wheel SSANGYONG NEW ACTYON SPORTS 2012 Service Manual

13-10
5. COMPONENTS
Alloy wheel
Alloy wheel
Steel wheel
Cap assembly - wheel
Cap assembly - wheel
Nut (127.4 ~ 156.8 Nm)
Tire 1.
2.
3.
6.
7.
8.
9.

13-12
OVM Tools
Location ▶
Valve insertSpare tire
Jack (pantograph jack)
Wheel wrench
Jack connection
Driver (+, -)
Spanner 1.
2.
3.
4.
5.

13-154170-09
During driving, the rotating tire repeats deformation and restoring movement in is tread. This
happens when the tire pressure is low in high speed driving.
However, when the wheel rotating speed is fast, the tire is deformed even before it is restored to
its original shape and the trembling wave appears on the tread portion. If this symptom lasts for
an extended period of time, the tire can be blown out in a short period of time.
If the standing wave symptom occurs on the tire, rubber on the tread comes off and eventually
the tire can be blown out which is very dangerous. When driving at high speed, the inflation
pressure should be increased to decrease heat generation due to extension and contraction
motion, to decrease hydroplaning and to prevent standing wave.
To prevent this symptom, it is recommended to increase the tire pressure 10 ~ 30 % higher than
the specified pressure value in high speed driving.
Specified tire inflation pressure32psi
2. ABNORMAL TIRE SYMPTOM
Standing Wave ▶

13-174170-09
If weight is not equally distributed around the wheel, unbalance centrifugal force by the wheel
rotation produces vibration. As the centrifugal force is produced proportional to the square of the
rotating speed, the wheel weight should be balanced even at high speed. There are two types of
the tire and wheel balancing: static and dynamic. Abnormal vibration may also occur due to
unbalanced rigidity or size of tires.
Static Balance ▶
When the free rotation of the wheel is
allowed, the heavier part is stopped on the
bottom if the wheel weight is unbalanced and
this is called "Static Unbalance". Also, the
state at which tire's stop position is not same
is called "Static Balance" when the wheel is
rotated again. If the part A is heavier as
shown in the figure 1, add the balance weight
of a weight corresponding to unbalanced
weight from B to A to maintain the static
balance. If the static balance is not
maintained, tramping, up and down vibration
of the wheels, occurs.
Dynamic Balance ▶
The static unbalance of the wheel creates the
vibration in the vertical direction, but the
dynamic unbalance creates the vibration in
the lateral direction. As shown in the figure 2
(a), if two parts, (2) and (3), are heavier when
the wheels are under the static balance
condition, dynamic unbalance is created,
resulting in shimmy, left and right vibration of
the wheels, and the torque Fxa is applied in
the axial direction. To correct the dynamic
unbalance, add the balance weight of a same
weight for two points of the circumference of
the rim, A and B, as shown in the figure 2 (b),
and apply the torque in the opposite direction
to the torque Fxa to offset in order to ensure
smooth rotation of the wheel.
Center
A
B
(a) (b)
[Figure 1]
[Figure 2]
3. WHEEL BALANCE

02-58810-01
3. GENERAL WARNINGS
Do not diagnose the circuit with a circuit tester or attempt to modify any air bag components
including the steering wheel, air bag mounting area and harness.
Incorrect inspection could cause a problem with an air bag and seat belt pretensioner, and
they cannot protect occupants properly. Inspection and repair service should be done only by
a qualified technician.
An infant or a child should not be seated on the front seat alone or on an adult's lap. An infant
or a child could be severely injured by air bag deployed.
A child restraint system should be placed on the rear seat which has the 3-point type seat belt.
Never install a child restraint system on the front seat. Impact by the air bag inflation might
cause severe injury or even death.
When an occupant fastens the seat belt with unstable or inclined posture, the air bag cannot
protect the occupant properly. Moreover, the occupant may be injured by the air bag.
Do not incline toward the steering wheel while driving. If you hit the air bag before it is fully
inflated, brain or neck injury, or even death can occur.
Be careful not to strike the steering wheel, air bag mounting area, any air bag related
component (including wiring) and seat belt pretensioner. You might get severely injured by
sudden deployment of the air bag.
The air bag contains explosive materials, so handle it carefully when disposing or replacing it.
The air bag components will be very hot immediately after deployment. Do not touch them until
they cool down.
Once the air bag/seat belt pretentioner is triggered, it will not deploy again even if an additional
impact is applied to it. Once triggered air bag/seat belt pretensioner related components
cannot be reused, so they should be removed from the vehicle and the whole system should
be replaced with a new one.
Do not place any object or sticker on the air bag mounting area for correct and safe activation
of the air bag.
Do not bang the door. Otherwise, an air bag might operate erroneously.
Hold the outer rim of the steering so that the air bag can inflate without any hindrance.
Do not incline toward the steering wheel or hold the steering wheel with your hands crossed. It
will cause a problem with the air bag activation or severe injury when the air bag inflates.
Never put your hands or feet on the dash board. You can severely injured when the air bag
inflates.
It is normal that a loud noise, dust and smoke occur when the air bag and seat belt
pretensioner operate.
The gas come out of air bag/seat belt pretensioner activation is non-toxic nitrogen gas.
However, if this gas occurs irritation to your skin, eyes, nose, and so on, wash it out with clean
water. Seek medical help if symptoms develop. -
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