Chery A21 2005, Service Manual, Page: 118 / 475

CHERY A520 SERVICE MANUAL CHASSIS
37
2. Tire wearing
(1) Check the depth of left tire tread. As the
right figure illustrated:
Standard tire: not less than 1.6mm.
Snow tire: 50% tire tread.
(2)
I
f the pointed wearing phenomena
occur, the tire should be replaced.
3. Abnormal tire wearing
Abnormal wearing examples are illustrated in
the right figure.
The possible reasons and resolving methods
are shown in the following table.
Possible Reason Resolving Method
(a)
* Deficient tire pressure (dual-side wearing)
* High-speed turn
* No tire alignment
* Measure &adjust tire pressure
* Lower down vehicle speed
* Tire alignment
(b)
* Too high tire pressure
* No tire alignment
* Measure &adjust tire pressure
* Tire alignment
(c) * Improper toe-in * Regulate toe-in
(d)
* Improper camber angle or caster angle
* Suspension system failure
* Imbalanced tire
* Out-of-round brake drum or butterfly disk
* Other mechanical problems
* No tire alignment
* Regulate, repair or replace axle and
suspension system components
* Repair or replace
* Ensure tire dynamic balance or replace
* Rectify or replace
* Rectify or replace
* Tire alignment
Fig. Tire Wearing
Dual-Side Wearing Central Wearing
Toe-In or Front
Extension Wearing
Single-side wearing
Fig. Tire Wearing
Wearing Indicating
Wearing Indicating
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