Toro 74311TE - Belt Maintenance; Inspecting the Belts; Replacing the PTO Belts

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every40hours
Replacethebeltifitisworn.Thesignsofawornbelt
includesquealingwhilethebeltisrotating;theblades
slippingwhilecuttinggrass;andfrayededges,burn
marks,andcracksonthebelt.
1.Parkthemachineonalevelsurface,movethe
speed-controllevertotheNEUTRALposition,
disengagethePTO,andengagetheparking
brake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.TiltthehopperupandcheckthepumpandPTO
drivebeltsforwear,cracking,orcontamination.
Note:Thebeltsarespringtensionedandno
adjustmentisnecessaryunlessthebeltsare
replaced.
ReplacingthePTOBelts
1.Parkthemachineonalevelsurface,movethe
speed-controllevertotheNEUTRALposition,
disengagethePTO,andengagetheparking
brake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Withtheengineoff,engagethePTOlever,then
removethehairpincotterandclevispinatthe
bottomofthePTO-brakeband.
4.Rotatethebrakebandupwardandoutofthe
wayofthebeltskeepingclearofthebeltdrive.
5.DisengagethePTOlever.
6.LoosenbeltguidesAandB(Figure60).
7.Removethebelts.
8.Routethenewbeltsontothepulleysasshown
inFigure60.
g006836
Figure60
1.Idler5.Engine
2.BeltguideB6.BeltguideA
3.PTObelt
7.Blower
4.Jackshaft
9.EngagethePTOlever.
10.Rotatethebrakebanddownintotheoriginal
position.
11.Installtheclevispinandhairpincottertosecure
thebrakeband.
12.Loosenthejamnutsandadjustthelinkageuntil
thetopoftheidlerarmisalignedwiththebottom
ofthenotchonthetensionarmasshownin
Figure61.
g006837
Figure61
1.Tensionarm
2.Loosenthejamnuts.
3.WhenPTOisengaged,aligntopofidlerarmwithbottomof
notchontensionarm,asshown.
4.Idlerarm
13.TightenthejamnutsanddisengagethePTO
lever.
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