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Even a MICHELIN® PAX® System Tire or Self-Supporting Zero Pressure
(ZP) tire can build up excessive heat when run underinflated for an
extended period of time. The length of time and distance a PAX System
Tire/Self-Supporting Zero Pressure (ZP) tire will perform at low or zero
air pressure will depend upon the severity of the event causing air loss,
ambient temperature, speed at which the tire is operated, and the
conditions under which the tire is operated (i.e. hard braking, cornering
and other sharp maneuvers will greatly reduce the length of time the tire
can perform at low or zero air pressure.) Continuous use of an underin-
flated tire may lead to sudden tire destruction. If a tire at low or zero
pressure begins to vibrate or cause difficulty in vehicle handling, remove
the tire immediately and replace with the temporary spare. If Michelin®
PAX System Tire/Self-Supporting Zero Pressure (ZP) tires are supplied as
original equipment, refer to the vehicle owner ’s manual for complete
details on the low tire pressure warning system designed to alert you in
the event of a low pressure condition.
NOTE:MICHELIN® SELF-SUPPORTING ZERO PRESSURE (ZP)
TIRES ARE TO BE USED ONLY IN CONJUNCTION WITH AN OPERA-
TIONAL, MICHELIN® APPROVED, LOW TIRE PRESSURE WARNING
SYSTEM. Otherwise, all provisions of the limited warranty are void. For
a list of approved systems, see your participating Michelin® tire retailer,
or call toll free:1-800-847-3435
NOTE:Some MICHELIN® Self-Supporting Zero Pressure (ZP) tires can
only be mounted on special SH-M (Symmetric Hump - Modified) wheels.
These tires bear the special SH-M designation, molded into the sidewall
of the tire, next to the ZP designation. DO NOT MOUNT A TIRE WITH
THE SH-M DESIGNATION ON THE SIDEWALL ON A STANDARD
WHEEL. DOING SO VOIDS THIS LIMITED WARRANTY AND COULD
CAUSE THE TIRE TO BECOME UNSERVICEABLE AT LOW OR ZERO
PRESSURE, RESULTING IN SERIOUS PERSONAL INJURY OR DEATH.
NOTE:MICHELIN® PAX® SYSTEM TIRES ARE TO BE USED ONLY
IN CONJUNCTION WITH AN OPERATIONAL, TIRE PRESSURE
MONITORING SYSTEM (TPMS), APPROVED BY THE VEHICLE
MANUFACTURER FOR USE WITH THE PAX SYSTEM. Otherwise, all
provisions of the limited warranty are void. For a list of approved
systems, see your authorized PAX System retailer, or call toll free:
1-877-PAX TIRE or 1-877-729-8473
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For all types of tires, consult your vehicle tire placard or owner ’s manual
for recommended operating pressures. If the tires are purchased as
replacement tires, operating instructions for the low pressure warning
system will be provided by the manufacturer of that system. Recom-
mended operating pressures will be provided by a participating Michelin
tire retailer for self supporting ZP tires. Recommended operating pres-
sure for PAX System Tires will be provided by a PAX System retailer.
These inflation pressures must be maintained as a minimum. However,
do not exceed the maximum pressure rating indicated on the tire
sidewall.
CHECK THE COLD INFLATION PRESSURES IN ALL YOUR TIRES,
INCLUDING THE SPARE, AT LEAST ONCE EACH MONTH
Failure to maintain correct inflation may result in improper vehicle
handling and may cause rapid and irregular tire wear, sudden tire
destruction, loss of vehicle control and serious personal injury. Therefore,
inflation pressures should be checked at least once each month and
always prior to long distance trips. This applies to all tires, including
sealant types, and Self-Supporting Zero Pressure (ZP) tires which are as
susceptible to losing air pressure as any other type of tire if not properly
maintained.
UNDERINFLATION
It is impossible to determine whether tires are properly inflated by
simply looking at them. It is almost impossible to “feel or hear” when a
tire is being run underinflated or nearly flat. Tires must be checked
monthly with a tire pressure gauge.
Pressures should be checked when tires are cold, in other words, before
they have been driven on. Driving, even for a short distance, causes tires
to heat up and air pressure to increase.
Checking pressure when tires are hot:
If pressures are checked after tires have been driven for more than three
minutes or more than one mile, (2 km) the tires become hot and the
pressures will increase by approximately 4 psi. Therefore when the tire
pressure is adjusted under these conditions, it should be increased to a
gauge reading of 4 psi greater than the recommended cold inflation
pressure.
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For Example Only:
Gauge reading of hot tire:......................................... 32 psi(220 kPa)
If recommended cold inflation pressure is:................. 30 psi(205 kPa)
Desired gauge reading of hot tire 30+4psi=...34 psi (205 + 30 = 235 kPa)
Therefore: add 2 psi...................................................................... (15 kPa)
Check cold pressure as soon as possible, preferably within 24 hours.
