Toro 74449 - Drive System Maintenance

DriveSystem
Maintenance
AdjustingtheTracking
Note:Determinetheleftandrightsidesofthemachine
fromthenormaloperatingposition.
Themachinehasaknobforadjustingthetracking
locatedundertheseat.
Important:Adjustthehandleneutralandhydraulic
pumpneutralbeforeadjustingthetracking.Refer
toAdjustingtheHandleNeutralinControlsSystem
Maintenance,page38andAdjustingtheHydraulic
PumpNeutralinHydraulicSystemMaintenance,
page39.
1.Pushbothcontrolleversforwardthesamedistance.
2.Checkifthemachinepullstooneside.Ifitdoes,
stopthemachineandsettheparkingbrake.
3.Unlatchtheseatandtilttheseatforwardtoaccess
thetrackingknob.
4.Tomakethemachinegoright,turntheknobtowards
theright-sideofthemachine.RefertoFigure38.
5.Tomakethemachinegoleft,turntheknobtowards
theleft-sideofthemachine.RefertoFigure38.
6.Repeatadjustmentuntilthetrackingiscorrect.
Figure38
1.Pumprod3.Trackingknob
2.Turnthiswaytotrackleft
4.Turnthiswaytotrackright
CheckingtheTirePressure
ServiceInterval:Every50hours/Monthly(whichever
comesrst)
Checkthepressureatthevalvestem(Figure39).
Maintaintheairpressureinthefrontandreartiresat
13psi(90kPa).Uneventirepressurecancauseuneven
cut.Checkthetireswhentheyarecoldtogetthemost
accuratepressurereading.
Figure39
CheckingtheWheelHub
SlottedNut
ServiceInterval:Every100hours
Theslottednutneedstobetorquedto125ft-lb
(170N•m).
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethecotterpin.
4.Torquetheslottednutto125ft-lb(170N•m)
(Figure40).
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