Toro 121-7480 Installation Instructions
HydraulicSystemCoolingKit
GrandStand
ModelNo.121-7480
®
Installation
LooseParts
Usethechartbelowtoverifythatallpartshavebeenshipped.
FormNo.3373-396RevB
Mower
InstallationInstructions
ProcedureDescription
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2
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4
5
6
Nopartsrequired
Nopartsrequired
Hydraulicsystemcoolingassembly1
Bolt(5/16x3/4inch)
Nut(5/16inch)
61cm(24inch)hose
HoseassemblywiththeT-connector1
Cabletie
Hoseclamps
Wireharness1
Cabletie
Nopartsrequired
Qty.
10
Use
–
–
2
2
1
2
5
–
Preparingtheunit.
Removingthelowpressurehoses.
Installingthehydraulicsystemcooling
assembly.
Installingthelowpressurehoses.
Routingthewireharness.
Bleedingthehydraulicsystem.
©2012—TheT oro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.T oro.com.
OriginalInstructions(EN)
PrintedintheUSA.
AllRightsReserved
*3373-396*B
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PreparingtheUnit
NoPartsRequired
Procedure
WARNING
Hydraulicuidescapingunderpressurecan
penetrateskinandcauseinjury.
Figure1
•Makesureallhydraulicuidhosesandlinesare
ingoodconditionandallhydraulicconnections
andttingsaretightbeforeapplyingpressureto
thehydraulicsystem.
•Keepyourbodyandhandsawayfrompin
holeleaksornozzlesthatejecthighpressure
hydraulicuid.
•Usecardboardorpapertondhydraulicleaks.
•Safelyrelieveallpressureinthehydraulicsystem
beforeperforminganyworkonthehydraulic
system.
•Seekimmediatemedicalattentionifuidis
injectedintoskin.
1.Positionmachineonalevelsurface.
2.Disengagethepowertakeoff(PTO)andsetthe
parkingbrake.
3.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
4.Removethekey.
1.Platformup
2.Platformdown
9.Removethehairpincottersecuringtherearcushion
bracket(Figure2).
10.Slidethebushingnexttothemachine(Figure2).
11.Lowertherearcushionbracketontotheplatform
(Figure1andFigure2).
3.Pulltheknobouttorelease
theplatform
Figure1).
Figure33).
Figure2
1.Hairpincotter3.Rearcushionbracket
2.Bushing
5.Removethebatterycover(
6.Removethenegativebatterycablefromthebattery.
7.Lowerthemowerdecktothelowestheight-of-cut
setting.
8.Lowertheplatform(
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2
RemovingtheLowPressure
Hoses
NoPartsRequired
Procedure
1.Removethebolt,nut,andR-clampsecuringthehose
connectingtheright-handpumptothehydraulic
reservoirbracket(Figure3).
Note:DiscardtheR-clamp.
Figure4
Yourmodelmayvaryfromthisdiagram.
Figure3
1.Boltsecuringthehose3.Frontconnectoron
hydraulicreservoirtank
2.Hydraulicreservoirbracket
2.Removethelowpressurehosefromthefronttting
underthehydraulicreservoirtank(Figure3).
Note:Draintheoilintoanoilpan.
1.Cabletie
1.Cabletie
2.Hoses
Figure5
Yourmodelmayvaryfromthisdiagram.
2.Lowpressurehoses
3.Removeanddiscardthecabletiessecuringthelow
pressurehoses(
Figure4andFigure5).
3
4.Removethelowpressurehosefromtheright-hand
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pump(Figure6).
Figure6
1.Disconnecthere
5.Removethelowpressurehosefromtheleft-hand
pump(Figure7).
Figure8
1.Removehose
3
InstallingtheHydraulic SystemCoolingAssembly
Partsneededforthisprocedure:
1Hydraulicsystemcoolingassembly
2
Bolt(5/16x3/4inch)
2
Nut(5/16inch)
Procedure
1.Usinga5/16inchdrillbit,reamtheholeinthe
reservoirbracket(Figure9).
Figure7
1.Disconnecthere
6.Removethehosefromtheunit(Figure8).
4
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