“Bleeding” air from hot tires could result in underinflation. Use an
accurate tire gauge to check pressures. Never allow children to inflate
or deflate tires.
FOR MICHELIN® PAX® SYSTEM TIRES/SELF-SUPPORTING ZERO
PRESSURE (ZP) TIRES CHECK INFLATION PRESSURES AS SOON
AS POSSIBLE FOLLOWING A LOW PRESSURE WARNING
The PAX® System requires a functioning, correctly calibrated on-board
vehicle tire pressure monitoring system (TPMS) to monitor the air
pressure and alert the driver when a low pressure event occurs. Be
certain to ensure that your vehicle’s Tire Pressure Monitoring System
(TPMS) is functioning and is correctly calibrated. Refer to your vehicle
owner ’s manual or your vehicle dealer.
Low pressure warning systems are designed to alert the driver to a low
air pressure situation in at least one tire on the vehicle. While your ZP
tires are designed to provide continued mobility in the event of an air
loss, the sooner you respond to a warning and take corrective action, the
greater the likelihood that the tire can be returned to service.
Always visually inspect your MICHELIN® PAX® System tire and
self-supporting tires and use a pressure gauge to check the air pressure
in all 4 tires following any low pressure warning. (Unless advised to do
otherwise by the manufacturer of your low pressure warning system.)
If the tire pressure is at or below 18 PSI, proceed to the nearest
Authorized PAX System Retailer for PAX tires or a participating Michelin
tire retailer for ZP tires (or a representative of your vehicle manufacturer
if advised to do so in your vehicle owner ’s manual) and have the tire
demounted and thoroughly inspected for possible internal damage.
If you are unable to see any damage to the tire, and the tire pressure is
more than 18 PSI, reinflate your tire to the proper air pressure. (See
instructions for checking pressures when tires are hot.) When tires
have cooled, check air pressure again. If any tire has lost more than
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5 PSI from the previous pressure check, have the tire inspected at once
by an authorized PAX System Retailer for PAX tires or a participating
Michelin tire retailer (or representative of your vehicle manufacturer if
your vehicle owner ’s manual so advises.) Failure to do so may cause
irreparable damage to the tire and result in sudden tire destruction and
personal injury.
TIRE PRESSURE MONITORING SYSTEMS (TPMS):
Your vehicle may be equipped with a Tire Pressure Monitoring System
(TPMS) that is designed to monitor the pressure of tires mounted on your
vehicle and sends a signal to the driver if a tire pressure falls below a
predetermined level. A TPMS should not replace monthly manual
pressure checks for all four (4) tires and the spare. We recommend that
you manually monitor and check tire pressure inflation with a pressure
gauge. Your tires should have the recommended pressure listed by your
vehicle’s manufacturer. This information can be found in the vehicle
owner ’s manual and often on a placard located in the vehicle’s door
jamb, inside the fuel hatch, or on the glove compartment door. If you
have a plus size fitment that requires a higher inflation pressure, your tire
pressure monitoring system will require re-calibration to new inflation
pressure. Refer to your tire dealer/installer of plus size tires for proper
inflation pressure.
We recommend checking air pressure once each month, and before a long
trip. Whether you have a full-sized or mini-spare, make sure that it is
properly inflated as well. If the TPMS generates improper monitoring or
signals we recommend that you consult your owner ’s manual provided
with your vehicle and follow-up with your vehicle’s manufacturer.
TIRE SPINNING
Do not spin wheels in excess of 35 mph (55 km/h) as indicated on the
speedometer. Excessive speed in a free-running, unloaded tire can cause
it to “explode” from centrifugal force. The energy released by such an
explosion is sufficient to cause serious physical injury or death. Never
allow anyone to stand near or behind the spinning tire.
When in mud, sand, snow, ice or other slippery conditions, do not engage
in excessive wheel spin. Accelerating the motor excessively, particularly
with automatic transmission vehicles, may cause a drive tire that has lost
traction to spin beyond its speed capability. This is also true when
balancing a drive tire/wheel assembly on the vehicle using the vehicle
engine to spin the tire/wheel assembly.
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HIGH SPEED DRIVING CAN BE DANGEROUS
Correct inflation pressure is especially important.However, at high
speeds, even with the correct inflation pressure, a road hazard, for
example is more difficult to avoid and if contact is made, has a greater
chance of causing tire damage than at a lower speed. Moreover, driving
at high speed reduces the reaction time available to avoid accidents and
bring your vehicle to a safe stop.If you see any damage to a tire or
wheel, replace it with the spare at once and visit a participating
Michelin Tire Retailer.
Exceeding the maximum speeds shown on the following page for each
type of MICHELIN® tire will cause the tire to build up excessive heat
which can cause tire damage that could result in sudden tire destruction
and rapid air loss. Failure to control a vehicle when one or more tires
experience a sudden air loss can lead to an accident.
