•Visuallyinspectthetireforcracksandcuts,replacingthetireincaseofbaddamage.SwellingorhighspotsTireWear,DamageMAINTENANCEANDADJUSTMENT117Asthetiretreadwearsdown,thetirebecomesmoresusceptibletopunctureandfailure.Anacceptedestimateisthat90%ofalltirefailuresoccurduringthelast10%oftreadlife(90%worn).Soitisfalseeconomyandunsafetousethetiresuntiltheyarebald.TireWearInspection•Measurethedepthofthetreadwithadepthgauge,andreplaceanytirethathasworndowntotheminimumallowabletreaddepth.A.TireDepthGaugeMinimumTreadDepthFrontRear—1mm(0.04in.)Under130km/h(80mph)Over130km/h(80mph)2mm(0.08in.)3mm(0.12in.)
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