Toro 74997 - Belt Maintenance; Replacing the Mower Belt

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every50hours
Replacethebeltifitisworn.Thesignsofawornbeltinclude
squealingwhilethebeltisrotating;thebladesslippingwhile
cuttinggrass;andfrayededges,burnmarks,andcrackson
thebelt.
ReplacingtheMowerBelt
1.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheNEUTRAL-LOCKposition,
andsettheparkingbrake.
2.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Lowerthemowertothe76mm(3inch)height-of-cut.
4.Removethebeltcovers(Figure79).
Figure79
5.Usearatchetinthesquareholeintheidlerarmto
removetensionontheidlerspring(Figure80).
6.Removethebeltfromthemower-deckpulleys.
7.Removethebeltguideonthespring-loadedidlerarm
(Figure80).
8.Removetheexistingbelt.
9.Installthenewbeltaroundthemowerpulleysandthe
clutchpulleyundertheengine(Figure80).
Figure80
1.Clutchpulley5.Squareholeintheidler
armfortheratchet
2.Mowerbelt
6.Idler-greasetting
3.Spring-loadedidlerpulley
7.Beltguide
4.Ratchet
10.Installthebeltguideontheidlerarm(Figure80).
11.Usingtheratchetinthesquarehole,installtheidler
spring(Figure80).
Note:Makesuretoseatthespringendsintheanchor
grooves.
12.Installthebeltcovers(Figure81).
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