Toro 30488 - Drive System Maintenance; Adjusting the Tracking; Checking the Tire Pressure; Replacing the Caster-Wheel-Fork Bushings

DriveSystem
Maintenance
AdjustingtheTracking
Ifthemachinedoesnottrackstraight,adjustmentisrequired.
1.Checkthereartirepressure;refertoCheckingtheTire
Pressure(page34).
2.Loosenthewingnutsontherightcontrolrod,and
rotatetheturnbuckleinorouttoensurethatthe
rightsidecontrolleveriscenteredintheneutral-lock
position.
3.Securetheturnbuckleinpositionwiththewingnuts
(Figure42).
4.Loosenthewingnutsontheleftcontrolrodandrotate
theturnbuckleinorouttochangethetracking.
5.Securetheturnbuckleinpositionwiththewingnuts
(Figure42).
6.Checkforpropertracking.
7.Adjusttheleftcontrolrodifachangeisneeded.
Figure42
1.Turnbuckle
3.Topwingnut(lefthand
threaded)
2.Bottomwingnut
CheckingtheTirePressure
ServiceInterval:Every50hours/Monthly(whichever
comesrst)
Checkthepressureatthevalvestem(Figure43).
Maintaintheairpressureinthereartiresat83to97kPa(12
to14psi).Uneventirepressurecancauseanunevencut.
Note:Thefronttiresaresemi-pneumatictiresanddonot
requireair-pressuremaintenance.
Figure43
Replacingthe
Caster-Wheel-ForkBushings
Thecaster-wheelforksaremountedinbushingspressedinto
thetopandbottomofthecarrierframemounting-pivot
tubes.Tocheckthebushings,movethecasterforksbackand
forthandside-to-side.Ifacasterforkisloose,thebushings
arewornandmustbereplaced.
1.Raisethecuttingunitsothecasterwheelsareoffthe
oor,thensupportthefrontofthemowerwithjack
stands.
2.Removethelockingpinandspacer(s)fromthetopof
thecaster-wheelfork(Figure44).
Figure44
1.Lockingpin
3.Carrierframepivottube
2.Spacers4.Caster-wheelfork
3.Pullthecaster-wheelforkoutofthemountingtube,
leavingthespacer(s)onthebottomofthefork.
34