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This type of tire utilizes steel cordsin the sidewalls. As such, theycannot be treated like normal lighttruck tires. Tire service, includingadjusting tire pressure, must beperformed by personnel trained,supervised and equippedaccording to Federal OccupationalSafety and Health Administrationregulations. For example, during
any procedure involving tireinflation, the technician orindividual must utilize a remoteinflation device, and ensure thatall persons are clear of thetrajectory area.
WARNING: Always inflatesteel carcass tires with a remoteair fill with the person inflatingstanding at a minimum of 12 ft(3.66 m) away from the wheeland tire assembly.
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INSPECTING THE TIRE FOR
WEAR
When the tread is worn down to2/32 inch (1.6 mm), tires must bereplaced to help prevent yourvehicle from skidding andhydroplaning. Built-in treadwearindicators, or wear bars, whichlook like narrow strips of smoothrubber across the tread willappear on the tire when the treadis worn down to 2/32 inch (1.6mm).
When the tire tread wears downto the same height as these wearbars, the tire is worn out and mustbe replaced.
The tires should also be balancedperiodically. An unbalanced tireand wheel assembly may result inirregular tire wear.
Periodically inspect the tire treadsfor uneven or excessive wear andremove objects such as stones,nails or glass that may be wedgedin the tread grooves.
INSPECTING THE TIRE FOR
DAMAGE
Inspect the tire sidewalls forcracking, cuts, bruises and othersigns of damage or excessivewear. If internal damage to the tireis suspected, have the tiredismounted and inspected in caseit needs to be repaired or replaced.For your safety, tires that aredamaged or show signs ofexcessive wear should not be usedbecause they are more likely toblow out or fail.
Periodically inspect the tire treadsand sidewalls for damage, suchas bulges in the tread or sidewalls,cracks in the tread groove andseparation in the tread or sidewall.If damage is observed orsuspected, have the tire inspectedby a tire professional.
Tires can be damaged duringoff-road use, so inspection afteroff-road use is alsorecommended.
Safety Practices
WARNING: If your vehicleis stuck in snow, mud or sand, do
not rapidly spin the tires;spinning the tires can tear thetire and cause an explosion. Atire can explode in as little asthree to five seconds.
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WARNING: Do not spin thewheels at over 34 mph(55 km/h). The tires may fail andinjure a passenger or bystander.
HIGH SPEED DRIVING CAN BEDANGEROUS
Correct inflation pressure isespecially important. However, athigh speeds, even with the correctinflation pressure, a road hazardfor example is more difficult toavoid and if contact is made, hasa greater chance of causing tiredamage than at a lower speed.Moreover, driving at high speedreduces the reaction timeavailable to avoid accidents andbring your vehicle to a safe stop.
If you see any damage to a tire orwheel, replace it with the spare atonce and visit a participating TireRetailer.
Exceeding the maximum speedsshown on the following page foreach type of tire will cause the tireto build up excessive heat whichcan cause tire damage that couldresult in sudden tire destructionand rapid air loss. Failure tocontrol a vehicle when one ormore tires experience a sudden airloss can lead to an accident.
In any case, you should notexceed reasonable speeds asindicated by the legal limitsand driving conditions.
DO NOT OVERLOAD: DRIVINGON ANY OVERLOADED TIRE ISDANGEROUS
The maximum load rating of yourtires is molded on the tire sidewall.Do not exceed this rating. Followthe loading instructions of themanufacturer of your vehicle andthis will ensure that your tires arenot overloaded. Tires which areloaded beyond their maximumallowable loads for the particularapplication will build up excessiveheat that may result in sudden tiredestruction. Do not exceed thegross axle weight rating for anyaxle on your vehicle.
TIRE ALTERATIONS
Do not make or allow to be made
any alterations on your tires.Alterations may prevent properperformance, leading to tiredamage which can result in anaccident. Tires which becomeunserviceable due to alterationssuch as truing, whitewall inlays,addition of balancing or sealantliquids, or the use of tire dressingcontaining petroleum distillatesare excluded from warrantycoverage.
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REPAIRS - WHEREVERPOSSIBLE, SEE YOUR TIRERETAILER AT ONCE
If any tire sustains a puncture,have the tire demounted andthoroughly inspected by a tireretailer for possible damage thatmay have occurred. A tread areapuncture in any passenger or lighttruck tire can be repaired providedthat the puncture hole is not morethan 1/4” in diameter, not morethan one radial cable per casingply is damaged, and the tire hasnot been damaged further by thepuncturing object or by runningunderinflated. Tire puncturesconsistent with these guidelinesshould only be repaired byfollowing the US TireManufacturers Association(USTMA) recommended repairprocedures. Plug-only repairsdone on-the-wheel are consideredimproper and therefore, notrecommended. Such repairs arenot reliable and may cause furtherdamage to the tire.
STORAGE
Tires contain waxes andemollients to protect their outersurfaces from ozone and weatherchecking. As the tire rolls andflexes, the waxes and emollientscontinually migrate to the surface,replenishing this protectionthroughout the normal use of thetire. Consequently, when tires situnused for long periods of time (amonth or more) their surfaces
become dry and more susceptibleto ozone and weather checkingand the casing becomessusceptible to flat spotting.Forthis reason, tires should alwaysbe stored in a cool, dry, clean,indoor environment. If storageis for one month or more,eliminate the weight from thetires by raising the vehicle or byremoving the tires from thevehicle. Failure to store tires inaccordance with theseinstructions could result indamage to your tires orpremature aging of the tiresand sudden tire failure.
