Toro 74269 - Hydraulic System Servicing Details; Replacing Hydraulic Filter and Oil

Figure75
1.Hotuidlevel-full2.Colduidlevel-full
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
•Ifhydraulicuidisinjectedintotheskin
itmustbesurgicallyremovedwithinafew
hoursbyadoctorfamiliarwiththistypeof
injury.Gangrenemayresultifthisisnot
done.
•Keepbodyandhandsawayfrompinhole
leaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulic
leaks.
•Safelyrelieveallpressureinthehydraulic
systembeforeperforminganyworkonthe
hydraulicsystem.
•Makesureallhydraulicuidhosesand
linesareingoodconditionandallhydraulic
connectionsandttingsaretightbefore
applyingpressuretohydraulicsystem.
ReplacingtheHydraulicFilterand
HydraulicOil
ServiceInterval:Aftertherst25hours
Every250hours—Changethe
hydrauliclterandhydraulicoilwhen
usingMobil
®
1oil.
Every500hours—Changethe
hydrauliclterandhydraulicoil
whenusingToro
®
HYPR-OIL
™
500
hydraulicoil.
Usesummerlterabove32°F(0°C)
Usewinterlterbelow32°F(0°C)
Note:Attheyearlyinterval,changethehydraulicoil
whentheoillterischanged.
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
Important:Donotsubstituteautomotiveoil
lterorseverehydraulicsystemdamagemay
result.
3.Placedrainpanunderlter,removetheoldlter
andwipethelteradaptergasketsurfaceclean
(
Figure76).
Figure76
1.Hydrauliclter
4.Applyathincoathydrouidtotherubbergasketon
thereplacementlter(Figure77).
5.Ifchangingtheoil,allowthehydraulicoiltodrain
fromthetankwhentheoillterisremoved.
6.Installthereplacementhydrauliclterontothelter
adapter.Donottighten.
7.Fillthehydraulictankwithhydraulicuiduntilthe
uidoverowsthelterandthenturntheoillter
clockwiseuntiltherubbergasketcontactsthelter
adapter,thentightenthelteranadditional1/2turn
(
Figure77).
8.Cleanupanyspilleduid.
9.Adduidtothecoldlevelofthebafeinthe
hydraulictank.
10.Starttheengineandletitrunforabouttwominutes
topurgeairfromthesystem.Stoptheengineand
checkforleaks.Ifoneorbothwheelswillnotdrive,
refertoBleedingHydraulicSystem.
11.Rechecktheuidlevelwhiletheuidiswarm.The
uidshouldbebetweencoldandhot.
12.Ifrequired,adduidtothehydraulictank.Donot
overll.
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