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6·68CHASSIS

TIREANDWHEEL

TIREREMOVAL

Themostcriticalfactorofatubelesstireisthesealbetweenthewheelrimandthetirebead.Forthisreason,itisrecommendedtouseatirechangerthatcansatisfythissealingrequirementandcanmaketheoperationefficientaswellasfunctional.

Foroperatingprocedures,refertotheinstructionssuppliedbythetirechangermanufacturer.

NOTE:

Whenremovingthetireinthecaseofrepairorinspection,markthetirewithachalktoindicatethetirepositionrelativetothevalveposition.

Eventhoughthetireisrefittedtotheoriginalpositionafterrepair•ingpuncture,thetiremayhavetobebalancedagainsincesucharepaircancauseimbalance.

Inspection

WHEELINSPECTION

Wipethewheelcleanandcheckforthefollowing:

•Distortionandcrack

•Nickorscratchonbead

•Wheelrimrunout(c:::::T"6-13)

TIREINSPECTION

Tiremustbecheckedforthefollowingpoints:

•Nickandruptureonsidewall

•Threadremainingdepth(c:::::T"2-25)

•Separationofcord

•Abnormal,unevenwearontread

•Surfacedamageonbead

•Localizedtreadwearduetoskidding(Flatspot)

•Abnormalconditionofinnerliner

Valveinspection

Inspectthevalveafterthetireisremovedfromtherim.Replacethevalvewithanewoneifthesealrubberispeelingorhasdam•age.

NOTE:

Iftheexternalappearanceofthevalveshowsnoabnormalcon•

dition,removingofthevalveisnotnecessary.

Inspectthevalvecore.

Ifthesealhasabnormaldeformation,replacethevalvewithanewone.

Valveinstallation

Anydustorrustaroundthevalveholemustbecleanedoff.Theninstallthevalveintherim.

NOTE:

Toproperlyinstallthevalveintothevalvehole,applyaspecialtirelubricantorneutralsoapyliquidtothevalve.

ACAUTIONI

Becarefulnottodamagethelipofvalve.

TIREINSTALLATION

•Applytirelubricanttothetirebead.

•Wheninstallingthetireontothewheel,observethefollowingpoints.

IACAUTIONI

Donotreusethevalvewhichhasbeenonceremoved.

IACAUTIONI

Neveruseoil,greaseorgasolineonthetirebeadinplaceoftirelubricant.

Seal

Wheel

6-70CHASSIS

•Wheninstallingthetire,thearrowG)onthesidewallshouldpointtothedirectionofwheelrotation.

•Alignthechalkmarkputonthetireatthetimeofremovalwith

_{thevalveposition.}

•Forinstallationprocedureoftireontothewheel,followthein•

structionsgivenbythetirechangermanufacturer.

•Bouncethetireseveraltimeswhilerotating.Thismakesthetirebeadexpandoutwardtocontactthewheel,therebyfacilitatingairinflation.

•Pumpupthetirewithair.

AWARNING

*Donotinflatethetiretomorethan400kPa(4.0kgf/cm2).Ifinflatedbeyondthislimit,thetirecanburstandpossiblycauseinjury.Donotstanddirectlyoverthetirewhileinflating.

_{*Inthecaseofpresetpressureairinflater,payspecial}

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careforthesetpressureadjustment.

•Inthiscondition,checkthe"rimline"castonthetiresidewalls.Thelinemustbeequidistantfromthewheelrimallaround.Ifthedistancebetweentherimlineandwheelrimvaries,thisindicatesthatthebeadisnotproperlyseated.Ifthisisthecase,deflatethetirecompletelyandunseatthebeadforbothsides.Coatthebeadwithlubricantandfitthetireagain.

•Whenthebeadhasbeenfittedproperly,inflateairandadjust

thepressuretospecification.

•Asnecessary,adjustthetirebalance.

IACAUTIONI

Donotrunwitharepairedtireatahighspeed.

~Coldinflationtirepressure

Soloriding:Front:250kPa(2.50kgf/cm2,36psi)Rear:250kPa(2.50kgf/cm2,36psi)

Dualriding:Front:250kPa(2.50kgf/cm2,36psi)Rear:250kPa(2.50kgf/cm2,36psi)

BALANCERWEIGHT

•Wheninstallingthebalancerweightstofrontwheel,setthetwobalancerweightsonbothsidesofwheelrim.

IACAUTIONI

Weightdifferencebetweenthetwobalancerweightsmustbelessthan10g.

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