Toro 30308 - Service and Repairs; General Precautions for Removing and Installing the Hydraulic System Components

ServiceandRepairs
GeneralPrecautionsforRemovingandInstallingtheHydraulic
SystemComponents
BeforeRepairingorReplacingtheComponents
1.Beforeremovinganypartsfromthehydraulicsystem,parkthemachineon
alevelsurface,lowerthecuttingdeck,shutofftheengine,settheparking
brake,andremovethekeyfromthekeyswitch.
2.Cleanthemachinebeforeyoudisconnect,remove,ordisassemblethe
hydrauliccomponents.
Note:Cleanlinessisnecessarywheneveryouworkonthehydraulic
equipment.Ensurethatyoucleanthehydrauliccomponents,hoses,
connections,andttings.
3.Labelallthedisconnectedhydrauliclinesandhosesforproperinstallation
afterrepairsarecompleted.
4.Notethepositionofthehydraulicttings(especiallyelbowttings)onthe
hydrauliccomponentsbeforeremoval.
Note:Marktheparts,ifnecessarybeforeremovalandensurethattheyare
alignedproperlywheninstallingthehydraulicttings,hoses,andtubes.
CAUTION
Beforeopeningthehydraulicsystem,operateallthehydraulic
controlstoreleasesystempressureandavoidinjuryfromthe
pressurizedhydraulicuid;refertoReleasingPressurefromthe
HydraulicSystem(page5–6).
5.Thehydraulicuidmaybehot.Becarefulwhenyouloosenandremove
thehydraulicsystemcomponents.
6.Installcleancapsorplugsonthehydrauliclines,hydraulicttings,and
componentsthatareleftopenorexposedtopreventhydraulicsystem
contamination.Captheopeningassoonasthelineorportisexposed.
AfterRepairingorReplacingtheComponents
1.Checkthehydraulic-uidlevelinthehydraulictankandaddcorrectquantity
ofuidifnecessary.Usethehydraulicuidsthatarespeciedinthe
Operator'sManual.
IMPORTANT
Drainandllthehydraulictankandchangetheoillterifthe
componentfailureissevereorthesystemiscontaminated;referto
FlushingtheHydraulicSystem(page5–80).
2.Ifacomponentfailureoccurredintheclosed-looptractioncircuit(e.g.,
hydraulicpumporhydraulicmotor),lteringthetractioncircuitisnecessary;
refertoFilteringtheClosed-LoopTractionCircuit(MachineSerialNumber
above316000000)(page5–82).
3.LubricatetheO-ringsandsealswithcleanhydraulicuidbeforeinstalling
thehydrauliccomponents.
Groundsmaster
®
3280-D/3320
Page5–77
HydraulicSystem:ServiceandRepairs
05138SLRevB