Tyre Presentation Number Two June 2003

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Tyre Presentation Number TwoJune 2003
PLAY YOUR PART IN TYRE SAFETY
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TYRE SAFETY

• Key Points
• Tyres are Safety Critical components, which
  require simple but regular care and attention.
• Tyres in good condition will hold your vehicle
  securely on the road, allowing it to stop, start
  and manoeuvre safely --worn out, under-inflated
  or unsuitable tyres will not.
• They are your only contact or footprint with
  the road. A tyre with a big footprint will
  provide better grip on dry roads

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETY

• Key Points
• Tyres must be suitable for the purpose for which
  the vehicle will be used. e.g.
• Light buses, light trucks (Canters etc.) are
  fitted by the vehicle manufacturer with on road
  or city type road tyres-if these vehicles will
  spend most of their working day on interior
  graded roads, then the tyres HAVE to be changed
  to tyres fit-for-purpose-ie suitable for both
  graded and blacktop roads.
• The vehicle owner/user must discuss with the
  local vehicle dealer the operating environment of
  the vehicle - ensure that suitable tyres are
  fitted.

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETY

• Key Points
• Tyres NOT suitable for the purpose or road type
  on which the vehicle will be used will develop
  faults such as this peeling, detached sidewall.
  This tyre is designed for blacktop the vehicle
  (light bus) was being used 20 of time on graded
  road.
• Check with the vehicle agent or tyre agent that
  the tyres fitted are suitable for use and road
  type

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETY

• Be tyre SMART, play your PART
• Pressure Under-inflation is a tyres worst enemy
  Results in tyre stress, irregular wear, loss of
  control and accidents. Under-inflation is the
  leading cause of tyre failure. Check tyre
  pressures with a gauge when tyres are cold.
• Alignment Vehicle pulling to one side or
  shaking? A bad jolt against the kerb, or in a
  pothole can damage tyres.
• Check the alignment at a tyre workshop
• Rotation Assists in uniform tyre wear, rotate
  your tyres per vehicle user manual, usually
  around every 8,000kms. Remember to re-check
  correct pressure front and back.
• Tread Measure it-Inspect it. Tread wear reduces
  the ability of the tyre to grip the road. Built
  in tread wear ribs in the tread groove
  indicate minimum safe tread depth.

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETY

• Read your Tyre Side Wall One
• Tyre Sizes are made up of a number of different
  numbers and letters. For example tyre size
• 205R80 16 82 T is made up of the following
  information205 This is the tyre section width
  in millimetresR This denotes the tyre's
  construction type - in this case it's a radial
  80 This is the aspect ratio in (the height of
  the sidewall divided by the tyre's width)16
  This is the rim diameter in inches
• 82 This is the load index, in this case475kg
  T This is the speed rating, in this case T
  190kph. (R170 Q 160, P150 kph etc)

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETY

• READ YOUR TYRE
• SIDE-WALL two
• Tyre Age Tyres carry a three digit age code on
  the sidewall indicating the month and year of
  manufacture. For example 120 means the tyre was
  manufactured in December 2000. Some other
  manufacturers codes give the week number of
  manufacture and Year 1700 17th week of year
  2000.
• There is also a code in mixed letters and numbers
  denoting the factory location.T or TL Tyre is
  Tubeless Do not fit tubes into tubeless tyres

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETY

• Read Your Tyre Side-Wall Three
• Temperature The tyre temperature ratings are A,
  B or C. . (AA are for high speed sports cars).
  The rating is a measure of how well the tyre
  dissipates heat and how well it handles the
  build-up of heat. The temperature grade applies
  to a properly inflated tyre that is not
  overloaded.
• Under-inflation, overloading or excessive speed
  can lead to more heat build-up especially in the
  summer months. Excessive heat build-up can cause
  tyres to wear out faster, or could even lead to
  catastrophic tyre failure. A rated are best for
  Oman conditions, C tyres are not permitted in
  the GCC-- strictly for cooler climates-discard if
  you have them!

NEGLECTING TYRES COSTS LIVES
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TYRE SAFETYTREAD FAILURES
Tread failures, i.e. total separation of the
tread from the rest of the tyre can cause
catastrophic loss of control.
Keep your tyres at the correct pressure-and do
not drive for hours on end at excessive speeds.
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TREAD FAILUREConsequences can be Death
Complete tread separation at high speed, rear
tyre deflated, wheel rim ran on roadtotal loss
of control rollover, one fatality.
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TREAD FAILUREConsequences can be Death
Tread in process of separating from the inner
tyre of a light bus
Demonstrates the importance of carrying out daily
checks, and again prior to starting journeys of
over 2hours duration.
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TYRE SAFETYOVERLOADING
DO NOT OVERLOAD TYRES!
!!
Tyres have kg or lbs load ratings marked -giving
maximum loading per tyre. Do NOT exceed these.
15 Tonnes Overload on 25T capacity trailer .
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TYRE SAFETYOVERLOADING
Prime mover overloaded on rear axle Two tyres
blew immobilised Truck. A following vehicle ran
into rear One Dead
Tyre overloading was one of the factors which
contributed to this fatality.
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TYRE SAFETYEXCESSIVE WEAR
Blow out due to excessive wear on the shoulder of
the tyreboth front tyres showed evidence of
excessive uneven wear on the tyre edge or
shoulder. Blowout point Should have been
changed prior to reaching this weakened
condition.
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TYRE SAFETY
Tanker was driven I Km on Flat Tyre. Tread
Separated Driver Overreacted ROLLOVER
Running on a deflated tyre, a significant
contributory factor in this incident
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TYRE SAFETYFAST and HOT OVERHEATING
High speed journey from Muscat over 120kph non
stop -past Nizwa, front tyre blew. Rollover No
seatbelts being worn TWO DEAD
csm51MAR2002
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TYRE SAFETY
(A Reminder from Tyre Safety Presentation number
one)

• DO NOT FIT TUBES INTO TUBELESS TYRES
• The rubbing of the inner tube against the tyre
  casing (designed to be tubeless, therefore
  tubeless tyres have rougher inside linings)
  creates additional heat increasing the likelihood
  of tyre failure.
• TUBELESS TYRES HAVE BETTER
• HANDLING,
• RIDE COMFORT
• SAFETY CHARACTERISTICS
• DO NOT DIMINISH THESE ADVANTAGES BY FITTING TUBES
  TO TUBELESS TYRES.

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TYRE SAFETY

• DO NOT FIT TUBES INTO TUBELESS TYRES
• By inserting a tube into a tubeless tyre it is
  converted completely into a tube-type tyre and
  rim combination ie. It will deflate very
  quickly when punctured, and you may lose control
  of the vehicle.
• The running characteristics of the tubeless tyre
  can be adversely affected by inserting a tube,
  eg. Side wall flexibility.

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TYRE SAFETY
Presentation Two
THE END