Toro 74939 - Belt Maintenance; Inspecting the Belts; Replacing the Mower Belt

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every50hours
Checkthebeltsforsquealingwhenthebeltisrotating,blades
slippingwhencuttinggrass,frayedbeltedges,burnmarksand
cracksaresignsofawornmowerbelt.Replacethemower
beltifanyoftheseconditionsareevident.
ReplacingtheMowerBelt
1.DisengagethePTO,movethemotioncontrolleversto
theneutrallockedposition,andsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
3.Lowerthemowertothe76mm(3inch)heightofcut.
4.Removethebeltcovers(
Figure77).
G009036
1
2
Figure77
1.Pushthetabdown.2.Removethebeltcover.
5.Usearatchetinthesquareholeintheidlerarmto
removetensionontheidlerspring(Figure78).
6.Removethebeltfromthemowerdeckpulleys.
7.Removethebeltguideonthespringloadedidlerarm
showninFigure78.
8.Removetheexistingbelt.
9.Installthenewbeltaroundthemowerpulleysandthe
clutchpulleyundertheengine(Figure78).
Figure78
1.Clutchpulley5.Squareholeintheidler
armfortheratchet
2.Mowerbelt
6.Idlergreasetting
3.Springloadedidlerpulley
7.Beltguide
4.Ratchet
10.InstallthebeltguideontheidlerarmshowninFigure
78.
11.Usingtheratchetinthesquarehole,installtheidler
spring(Figure78).
Note:Makesurethatthespringendsareseatedin
theanchorgrooves.
12.Installthebeltcovers(Figure79).
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