Toro 74978 - Checking the Tire Pressure; Checking the Wheel Lug Nuts; Checking the Wheel Hub Slotted Nut

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Figure59
Leftcontrollevershown
1.Controllever3.Stopplate
2.Bolt
CheckingtheTirePressure
ServiceInterval:Every50hours/Monthly(whichever
comesrst)
Maintaintheairpressureinthereartiresat13psi(90kPa).
Uneventirepressurecancauseunevencut.Checkthetires
whentheyarecoldtogetthemostaccuratepressurereading.
Note:Thefronttiresaresemi-pneumatictiresanddonot
requireairpressuremaintenance.
Figure60
CheckingtheWheelLugNuts
Checkandtorquethewheellugnutsto90-95ft-lb(122-129
N-m).
CheckingtheWheelHub
SlottedNut
ServiceInterval:Aftertherst100hours
Every500hours
SeeFigure61todeterminewhichslottednuthasbeen
installedontheunit.
Figure61
1.StyleA(blacknish)3.StyleB(yellowzinc)
2..03inch(.76mm)4..24inch(6mm)
•StyleA(blacknish):
Torquetheslottednutto211-260ft-lb(286-352N-m).
Note:DoNotuseanti-seizeonwheelhub.
•StyleB(yellowzinc):
1.Removeanddiscardthecotterpin.
2.Torquetheslottednutto200ft-lb(271N-m).
3.Checkdistancefrombottomofslotinnuttoinside
edgeofhole.Twothreads(0.1inch)orlessshould
beshowing.
Figure62
1.0.1inchmax2.Nomorethantwothreads
(0.1inchmax)shouldbe
showinghere.
4.Ifmorethantwothreads(0.1inch)areshowing
removenutandinstallwasherbetweenhuband
nut.
5.Torquetheslottednutto200ft-lb(271N-m).
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