TIRE AND WHEEL
GENERAL INFORMATION 24-3 ON-VEHICLE SERVICE 24-7
Precautions 24-3 Tire Replacement 24-7
Tire Identification 24-3 Wheel 24-9
Specifications 24-4 Removal 24-9
Installation 24-9
DIAGNOSIS & TESTING 24-5
Wheel Balance 24-10
Problem Symptoms Table 24-5
Adjustment 24-10
Inspection 24-5
Tire Rotation 24-11
Description 24-11
Rotation Method 24-11
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GENERAL INFORMATION
TIRE AND WHEEL
Precautions
Use tires only with the standard specification and type, because they have excellent reliability and skid
resistance. Non-standard tire may lead to vehicle malfunction, causing accident or even serious injury and
death.
Contact surface of rim and tire should be cleaned before installing a new tire.
When installing the wheel bolts, firstly, pre-tighten the bolts by hand, and then tighten them to the specified
torque with a torque wrench.
Do not apply grease to the wheel bolts.
Some bad driving habits will shorten the life of tire:
- Rapid acceleration
- Depress brake pedal suddenly and firmly
- High-speed driving
- Turn at excessive speed
- Striking curbs or other obstacles
- Tire pressure is too high or too low when driving vehicle
Tire Identification
Letter and number code of tire type, size, load index and
speed level are stamped on the side wall of tire as shown
225/65 R17 102H
in the illustration. 225/65
R1
71
02
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Specifications
Torque Specification
Description Torque (N·m)
Wheel Mounting Bolt 110 ± 10
Tire Type
Description Parameter
Tire Type 225/65 R17 102H
Rim Type
Description Parameter
Rim Type 17 × 7 J
Tire Pressure Specifications of Cold Tire
Description Pressure (kPa)
Front Tire (Unloaded) 230
Rear Tire (Unloaded) 230
Spare Tire 250
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DIAGNOSIS & TESTING
Problem Symptoms Table
HINT:
Use the table below to help determine the cause of the problem symptoms. Check each suspected area in
sequence. Repair or replace the faulty components, or adjust as necessary.
Symptom Suspected Area See page
Wear on one side of tire Wheel alignment (wrong) 23-47
Wear on both sides of tire Tire pressure (insufficient) 24-4
Tire center wear Tire pressure (excessive) 24-4
Serrated wear Wheel alignment (wrong) 23-47
Severe wear of some area of tire Brake (too hard) -
Scratches on side wall of tire Sharp objects on road (scratched) 24-5
Tire pressure (incorrect) 24-4
Excessive tire noise
Tire (worn) 24-5
Inspection
CAUTION
Be sure to refer to the instruction when installing non-standard tires and rims.
Use tires only with the standard specification and type.
1. Check if tires are damaged or scratched as shown in the
illustration.
2. Check if rims are damaged or scratched as shown in the
illustration.
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3. Check if tires are worn abnormally as shown in the
illustration.
Wear on Both Sides Center Wear
Serrated Wear Wear on One Side
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4. Check the tread wear indicators (arrow) as shown in the
illustration. When tires are worn to the indicating mark,
replace them.
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5. Use tire pressure gauge to check if pressures of all tires (including spare tire) are normal. Inflate tires to
specified tire pressure as necessary.
6. Check the air cock for leakage.
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ON-VEHICLE SERVICE
Tire Replacement
WARNING
Speed level of new replaced tire must meet the specified values for safe operation; otherwise the tire
may blow out.
1. Remove the wheel (See page 24-9).
2. Use a tire remover to remove the tires according to the instructions.
CAUTION
Before installing air cock, check if air cock hole of wheel is smooth without any burrs, and apply glycerin
to air cock rubber surface or soak air cock in glycerin fluid, and then using a tool to pull or press locating
ring of air cock with force to pass it through the coke hole and install it into place (it is possible to use
soapy water instead of glycerin).
Apply glycerin or soapy water around tire before assembling the tires.
When there is "dark point" mark on rim, align static balance "light point" testing mark or dynamic balance
"light point" testing mark on tire with the "dark point" of rim.