In any case, you should not exceed reasonable speeds as indicated by
the legal limits and driving conditions.
SPEED RATINGS
Speed Symbols are shown on the sidewall of some MICHELIN® tires.
The following table shows the maximum speed corresponding to the
symbol.
*Some V (or VR) rated tires may have a speed capacity greater than
149 mph (240 km/h). Consult your participating Michelin® tire retailer
for maximum speed rating if your vehicle capability exceeds this speed.
**Z (or ZR) rated tires are designed to use on cars with maximum speed
capabilities in excess of 149 mph (240 km/h).
(W and Y speed ratings are subcategories of Z).
Consult your Michelin tire retailer for maximum speed capabilities. For
PAX® System Tires consult an authorized PAX System Tire Retailer.
Although a tire may be speed-rated, we do not endorse the operation of
any vehicle in an unsafe or unlawful manner. Speed ratings are based on
laboratory tests which relate to performance on the road, but are not
applicable if tires are underinflated, overloaded, worn out, damaged,
altered, improperly repaired or retreaded.
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Furthermore, a tire’s speed rating does not imply that vehicles can be
safely driven at the maximum speed for which the tire is rated,
particularly under adverse road and weather conditions or if the vehicle
has unusual characteristics.
Michelin® highway passenger tires that do not have a speed symbol on
the sidewall have a maximum speed rating of 105 mph (170 kph). Light
truck highway tires that do not have a speed symbol on the sidewall of
the tire have a maximum speed rating of 87 mph (140 kph).
MICHELIN® Winter tires that do not have a speed symbol on the
sidewall or tires with Q symbols have a speed rating of 100 mph
(160 km/h). Winter tires with a speed symbol have a maximum speed
rating in accordance with the symbol.
The speed and other ratings of retreaded tires are assigned by the
retreader and replace the original manufacturer ’s ratings.
IMPORTANT: In order to maintain the speed capability of the vehicle,
replacement tires must have speed ratings equal to or higher than those
fitted as original equipment (as indicated on the vehicle tire placard or
owner ’s manual). If tires with lower speed ratings are fitted, the vehicle’s
handling may be affected and the speed capability of the vehicle will be
lowered to the maximum speed capability of the replacement tires as
indicated in the following table.
REMEMBER...High speed driving can be dangerous and may damage
your tires.
AND...When driving at highway speeds, correct inflation pressure is
especially important.
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INSPECT YOUR TIRES, DO NOT DRIVE ON A DAMAGED TIRE
OR WHEEL
HAZARDS
Objects in the road, such as potholes, glass, metal, rocks, wood, debris
and the like, can damage a tire and should be safely avoided. Unavoid-
able contact with such objects should prompt a thorough tire inspection.
Anytime you see any damage to your tires or wheels, replace with the
spare at once and immediately visit any Michelin tire retailer. For PAX®
System Tires see an authorized PAX System tire retailer.
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IMPACT DAMAGE
A tire impacted by a road hazard (curb, pothole, debris) may be damaged
but not have visible signs of damage on its surface. A tire damaged by an
impact may sustain a sudden failure a day, week, or even months later.
You may not recall hitting an object that damaged or injured your tires.
Air loss, unusual tire wear, localized wear or vibrations can also be signs
of internal tire damage.
If you suspect any damage to your tire or wheel from an impact with a
curb, pothole, debris on the road or any other road hazard, or if you feel
or hear any unusual vibration, replace with a properly inflated spare at
once and immediately visit any qualified tire technician.
INSPECTION
When inspecting your tires, including the spare, check the air pressures.
If the pressure check indicates that one of your tires has lost pressure of
two pounds or more, look for signs of penetration, valve leakage or wheel
damage that may account for the air loss.
Always look for bulges, cracks, cuts, penetrations, and abnormal tire
wear, particularly on the edges of the tire tread, which may be caused
by misalignment or underinflation. If any such damage is found, the
tire must be inspected by any Michelin tire retailer at once. Use of a
damaged tire could result in tire destruction.
All tires will wear out faster when subjected to high speeds as well as
hard cornering, rapid starts, sudden stops, frequent driving on roads
which are in poor condition, and off road use. Roads with holes and rocks
or other objects can damage tires and cause misalignment of your vehicle.
When driving on such roads, drive carefully and slowly, and before
driving again at normal or highway speeds, examine your tires for any
damage, such as cuts, bulges, penetrations, unusual wear patterns, etc.
WEAR BARS
MICHELIN® tires contain “Wear-Bars” in the grooves of the tire tread
which show up when only 2/32 nds of an inch (1.6 mm) of tread is
remaining. At this stage, your tires must be replaced. Tires worn beyond
this stage are extremely dangerous.
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