Toro 31222 - Hydraulic System Maintenance; Checking the Hydraulic System; Changing the Hydraulic Oil and Filter

HydraulicSystem
Maintenance
Thereservoirislledatthefactorywithapproximately17liters
(18quarts)ofhighqualitytractortransmission/hydraulic
uid.Therecommendedreplacementuidisasfollows:
ToroPremiumTransmission/HydraulicTractorFluid
(Availablein5gallonpailsor55gallondrums.Seeparts
catalogorT orodistributorforpartnumbers.)
Alternateuids:IftheTorouidisnotavailable,Mobil®424
hydraulicuidmaybeused.
Note:Torowillnotassumeresponsibilityfordamagecaused
byimpropersubstitutions.
Note:Manyhydraulicuidsarealmostcolorless,makingit
difculttospotleaks.Areddyeadditiveforthehydraulic
systemoilisavailablein20ml(2/3oz.)bottles.Onebottleis
sufcientfor15-221iters(4-6gallons)ofhydraulicoil.Order
partnumber44-2500fromyourauthorizedTorodistributor.
CheckingtheHydraulic
System
ServiceInterval:Beforeeachuseordaily
Checkthelevelofthehydraulicuidbeforetheengineisrst
startedanddailythereafter.
1.Positionthemachineonalevelsurface.Releasethe
tractionpedaltotheneutralpositionandstartthe
engine.RunengineatlowestpossibleRPMtopurge
thesystemofair.DonotengagethePTO.Raise
thedecktoextendliftcylinders,stoptheengine,and
removethekey.
2.Removethehydraulicllcap(Figure53)fromller
neck.
3.Removethedipstickandwipeitwithacleanrag
(Figure53).
4.Screwthedipstickallthewayintothellerneck;then
removeitandchecklevelofuid(Figure53).
Iflevelisnotwithinnotchedareaofthedipstick,add
enoughhighqualityhydraulicuidtoraiselevelto
withinthenotchedarea.Donotoverll.
5.Replacethedipstickandthreadthellcapnger-tight
ontollerneck.
6.Checkallhosesandttingsforleaks.
Figure53
1.Dipstick
ChangingtheHydraulicOil
AndFilter
ServiceInterval:Aftertherst200hours
Every800hours
1.DisengagethePTO,releasethetractionpedaltothe
neutralpositionandsettheparkingbrake.
2.MovethethrottlelevertotheSlowposition,stopthe
engine,removethekey,andwaitforallmovingpartsto
stopbeforeleavingtheoperatingposition.
3.Placealargepanunderthehydraulicreservoirand
transmissioncaseandremovetheplugs,drainingallof
thehydraulicuid(
Figure54).
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