Toro Groundsmaster 4500-D Series User Manual

FilteringClosed−LoopTractionCircuit
Filteringofaclosed−loophydraulicsystemafteramajorcomponentfailure(e.g.
traction(piston)pumporfrontwheelmotor)isarequirementtopreventdebris
fromtransmittingthroughoutthesystem.Ifaclosed−loophydraulicsystem
lteringtoolisnotusedtoensuresystemcleanliness,repeatfailures,aswellas
subsequentdamagetootherhydrauliccomponentsintheaffectedsystem,will
occur.Toeffectivelyremovecontaminationfromclosed−looptractioncircuit,use
oftheTorohighowhydrauliclterandhydraulichosekitsarerecommended
(seeSpecialT ools(page2–16)).
1.Parkmachineonalevelsurfacewithenginestoppedandkeyremoved
fromignitionswitch.
2.Raiseandsupportmachinesoallwheelsareofftheground(seeJacking
Instructions(page1–7)).
Note:Iffrontwheelorrearaxlemotorwasreplaced,installhighowlterto
theinletofnewmotorinsteadoftothetractionpumptting.Thiswillprevent
systemcontaminationfromenteringanddamagingthenewmotor.
g308653
Figure95
1.Piston(traction)pump2.Leftsidetting
3.Thoroughlycleanjunctionofhydraulichoseandleftsidettingonbottom
ofpiston(traction)pump(Figure95).Disconnecthosefromleftsidepump
tting.
4.ConnectT orohighowhydrauliclterinseriesbetweenpistonpump
ttinganddisconnectedhose.Usehydraulichosekit(seeSpecialT ools
(page2–16))toconnectltertomachine.Makesurethatttingandhose
connectionsareproperlytightened.
IMPORTANT
Whenllinghydraulicreservoir,useonlyhydraulicuidsspecied
inOperator’sManual.Otheruidscouldcausesystemdamage.
5.Afterinstallinghighowltertomachine,checkandllhydraulicreservoir
withnewhydraulicoilasrequired.
6.Startengineandrunatidlespeed.Checkforanyhydraulicleakagefrom
lterandhoseconnections.Correctanyleaksbeforeproceeding.
Groundsmaster
®
4500-D/4700-D
Page5–93
HydraulicSystem:ServiceandRepairs
19245SLRevA

Toro Groundsmaster 4500-D Series Specifications

General

Brand	Toro
Model	Groundsmaster 4500-D Series
Category	Lawn Mower
Language	English