2012 SSANGYONG NEW ACTYON SPORTS tire pressure

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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 the power to propel, brake and steer on the road. It also functions to maintain a
<009d008c008f0090008a0093008c02c5009a004700940096009d008c0094008c0095009b0055004700700095004700960099008b008c00990047009b00960047008a0096009400970093008c009b008c0047009a009c008a008f0047009b0088009a009200
9a0053004700880047009b00900099008c00470094009c009a>t 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 ride. A tire’s ty
pe, size, structure, pattern, manufacturing company, 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 ▶