2013 SSANGYONG KORANDO tires

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.
1) 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.
2) 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
a
Fxa
Fxa F
F
A
B
(a)(b)
[Figure 1]
[Figure 2]
3. WHEEL BALANCE

Mounted view
If the vehicle is equipped with the TPMS, all wheels are equipped with the wheel modules. In this
case, the wheel module may be interfered with the wheel rim depending on the mounting surface
type of the rim. Therefore, always use the SYMC genuine wheel and wheel module for the vehicle. -
Clean the wheel mounting surface and inner side of the wheel thoroughly when replacing the tires.
However, never inject the commercial anti-flat fluid or similar substance. It may cause a critical error
to the wheel module. -

1) DOT LCD Display Related to TPMS
Status DOT LCD display Condition & illumination method
Correct tire pressureThe specified tire pressure is based on a
cold tire with the vehicle unloaded (no
Excessive tire pressureCorresponding status lamp blinks with
reverse shading at interval of 0.4 seconds if
tire pressure is 50 psi or higher
Low tire pressureWhen tire pressure is less than 13~20% of
specified value for a period of time,
corresponding status lamp blinks with
reverse shading for 70 seconds at interval o
f
0.4 seconds
Lower than minimum tire
pressureCorresponding status lamp comes on if tire
pressure is 24 psi or less
Sudden tire pressure lossCorresponding status lamp blinks with
shading reverse at interval of 0.4 seconds if
tire pressure changes more than 3 psi per 1
minute at speed of 0 km/h or above.
Imbalance between left and
right tire pressureCorresponding status lamps blink
alternately at interval of 1.0 second if tire
pressure differs by more than 4 psi in the left
and right tires while driving for more than 10
minutes
Impossible to determine tire
pressurePressure of the tire displayed as "--" when
not possible to determine tire pressure
correctly
* At initial start, the tire pressure can be
displayed after 10 minutes of driving at
speed of 20 km/h or higher
Supervision type

7. TIRE INFLATION PROCEDURE FOR VEHICLE WITH TPMS
1) Overview
For the vehicle with TPMS, the tire should be inflated in a method different from the conventional method
since the tire pressure values displayed on the tire pressure gauge and instrument cluster are different
after inflation.
The tire pressure displayed on the instrument cluster should be checked after a certain time delay
(wireless transmission time for wheel module).
The displayed value can be changed after driving even if it was set to the specified value.
2) Tire Inflation Procedure
Park the vehicle on a flat ground and let everyone get off the vehicle. A.
This symptom is occurred as the inflation pressure displayed on the instrument cluster becomes
different by tires as different load is applied to each tire due to driving condition, number of
occupants, irregular temperature change in tire and load condition.
If there is another vehicle equipped with the TPMS, keep the distance from this vehicle for at
least 5 mm to prevent interference of wheel module transmission.
Unload cargoes if they are usually not loaded during driving.
The instrument cluster does not display every pressure change while the air is injected or
discharged to/from the tire. This is because the wheel module sends the pressure value to the
TPMS ECU every minute.
In addition, if there are other vehicles with the TPMS nearby, it might take several minutes to
display the pressure values due to radio jamming and weather condition. -
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