Toro Groundsmaster 3280-D - Page 138

TestProcedure(continued)
2.Withtheenginerunning,raisethecuttingdeck(orimplement)completely.
Usingblockingorahoist,supportthecuttingdeck(orimplement)tokeep
itinthefullyraisedposition.Shutofftheengine.
3.Placeadrainpanundertheliftcylinderthatistobetestedforinternal
leakage.Cleantheareaaroundthecylinderreturnhoseatthebottomof
theliftcylinder.
g230806
Figure64
1.Liftcylinder
2.Returnhose
4.Loosenthehoseclampanddisconnectthecylinderreturnhosefromthe
bottomoftheliftcylinder(Figure64).Leavetheotherendofthereturnhose
connectedtothelteradapteronthetransmission.
5.Securelyplugtheopenendofthedisconnectedliftcylinderreturnhoseto
preventhydraulicuidleakageorsuctionofairbythetransmission.
6.Removeallhydraulicuidfromdrainpan.Ensurethattheemptydrainpan
remainsundertheopenttingoftheliftcylinder.
7.StarttheengineandbrieyholdtheliftcontrolleverintheRAISEpositionto
pressurizetheliftcylinders.Shutofftheengine.
8.Checktoseeifanyuidhasleakedintothedrainpanfromtheopentting
oftheliftcylinder.Ifthereisanyuidinthedrainpan,theliftcylinderhas
internalleakageandmustbereplaced;refertoLiftCylinder(page5–110).
9.Iftheliftcylindershowsnosignofleakage,removetheplugfromthereturn
hose,andinstallthehoseontheliftcylindertting.Securethehoseby
tighteningthehoseclamp.
10.Ifnecessary,repeatsteps3through9fortheotherliftcylinder.
11.Aftertestingiscompleted,removethesupportfromthecuttingdeck(or
implement).Startengineandoperateliftcylindersthroughseveralupand
downcycles.Shutofftheengineandcheckforanyleakage.
12.Checkhydraulic-uidlevelinreservoir(frontaxle).
HydraulicSystem:TestingtheHydraulicSystem
Page5–54
Groundsmaster
®
3280-D/3320
05138SLRevB