Toro 25450W - Hydraulic System Maintenance; Servicing the Hydraulic System

HydraulicSystem
Maintenance
ServicingtheHydraulic
System
Themachinecomesfromthefactorywithafullhydraulic
uidreservoirthatcontainsapproximately182L(48US
gal)ofhigh-qualityhydraulicuid.Checkthelevelofthe
hydraulicuidbeforeyoustarttheenginefortherst
time,anddailythereafter.
UseToroPremiumAll-seasonHydraulicFluid(available
in5-gallonpailsor55-gallondrums.Seethepartscatalogor
anAuthorizedToroServiceDealerforpartnumbers).
IfTorohydraulicuidisnotavailable,youmayusean
equivalenthydraulicuid,providedthatitmeetsallthe
followingmaterialpropertiesandindustryspecications.Do
notuseasynthetichydraulicuid.Consultwithyour
lubricantdistributortoidentifyasatisfactoryproduct.
Note:Torodoesnotassumeresponsibilityfordamage
causedbyimpropersubstitutions,souseonlyproductsfrom
reputablemanufacturers.
HighViscosityIndex/LowPourPoint
Anti-wearHydraulicFluid,ISOVG46
MaterialProperties:
St@40°C(104°F):44to48 Viscosity,ASTMD445
St@100°C(212°F):7.9to8.5
ViscosityIndexASTM
D2270
140to160
PourPoint,ASTMD97-37°C(-34°F)to-45°C(-49°F)
FZG,Failstage
11orbetter
Watercontent(newuid)500ppm(maximum)
IndustrySpecications:VickersI-286-S(QualityLevel),
VickersM-2950-S(Quality
Level),DenisonHF-0
Note:Manybrandsofhydraulicuidsarealmostcolorless,
makingitdifculttospotleaks.Areddyeadditiveforthe
hydraulicsystemoilisavailablein20ml(0.68oz)bottles.
Onebottleissufcientfor15.1to22.7L(4.0to6.0USgal)
ofhydraulicoil.Orderpartno.44-2500fromanAuthorized
ToroServiceDealer.
Note:Ifambientoperatingtemperaturesexceed110°F,
contactToroforuidrecommendations.
ChangingtheHydraulicFluidand
ReplacingtheBreather
ServiceInterval:Every1,000hours
Thecapacityofthehydraulic-uidreservoir:150L(40
USgallons)
Thecapacityofthehydraulic-uidsystem:182L(48
USgallons)
DrainingtheHydraulicReservoir
Note:Drainthehydraulicuidreservoirwhentheuidis
warm,ifpossible.
1.Removetherightsidepanel;refertoRemovingthe
SidePanels(page45).
2.RotatethebatterydisconnecttotheOffposition
(Figure107).
Figure107
1.Fillcap(hydraulictank)
4.Pipecoupling
2.Fillerneck(hydraulictank)
5.Batterydisconnectswitch
(Offposition)
3.Breather
3.Removethellcapfromthellerneckofthetank
(Figure107).
4.Attheforwardsideoftheenginecompartmentpanel,
removethebreatherfromthepipecouplingbyrotating
thebreathercounterclockwise(Figure107).
Note:Discardtheoldbreather.
5.Installanewbreatherintothepipecouplinghandtight
(Figure107).
6.Placeacontainerthatcanholdaminimumof190L
(50USgal)underthehydraulicreservoirdrainplug
(Figure108).
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