2013 SSANGYONG NEW ACTYON SPORTS tire pressure

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Symptom Possible Cause
Wear at tread edge
Insufficient tire inflation pressure
or overload
Wear at tread center
Excessive tire inflation pressure
Excessive wear in the outer side of the
tread than in the inner side
Excessive camber or deflection of
knuckle arm
Excessive wear in the inner side of the
tread than in the outer side
Insufficient camber or deflection o
f
knuckle arm
1) Appearance Check
4. INSPECTION
InsideOutside
Inside
Outside
InsideOutside
Inside
Outside

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2) Typical Inspection
Tread
Inspect the tread condition on the tire surface
and various damages resulting from the
foreign materials, crack, stone or nail etc. If
there is any damage in the tire, repair or
replace it. 1.
Wear limit 2.
Measure the depth of the tire tread. If the
depth of the tread is below the specified
value, replace the tire -
You can see the protruded part in the
groove at the point with mark "▲", which
is the indicator of the tread wear limit.
The limit of the tread wear for all season
tires are 1.6 mm, which is the same as the
general tires, but the wear limit mark is
indicated as '↓'. -
-
Wear limit 1.6 mm
Higher than recommended pressure can cause hard ride, tire bruising or damage and rapid tread
wear at the center of the tire.
Excessive tire wear over the limit of the tread wear (1.6 mm) can cause lower sliding friction due to
longer braking distance, easy tire burst by foreign materials, tire hydroplaning, and tough brake and
steering wheel handling. -
-

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Measure the dial runout and lateral runout
on both the inboard and outboard rim
flanges. - Tire inflation pressure -
Check the tire inflation pressure by
inspecting the tread width. -
Specified value 2.66 mm
Wheel runout
If wheel runout or tire runout is excessive, it
could result in abnormal wear of the tire.
Measure the runout with a dial gauge. 4.
Measure free radial runout on the tire tread. -
Specified value 2.03 mm
If any measurement exceeds the above
specifications, replace the applicable tires
or wheels -Tire inflation pressure 3.
Specified value 32 psi
Maintaining the specified tire ressure is
essential for comfortable riding, driving
safety, and long tire life. Incorrect inflation
pressures will increase tire wear and will
impair safety, vehicle handling, comfortable
driving and fuel economy. Always make sure
that the tire inflation pressure is correct.
Proper
inflationProper
inflationOver
inflation
Tread width Tread width Tread width

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1. OVERVIEW
A radial tire uses a cord angle of 90 degrees. That is, the cord material runs in a radial or direct line from
one bead to the other across the tread. In addition, a radial tire has a belt overwrap under the tread
surface to provide greater structural stability. The belt overwrap of a radial tire distortion while the radial
structure enables high speed driving.
Tire supports the weight of the vehicle, reduces the impact from the road and at the same time, transmits
<009b008f008c004700970096009e008c00990047009b009600470097009900960097008c0093005300470089009900880092008c004700880095008b0047009a009b008c008c00990047009600950047009b008f008c0047009900960088008b0055004700
70009b004700880093009a00960047008d009c0095008a009b>ions to maintain a vehicle’s
movement. In order to complete such tasks, a tire must be structured to be a resilient vessel of air.
There is wear limit mark on the tire, which protrudes as a strip shape located approximately 1.6 mm from
the groove bottom. This wear limit mark is not seen from the outside so there is additional "▲"
mark on the shoulder to let the driver find the wear mark easily. To measure the tire groove depth,
measure at any point other than the point which has a wear limit mark.
The tire is worn unevenly according to the driver's driving habit, improper servicing, low tire inflation
pressure, changed tire location, etc.

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Structure of Tire ▶
Tread
This thick layer of rubber provides the interface between the tire and the road. Wear-resistant rubber is
used to protect the carcass and belt against fractures and impacts and to deliver a long driving life.
Shoulder
Located between the tread and sidewall, the shoulder rubber is the thickest so that the design must
allow for the easy diffusion of heat generated within the tire while driving.
Sidewall
The part between the shoulder and bead, the flexible sidewall protects the carcass and enhances the
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9c008d0088008a009b009c009900900095008e0047008a0096>mpany, product name and various
characters are indicated here.
Bead
The bead attaches the tire to the rim and wraps the end of the cord fabric. Comprised of the bead wire,
core, flipper and other parts, the bead is generally designed to be slightly tight around the rim so that in
the case of a sudden drop in inflation pressure, the tire will not fall off the rim.
Carcass
As the most important framework of a tire, the entire inner layer of cord fabric is called the carcass. The
carcass acts to support air pressure, vertical load and absorb shocks.

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Tire Unit Indication ▶
Tire Inflation Pressure (32 psi) ▶
Proper inflation
pressureExcessive inflation pressure Low inflation
pressure
Aspect ratio (%)
= Nominal section height (H) / Nominal section
width (W)
X 100
The contact area between the
ground and tire faces the tread
layer completely. Thus the
driving force and the braking
force are optimized, and the tire
is worn out evenly resulting in
increased life.The contact area between the
ground and tire is not enough,
so the tire is worn out unevenly
and the tire is vulnerability to
outside influence.The contact area between the
ground and tire is excessive, so
a lot of heat is generated and
the tire is worn out unevenly
and abnormally.
Tread width Tread width Tread width

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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 ▶

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When the vehicle is driven on a road surface covered with water at high speed, tires do not contact with
the road surface but rotate floating on a thin film of water.
It causes brake failure, lower traction force and losing the steering performance.
To prevent this, increase the tire inflation pressure, use tires with leaf shape tread which is not worn.
However, it is a best measure to drive slowly. Hydro Planing ▶
Vehicle speed ≤ 60 km/h
No Hydro planningVehicle speed = 80 km/h
Partial Hydro planningVehicle speed ≥ 100 km/h
Full Hydro planing