Toro 74978 - Page 54

ReplacingtheHydraulicFiltersand
HydraulicOil
ServiceInterval:Aftertherst250hours—Changethe
hydraulicltersandhydraulicoilwhen
usinganytypeofoil.
Every250hours—Changethehydraulicltersand
hydraulicoilwhenusingMobil
®
1oil(moreoftenin
dirtyordustyconditions).
Every500hours—Changethehydraulicltersand
hydraulicoilwhenusingToro
®
HYPR-OIL
™
500
hydraulicoil(moreoftenindirtyordustyconditions).
Toreplacethehydraulicoil,theltersneedtoberemoved.
Replacebothatthesametime.Refertotheoilspecications
underServicingtheHydraulicSystemforthecorrectoil.
1.Disengagethebladecontrolswitch(PTO),movethe
motioncontrolleverstotheneutrallockedposition
andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Raisethemachineandsupportitwithjackstands
(
Figure83).
Figure83
1.Jackstands
4.Removeboththemowerbeltandthepumpdrivebelt.
Thiswillpreventoilgettingonthebelts.RefertoBelts
intheMaintenanceSection.
5.Placeadrainpanunderthelter,removetheoldlter
andwipethesurfaceclean(
Figure84).
G008968
1
2
Figure84
BottomViewofMachine
1.Filterlocations
2.Hydrauliclter
6.Applyathincoatofhydraulicoiltotherubbergasket
onthereplacementlter(Figure84).
7.Installthereplacementhydrauliclter.
8.Installthepumpdrivebeltandthemowerbelt.
9.Removethejackstandsandlowerthemachine
(Figure83).
10.Addoiltothehydraulicreservoirandcheckforany
leaks.
11.Cleanupanyspilledoil.
12.Starttheengineandletitrunforabouttwominutesto
purgeairfromthesystem.Stoptheengineandcheck
forleaks.
13.Checktheoillevelwhiletheoiliscold.
14.Ifrequired,addoiltothehydraulicreservoir.Donot
overll.
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