Toro 74991 - NO TITLE; Inspecting the Belts; Replacing the Mower Belt

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every50hours
Checkthebeltsforsquealingwhenthebeltisrotating,
bladesslippingwhencuttinggrass,frayedbeltedges,
burnmarks,andcracks.Thesearesignsofaworn
mowerbelt;replacethemowerbeltifanyofthese
conditionsareevident.
ReplacingtheMowerBelt
Squealingwhenthebeltisrotating,bladesslipping
whencuttinggrass,frayedbeltedges,burnmarks,
andcracksaresignsofawornmowerbelt.Replace
themowerbeltifanyoftheseconditionsareevident.
1.DisengagethePTO,movethemotion-control
leverstotheneutral-lockedposition,andsetthe
parkingbrake.
2.Stoptheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Lowerthemowertothe76mm(3inch)height
ofcut.
4.Removethebeltcovers(Figure82).
g027729
Figure82
1.Pushtabdown2.Removebeltcover
5.Usearatchetinthesquareholeintheidlerarm
toremovetensionontheidlerspring(Figure83).
6.Removethebeltfromthemowerdeckpulleys.
7.Removethebeltguideonthespring-loaded
idlerarmshowninFigure83.
8.Removetheexistingbelt.
9.Installthenewbeltaroundthemowerpulleys
andtheclutchpulleyundertheengine(Figure
83).
g009038
Figure83
1.Clutchpulley5.Squareholeintheidler
armfortheratchet
2.Mowerbelt
6.Idlergreasetting
3.Spring-loadedidlerpulley
7.Beltguide
4.Ratchet
10.Installthebeltguideontheidlerarmshownin
Figure83.
11.Usingtheratchetinthesquarehole,installthe
idlerspring(Figure83).
Makesurethatthespringendsareseatedin
theanchorgrooves.
12.Installthebeltcovers(Figure84).
57