When there is no "dark point" mark on rim, align static balance testing mark or dynamic balance "light
point" testing mark on tire with the air cock.
3. The white dot on tire edge must be aligned with the air
cock on rim when installing the tires, as shown in the
illustration.
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4. Adjust tire pressure to the specified value.
CAUTION
Be sure to inflate tires as specified air pressure. The maximum air pressure cannot exceed 10% of rated
air pressure during inflating the tire.
Replace using specified standard tire with the same size and type.
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5. Check the contact surfaces among air cock, tire and rim for leakage.
6. Using a dynamic balancer, adjust the wheel balance (See page 24-10).
7. Install the wheel (See page 24-9).
(Tightening torque: 110 ± 10 N·m)
CAUTION
Avoid scratching tires and rims when removing tires.
Contact surface between tire and rim should be cleaned when installing tires.
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Wheel
Removal
1. Remove the wheel.
a. Stop the vehicle at a level ground and apply parking brake.
b. Using a tire wrench, loosen the wheel mounting bolts.
c. Firmly support and raise vehicle to a proper height.
d. Using a tire wrench, remove 5 wheel mounting bolts.
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e. Remove the wheel.
Installation
1. Install the wheel.
a. Anticorrosion treatment is conducted on the contact surface between wheel and brake disc.
b. Install the wheel and pre-tighten the wheel mounting bolts by hand.
c. Using a torque wrench, tighten the wheel mounting
bolts evenly to the specified torque in the order shown
in the illustration.
(Tightening torque: 110 ± 10 N·m)
1
3 4
5
2
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CAUTION
DO NOT attempt to repair wheels by striking, heating or welding.
Replace wheel mounting bolts with the special wheel mounting bolts, rather than those with different
specifications or inferior quality.
Be careful not to damage coating on wheel.
To avoid damage to tire or over/under tightening the wheel mounting bolts, never use an impact wrench.
DO NOT apply grease to wheel mounting bolts.
To ensure wheel mounting bolts are tightened in place, wheel mounting nuts should be tightened after
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driving 100 km at the first time.
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Wheel Balance
Adjustment
CAUTION
Dynamic balancer must be calibrated before adjusting wheel balance.
Remove impurities inside the tread pattern and original balance blocks to ensure wheel balance.
1. Remove the wheel (See page 24-9).
2. Adjust tire pressure to the specified value.
3. Install the wheel to balancer with balance block removed. Install the balance shaft with mounting surface of
wheel facing inward, choose a suitable taper body, and firmly lock the wheels using a locking device (align
the taper body with center hole, otherwise data may be incorrect).
4. Turn on power source of balancer, and input parameters such as the measured distance from rim to
balancer, rim width and rim diameter.
5. Put down the wheel protector, and proceed to balance test procedure automatically (start button should be
pushed for some balancers). When the measurement is completed, unbalanced weight for both sides of
tire will be displayed on the balancer automatically, and the wheel automatically brakes until it stops. Do
not open the protector before stopping. Failure to do this may lead to accident.
6. According to the measurement result, corresponding
balance blocks should be installed on the outside (1) and
inside (2) of rim edge as shown in the illustration.
2
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7. Perform the test again after assembly is completed, until the balancer displays 0.
8. After dynamic balance is completed, remove the wheel.
CAUTION
When installing balance blocks, the final assembly unbalanced degree should be less than 200 g·cm,
which means clamp type balance block of inside rim is 8 g and paste type balance blocks of outside rim
is 10 g.
24 DO NOT tap balance blocks forcibly when installing them in order to prevent balance blocks from
deforming.
DO NOT reuse deformed balance blocks, replace as necessary.
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Tire Rotation
Description
Front and rear tires operate at different loads and perform different steering, driving and braking functions. For
these reasons, different wear rate is formed, causing irregular wear patterns. These effects can be reduced by
rotating the tires at regular time.
Advantages of tire rotation:
Improving tread life
Maintaining traction levels
Maintaining smooth and quiet driveability
CAUTION
Chery recommends you rotate your tires every 10000 km. However, the best suitable time for tire rotation
differs depending on driver's driving habits and road conditions.
Rotation Method
Perform tire rotation as shown in the illustration.
Front
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