Toro 74020 - Hydraulic System Maintenance; Hydraulic System Safety; Hydraulic-Fluid Specifications

Note:Thewheelsshouldstopturningorslightly
creepinreverse.
Note:Youmayneedtoremovethe
motion-controlcovertogainaccess.
13.Shutoffthemachine.
14.Removethejumperwirefromthewireharness
andplugtheconnectorintotheseatswitch.
15.Removethejackstands.
16.Raisethemowerdeckandinstallthe
height-of-cutpin.
17.Checkandensurethatthemachinedoes
notcreepinneutralwiththeparkingbrake
disengaged.
HydraulicSystem
Maintenance
HydraulicSystemSafety
•Seekimmediatemedicalattentionifuidisinjected
intoskin.Injecteduidmustbesurgicallyremoved
withinafewhoursbyadoctor.
•Ensurethatallhydraulic-uidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompinhole
leaksornozzlesthatejecthigh-pressurehydraulic
uid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
Hydraulic-Fluid
Specications
HydraulicFluidType:T oro
®
HYPR-OIL
™
500
hydraulicuid
Important:Usethespecieduid.Otheruids
coulddamagethehydraulicsystem.
ZT4400HydrosHydraulicSystemCapacity(with
ltersremoved):7.57L(8USqt)
ZT5400HydrosHydraulicSystemCapacity(with
ltersremoved):9.46L(10USqt)
60