Chery A15. Manual - part 65

Malfunction of suspension system 

-- 

-- 

One side deflection 

of braking 

Uneven tire pressure of both sides 

Malfunction of braking system 

Adjust 

-- 

Heavily steering of 

steering wheel 

Insufficient tire pressure 

Malfunction of steering system 

Malfunction of suspension system 

Adjust 

-- 

-- 

Improper 

returnability of 

steering wheel 

Insufficient tire pressure 

Malfunction of steering system 

Malfunction of suspension system 

Adjust 

-- 

-- 

 

Check whether the connection of the transmission rod of steering system is loose, 
deformed, etc.   

Check the status of the ball joint and the rubber bush of front and rear suspension 

Check whether the shock absorber works normally 

------Check whether the shock absorber leaks grease 

------Check whether the bush wears out 

------Check whether the shock absorber is improper through shaking the vehicle body up and 

down by pressing the foreside and the tail of the vehicle   

Pre-check before wheel alignment 

------Check the status of the tire inflation. Adjust to the recommended pressure if necessary. 

------Check the clearance of the front wheel bearing. Adjust it if necessary. 

------Check the flop of the vehicle and the tire. 

------Check whether the ball joint and the steering linkage are too loose. 

------Check the shock absorber by shaking the vehicle. 

Note: 

 

  The vehicle must be on the level ground with no-load. 

 

  No-load: Full gasoline in the oil reservoir, engine coolant and the oil filled at the specified 
level; the spare tire, jack and tools in the pointed position. 

M-8

------Measure the height from the wheel center to the mudguard edge. The measured 
difference from left and right should be not more than 10mm. 

 

 

 
 
 
 
 
 
 
ALIGNMENT OF THE REAR WHEEL 

 

It is recommended to utilize the four-wheel alignment tester with thrust line positioning 
method on this type of chassis. 

Note: thrust line positioning is defined as adjusting the front wheel toe-in based on the 
rear wheel thrust line.   

With the thrust line positioning, the adjustment of the rear wheel toe-in will influence the 
single front wheel toe-in, so during four-wheel alignment, the rear wheel should be adjusted 
before the front wheel alignment.

 

 

Measure the vehicle height 
------Rear measure point 

From ground to the center of the joint bolt of 
the rear axle and the body (as the arrow 
shows) 

Precaution: Check whether the height from 
left and right are same before processing 
the wheel alignment 

------If there is a difference of the heights from 

left and right, that means there are 
damaged or deformed components of the 
front and rear suspension.

 

 

Install the wheel alignment tester on wheel 

 

------Please refer to the specific instruction of 

manufacturer for the wheel alignment 
tester. 

 
 
 
 

 

M-9

 

Check the caster 

Inspection angle 

Value 

Rear wheel caster 

-1°30′±10′ 

 

Note: The rear wheel caster cannot be adjusted. If there is abnormal wear on the tire of 
the rear wheel, so check whether there are worn or deformed parts on the rear 
suspension 

Check the rear wheel toe-in 

 

Car No. 

Chery A15LHD 

Rear wheel toe-in 

20′±10′ 

 

Note: The rear wheel toe-in out of standard range may lead to wear on shoulder of 
tire on both sides. If the differences of the rear wheel toe-in both rear wheel are too 
much, the vehicle running direction may be affected. Therefore the rear wheel toe-in 
is a vital parameter of the alignment angles. 

 

 

ALIGNMENT OF THE FRONT WHEEL 
------Install the wheel alignment tester on the wheel 

Please refer to the specific instruction of manufacturer. 

------Check and adjust the wheel camber and the kingpin caster of the front wheel 

according to the standard 

 

Angle Value 

Front wheel camber 

-30′±20′ 

Kingpin caster 

1°30′±30′ 

Note: Adjust the caster before the camber 

 

Kingpin caster 

There is no need to adjust the kingpin caster for it is assured by the structure of design 

 

M-10

Influence of caster 

The main function of the caster is to keep the vehicle running straight forward. If the caster is 
positive, the inside of the vehicle descends and the chassis ascends which increase the 
steering knuckle load when the front wheel turns. If the casters of two wheels are same, the 
vehicle will return forward after turning. Increasing the positive caster angle will enhance 
stability of the steering wheel while the steering force will be increased at the same time. 
Decreasing the positive caster may reduce stability of the steering wheel but lightens the 
steering force. 

The angle of the caster could not make the wear on tire. It is used to stabilize the steering 
direction and to return automatically after steering. If the vehicle is equipped with a 
traditional manual steering wheel, the caster is small or even tends to negative, which makes 
the steering easy. If the vehicle is equipped with a power steering wheel, the caster is usually 
set to be large positive in order to offer the driver a better feeling. Increasing the positive 
caster will increase the steering force but enhances the stability of straight running. 

 
 

Adjust the camber 

 

 

Under normal condition, there is no need to 
adjust the camber after assembling the 
independent suspension and the wheel 
steering knuckle. Use the joint bolt of the 
independent suspension and the steering 
knuckle to calibrate the wheel camber if the 
camber is out of the tolerance range for other 
reasons. 

----Check (visual inspection) whether there 

are damaged parts in the steering system 
and replace the damaged ones before the 
calibration. 

----If the front wheel camber is out of the 

tolerance, loosen the joint bolt of the 
front shock absorber and the steering 
knuckle and move the wheel to calibrate.

 

 

----

For the further calibration, use the 
substitute bolt to adjust the wheel 
camber. Replace the M12 bolt with the 
M11 bolt. The camber is allowed to be 
adjusted within about ±1° shown as the 
illustration 

 

 

M-11