Lifan 620. Service manual - part 26

road surface better, reduces the vehicle vibration due to uneven road surface and enhances the 
comfort and driving stability. 
2. Rear suspension. Refer to Fig. 2-2. 
 

 

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Fig. 2-4 

(3) Toe-in of wheel: It refers to that the weel moves inward off the geometric center line/thrust line. 

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The negative toe-in means that the wheel moves outward, as shown in Fig. 2-5. 
 

Kingpin inclination angle 

11°15′±45′ 10°30′±30′ 

Kingpin caster angle 

3°00′±30′ 4°00′±30′ 

Rear wheel camber angle 

1°50′±30′ -1°55′±30′ 

Rear wheel toe-in 

-2-2 

2-6 

 

 

 

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II. Fault Elimination Table, Table 2-2. 

Table 2-2 

Fault  

Possible Cause  

Action  

Incorrect vehicle height (high or low front or rear)

Check if the load is abnormal, if the ring 

spring is sunken or is not standard spring. 

Worn or broken steering gear or connecting rod. 

Check the steering system. 

Brake system.   

Check the brake. 

Incorrect wheel alignment.   

Adjust the wheel alignment.   

Leaning to one 

side  

Damaged suspension. 

Check the suspension. 

Incorrect tire pressure.   

Adjust the tire pressure.   

Improper worn 

tire  

Incorrect wheel alignment.   

Adjust the wheel alignment.   

Damaged or worn front wheel bearing   

Check the front wheel bearing.   

Wheel and tire.   

Check the tire. Balance the tire or install a 

new one if necessary.   

Incorrect wheel alignment. 

Adjust the wheel alignment.   

Vibration  

Abnormal steering system operation.   

Check the steering system.   

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