Peterbilt 348 2017 - Page 355

TIRESANDWHEEL
1
TREAD
CONTACTWITH
ROAD
Proper-Ination:
thecorrectprole
forfullcontactwith
theroad.
2
TREAD
CONTACTWITH
ROAD
Under-Ination:
causesabnormal
tiredeection,which
buildsupexcessive
heat,runningthe
riskoffailure.It
alsocausesirregular
wear.
3
TREADCONTACT
WITHROAD
Over-Ination:
reducesthetread
contactareawith
theroadsurface,
concentratingallof
thevehicleweight
onthecenterofthe
tread.Thiscauses
prematurewearof
thetire.
OverloadedTires
Overloadingyourtruckisasdamaging
toyourtiresasunderination.The
followingchartshowshowneglector
deliberateabusecanaffectthelifeof
yourtires.
EFFECTOFLOADPRESSUREONTIRELIFE
VehicleLoadNormal
20%Over40%Over60%Over80%Over100%Over
TirePressureNormal
20%Low30%Low35%Low45%Low55%Low
ExpectedTotal
TireMileage
Normal
70%50%40%30%25%
(03/17)Y53-6060-1C15-145
5