When tires are stored, be sure theyare placed away from sources ofheat and ozone such as directsunlight, hot pipes and electricgenerators. Be sure that surfaceson which tires are stored are cleanand free from grease, gasoline orother substances, which coulddeteriorate the rubber. Failure tostore tires in accordance withthese instructions could result indamage to your tires or prematureaging of the tires and sudden tirefailure.
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FOLLOW THESE MOUNTINGRECOMMENDATIONS
Tire changing can be dangerousand must be done byprofessionally trained personsusing proper tools andprocedures as specified by theUS Tire ManufacturersAssociation (USTMA). Singleor dual assemblies must becompletely deflated beforedemounting.
Your tires should be mounted onwheels of correct size and typeand which are in good, cleancondition. Wheels that are bent,chipped, rusted (steel wheels) orcorroded (alloy wheels) maycause tire damage. The inside ofthe tire must be free from foreignmaterial. Have your retailer checkthe wheels before mounting newtires. Mismatched tires and rimscan explode during mounting.Also, mismatched tires and rimscan result in dangerous tire failureon the road. If a tire is mounted byerror on the wrong-sized rim, donot remount it on the proper rim -scrap it. It may have beendamaged internally (which is notexternally visible) by having beendangerously stretched and couldfail on the highway.
Old valves may leak. When newtubeless tires are mounted,have new valves of the correcttype installed. Tubeless tiresmust only be mounted onwheels designed for tubelesstires i.e., wheels which havesafety humps or ledges.
It is recommended that you haveyour tires and wheels balanced.Tires and wheels, which are notbalanced, may cause steeringdifficulties, a bumpy ride, andirregular tire wear.
Be sure that all your valveshave suitable valve caps. Thevalve cap is the primary sealagainst air loss.
TEMPORARY SPARE TIRES
When using any temporary sparetire, be sure to follow the vehiclemanufacturer’s instructions.
REMEMBER... TO AVOIDDAMAGE TO YOUR TIRES ANDPOSSIBLE ACCIDENT:
•CHECK TIRE PRESSURE ATLEAST ONCE EACH MONTHWHEN TIRES ARE COLD ANDBEFORE LONG TRIPS.
•DO NOTUNDERINFLATE/OVERINFLATE.
•DO NOT OVERLOAD.
•DRIVE AT MODERATESPEEDS, OBSERVE LEGALLIMITS.
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•AVOID DRIVING OVERPOTHOLES, OBSTACLES,CURBS OR EDGES OFPAVEMENT.
•AVOID EXCESSIVE WHEELSPINNING.
•IF YOU SEE ANY DAMAGE TOA TIRE, REPLACE WITH THESPARE AND VISIT ANYAUTHORIZED RETAILER ATONCE.
•IF YOU HAVE ANYQUESTIONS, CONTACT YOURAUTHORIZED RETAILER.
Highway Hazards
No matter how carefully you drive,there is always the possibility thatyou could eventually have a flattire on the highway. Drive slowly
to the closest safe area out oftraffic. This could further damagethe flat tire, but your safety ismore important.
If you feel a sudden vibration orride disturbance while driving, oryou suspect your tire or vehiclehas been damaged, immediatelyreduce your speed. Drive withcaution until you can safely pulloff the road. Stop and inspect thetires for damage. If a tire isunder-inflated or damaged,deflate it, remove the wheel andreplace it with your spare tire andwheel. If you cannot detect acause, have the vehicle towed tothe nearest repair facility or tire
dealer to have the vehicleinspected.
Tire and Wheel Alignment
A bad jolt from hitting a curb orpothole can cause the front endof your vehicle to becomemisaligned or cause damage toyour tires. If your vehicle seems topull to one side when you aredriving, the wheels could be out ofalignment. Have an authorizeddealer check the wheel alignmentperiodically.
Wheel misalignment in the frontor the rear can cause uneven andrapid treadwear of your tires andshould be corrected by anauthorized dealer.
INSPECTING THE WHEEL
VALVE STEMS
Check the valve stems for holes,cracks, or cuts that may permit airleakage and replace the valvestem if damaged.
Note:A new valve stem (includingnew nut, new washer & new screw)must be installed whenever a newtire or wheel is installed.
TIRE ROTATION
WARNING: If the tire labelshows different tire pressures forthe front and rear tires and thevehicle has a tire pressuremonitoring system, then youneed to update the settings forthe system sensors. Always
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perform the system resetprocedure after tire rotation. Ifyou do not reset the system, itmay not provide a low tirepressure warning whennecessary.
Rotating your tires at therecommended interval will helpyour tires wear more evenly,providing better tire performanceand longer tire life.
Note:If your tires show any unevenwear have the alignment checkedby an authorized dealer beforerotating tires.
Note:If you have a dissimilar sparewheel and tire assembly, it isintended for temporary use onlyand should not be used in a tirerotation.
Note:After having your tiresrotated, inflation pressure must bechecked and adjusted to thevehicle requirements.
Tire Rotation Diagram
Follow the diagram indicating thecorrect tire locations for rotatingthe tires.
Rear-wheel drive vehicles andfour-wheel drive vehicles (fronttires at left of diagram).
Dual rear wheel drive vehicle - six
tire rotation (front tires at top ofdiagram).
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If your vehicle is equipped withdual rear wheels it isrecommended that the front andrear tires (in pairs) be rotated onlyside to side. We do notrecommend splitting up the dualrear wheels. Rotate them side toside as a set. After tire rotation,inflation pressures must beadjusted for the tires' newpositions in accordance withvehicle requirements.
Note:When installing 17-inch dualrear wheels, align the valve stemsfacing each other.
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