignment testers.

Precaution: The front wheel must be adjusted first and then the rear wheel when
processing the four wheels alignment. The sequence of the rear wheel adjustment is the
camber first, the toe-in second and so on. And the sequence of the front wheel
adjustment is the caster first, the camber second, the toe-in third and so on.

BASIC INSPECTION BEFORE THE ALIGNMENT

Check the tire pressure, tire No. and rim No.

----Check the tire pressure and adjust it to the specified pressure

Tire inflation pressure

kPa

Item

Front wheel

Rear wheel

Spare wheel

Mini spare wheel

No-load/half-load

200

220

350

420

Full-load

210

260

420

----Rim and Tire

A15LHD wheel No.

Tire No.

Rim No.

185/60 R14×82H

6J×14

Note:

The above tire-rim combination is suitable for the steel or aluminum alloy rim. Please
do not use rims and tires of other models which may lead to improper consequence.

Preaution: Be sure to consult the relevant instruction if non-standard tires or rims (such
as light weight alloy rims or wheels of winter tire)should be installed.

Positioning of the tire

Different working conditions between the front wheel and the rear wheel lead to the different
wear status, which depends mainly on the road condition, the driving custom and so on. The
front wheel wears faster than the rear one does. In order to prevent the tires from wearing in
different degrees and to prolong the service life of the tires, it is necessary to check and rotate
the tires, adjust the tire pressure, and examine the tightening degree of the wheel bolt at
interval of 5000km.

------ Utilization of the cold-resistant tire

If using the cold-resistant tire, all the four tires must be replaced at same time. Please do not
excess the top speed and must accord to the tire pressure limited by the tire manufacturer.

Precaution: Using the cold-resistant tire may affect the safety and the maneuverability
of the vehicle. Standard tires in same size and No. should be utilized. Do not use the
cold-resistant tire as long as the road condition is available.

------Snow chain

Adjusting  the  snow  chain  of  the  tire  should  accord  to  the  type  of  the  road  condition.
Inspection must be applied before install the snow chain. Please refer to the instruction of the
snow  chain  manufacturer  when  install  the  snow  chain  on  the  tire.  Please  remove  the  wheel
house before install the snow chain which may score the wheel house. Install the snow chain
firmly on  the  front tire.  It  is  not recommended to fix  the  snow  chain  on  the rear  wheel. The
snow chain should be retightened after 0.5~1.0km driving with it.

Precaution: Using the snow chain may affect the vehicle maneuverability, so the vehicle
speed  should  not  excess  50km/h  (30mph)  or  the  speed  limited  by  the  snow  chain
manufacturer(less  than  50km/h).  Please  stop  the  car  and  tighten  the  snow  chain
immediately when hearing collision between the snow chain and the vehicle body or the
chassis  when  using  the  snow  chain.  Abrupt  turning,  concussion  and  passing  the
chuckhole,  the  vehicle  locking  and  braking  should  be  avoided.  The  instruction  of  the
snow  chain  manufacturer  should  be  also  complied.  Improper  utilization  of  the  snow
chain will cause interference between the snow chain and the vehicle body.

Installation of the tire

----Make sure that the opening of the valve is slippery and no burrs before installing the tire

valve. Then apply glycerol onto the rubber surface of the tire valve or dip it briefly in the
glycerol. Pull or press the locating ring of the tire valve with special purpose tool at the
force of 200-400N in order to make it through the hole on the wheel, which means the
installation is finished. (Suds are permitted to replace the glycerol.)

----Wipe glycerol or suds round the bead before installing the tire, and please note at the

same time:

When there is a light point mark on the rim, please aim the uniformity test mark at the point.

When there is no light point mark on the rim, please aim the dynamic balance test mark at
the position of the tire valve.

When there is no light point mark on the rim and no dynamic balance test mark but the static
balance test mark on the tire, please aim the tire valve at the static balance test mark.

The instructions for the uniformity, dynamic balance and static balance test mark of the tire
should be offered by the production department or the supplier in written form.

----Inflate the tires according to the specified pressure strictly. Please do not excess 10% of

the rated pressure during inflating. The spare tire assy is assembled at the rated pressure
of 3.5atm and is separately stored with the four tires installed on the vehicle. Please check
and adjust the tire pressure before the four wheel alignment: front wheel 2.0±0.2atm,
rear wheel 2.1±0.2atm.

----Screw the valve cap after inflating the tire and undergo the dynamic balance test. Set the

proper weight balance block onto the inside and outside brims of the rim as required. The

Content .. 12 13 14 15 ..