Toro 74445 - Hydraulic Filter and Oil Replacement

Figure57
1.Cap3.Colduidlevel-full
2.Bafe4.Hotuidlevel-full
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—Changethe
hydrauliclter.
Every250hours—Changethe
hydraulicltersandhydraulicoil
whenusingMobil
®
1oil.
Every500hours—Changethe
hydraulicltersandhydraulicoil
whenusingToro
®
HYPR-OIL
™
500
hydraulicoil.
Usesummerlterabove32°F(0°C)
Usewinterlterbelow32°F(0°C)
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
Important:Donotsubstituteautomotiveoil
lterorseverehydraulicsystemdamagemay
result.
3.Placeadrainpanunderlter,removetheoldlter
andwipethelteradaptergasketsurfaceclean
(Figure58).
Figure58
1.Hydrauliclter
4.Applyathincoattotherubbergasketonthe
replacementlter(Figure59).
5.Installthereplacementhydrauliclterontothelter
adapter.Donottighten.
6.Fillthehydraulictankwithhydraulicuiduntilthe
uidoverowsthelterandthenturntheoillter
clockwiseuntiltherubbergasketcontactsthelter
adapter,thentightenthelteranadditional1/2turn
(Figure59).
7.Cleanupanyspilleduid.
8.Adduidtothecoldlevelofthebafeinthe
hydraulictank.
9.Starttheengineandletitrunforabouttwominutes
topurgeairfromthesystem.Stoptheengineand
checkforleaks.Ifoneorbothwheelswillnotdrive,
refertoBleedingHydraulicSystem.
10.Rechecktheuidlevelwhiletheuidiswarm.The
uidshouldbebetweencoldandhot.
11.Ifrequired,adduidtothehydraulictank.Donot
overll.
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