Toro 33518 - Drive System Maintenance

DriveSystem
Maintenance
CheckingtheAirPressure
intheTires
ServiceInterval:Every50hours
Note:Thesemi-pneumaticcastertiresdonotneed
tobeinated.
1.Shutofftheengine,engagetheparkingbrake,
removethekey,andwaitforallmovingpartsto
stopbeforeleavingtheoperatingposition.
2.Checkthepressureofthedrivetires.
3.Inatethedrivetiresto83to97kPa(12to14
psi).
CheckingtheWheelHub
Nuts
ServiceInterval:Yearly
Torquethewheelhubnuts(Figure43)to285to350
N∙m(210to260ft-lb).
Note:Donotuseanti-seizecompoundonthewheel
hub.
g026029
Figure43
1.Lugnut2.Hubnut
CheckingtheTorqueofthe
WheelLugNuts
ServiceInterval:Yearly
Torquethewheellugnuts(Figure43)to122to129
N∙m(90to95ft-lb).
AdjustingtheCasterPivot
BearingsPre-Load
Note:Ifyoudisassemblethecasterpivotbearings,
ensurethatthespring-discwashersareinstalledas
showninFigure44.
1.Removedustcapfromcasterhub(Figure44).
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Figure44
1.Dustcap
4.Spindle
2.Locknut
5.Casterhub
3.Spring-discwashers
2.Tightenthelocknutclockwiseuntilthe
spring-discwashersareat(Figure44).
3.Rotatethelocknutcounterclockwise1/4turn
(Figure44).
4.Installthedustcap(Figure44).
MaintainingtheChain
AdjustingtheJackshaft
Drive-ChainTension
1.Shutofftheengine,engagetheparkingbrake,
removethekey,andwaitforallmovingpartsto
stopbeforeleavingtheoperatingposition.
2.Lifttherearofthemachineandsupportitusing
jackstandsorequivalentsupport.
3.Checkthechainsonbothsidesofthemachine
forpropertension.
Note:Thechainsshouldmoveupanddown6
to12mm(1/4to1/2inch).
4.Ateachsideofthemachine,loosenthe3nuts
andboltsthatsecurethetransmissionmount
andtensionerplate,andthe2nutssecuringthe
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