Toro 74020 - Belt Maintenance; Inspecting the Belts; Replacing the Mower Belt

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every50hours
Replacethebeltifitisworn.Thesignsofawornbelt
includesquealingwhilethebeltisrotating;theblades
slippingwhilecuttinggrass;andfrayededges,burn
marks,andcracksonthebelt.
ReplacingtheMowerBelt
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Lowerthemowertothe76mm(3inches)height
ofcut.
4.Removethebeltcovers(Figure73).
g027729
Figure73
5.Usea3/8-inchratchetinthesquareholeinthe
idlerarmtoremovetensionontheidlerspring
(Figure74).
6.Removethebeltfromthemower-deckpulleys
andtheclutchpulley.
7.Removethebeltguideonthespring-loaded
idlerarm(Figure74).
8.Removetheexistingbelt.
9.Installthenewbeltaroundthemowerpulleys
andtheclutchpulleyundertheengine(Figure
74).
g334846
Figure74
1.Spring4.Spring-loadedidler
assembly
2.Clutchpulley
5.Ratchet
3.Mowerbelt
6.Squareholeintheidler
armfortheratchet
10.Installthebeltguideontheidlerarm(Figure74).
11.Usingthe3/8-inchratchetinthesquarehole,
installtheidlerspring(Figure74).
Note:Ensurethatthespringendsareseated
intheanchorgrooves.
12.Installthebeltcovers(Figure75).
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