Toro 74274 - Hydraulic System Maintenance; Bleeding the Hydraulic System; Checking the Hydraulic Hoses; Setting the Hydraulic Pump Neutral Position

adapter,thentightenthelteranadditional1/2turn
(Figure69).
10.Cleanupanyspilleduid.
11.Adduidtothecoldlevelofthebafeinthe
hydraulictank.
12.Starttheengineandletitrunforabouttwominutes
topurgeairfromthesystem.Stoptheengineand
checkforleaks.Ifoneorbothwheelswillnotdrive,
refertoBleedingHydraulicSystem.
13.Rechecktheuidlevelwhiletheuidiswarm.The
uidshouldbebetweencoldandhot.
14.Ifrequired,adduidtothehydraulictank.Donot
overll.
G001043
1
2
3
Figure69
1.Hydrauliclter
3.Adapter
2.Gasket
BleedingtheHydraulicSystem
Thetractionsystemisselfbleeding,however,itmaybe
necessarytobleedthesystemifuidischangedorafter
workisperformedonthesystem.
1.Raiserearofthemachinesowheelsareoffthe
groundandsupportwithjackstands.
2.Starttheengineandrunatlowidlespeed.Engage
theleverandtractionononesideandspinthewheel
byhand.
3.Whenthewheelbeginstospinonitsown,keepit
engageduntilwheeldrivessmoothly.(minimum
2minutes)
4.Checkhydraulicuidlevelandaddasrequiredto
maintainproperlevel.
5.Repeatthisprocedureontheoppositewheel.
CheckingtheHydraulicHoses
ServiceInterval:Every100hours
Afterevery100operatinghours,checkthehydraulic
hosesforleaks,loosettings,kinkedlines,loose
mountingsupports,wear,weatherandchemical
deterioration.Makenecessaryrepairsbeforeoperating.
Note:Keepareasaroundthehydraulicsystemclean
fromgrassanddebrisbuildup.
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.
SettingtheHydraulicPump
NeutralPosition
Note:Adjustthehandleneutralrst.Thatneedstobe
correctbeforethefollowingadjustmentcanbemade.
Thisadjustmentmustbemadewithdrivewheelsturning.
Mechanicalorhydraulicjacksmayfailto
supportmachineandcauseaseriousinjury.
•Usejackstandwhensupportingmachine.
•Donotusehydraulicjacks.
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