ReplacingtheHydraulicFluidand
Filters
ServiceInterval:Aftertherst250hours—Change
thehydraulicltersandhydraulic
uidwhenusinganytypeofuid.
Every250hours—Changethehydrauliclters
andhydraulicuidwhenusingMobil
®
1uid
(moreoftenindirtyordustyconditions).
Every500hours—Changethehydraulic
ltersandhydraulicuidwhenusingT oro
®
HYPR-OIL
™
500hydraulicuid(moreoftenin
dirtyordustyconditions).
Toreplacethehydraulicuid,removethelters.
Replacebothatthesametime;refertoServicingthe
HydraulicSystem(page60)fortheuidspecications.
1.Disengagetheblade-controlswitch(PTO),move
themotion-controlleverstotheNEUTRAL-LOCK
position,andengagetheparkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Raisethemachineandsupportitwithjack
stands(Figure89).
g008970
Figure89
1.Jackstands
4.Removeboththemowerbeltandthepump-drive
belt;refertoServicingtheHydraulicSystem
(page60)andReplacingtheHydraulic
Pump-DriveBelt(page57).
Note:Thispreventsuidfromgettingonthe
belts.
5.Placeadrainpanunderthelter,removethe
oldlter,andwipethesurfaceclean(Figure90).
g008968
Figure90
Bottomviewofthemachine
1.Filterlocations
2.Hydrauliclter
6.Applyathincoatofhydraulicuidtotherubber
gasketonthereplacementlter(Figure90).
7.Installthereplacementhydrauliclter.
8.Installthepump-drivebeltandthemowerbelt.
9.Removethejackstandsandlowerthemachine
(Figure89).
10.Adduidtothehydraulicreservoirandcheck
foranyleaks.
11.Cleanupanyspilleduid.
12.Starttheengineandletitrunforabout2minutes
topurgeairfromthesystem.
13.Shutofftheengineandcheckforleaks.
14.Checktheuidlevelwhiletheuidiscold.
15.Ifrequired,addoiltothehydraulicreservoir.
Note:Donotoverll.
62