Toro 74969 - Belt Maintenance; Inspecting the Belts; Replacing the Mower Belt

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Figure86
LeftSideShown
1.L-bracket4.Rearlinkageassembly
2.Linkagestop
5.Caliper
3.Gap
6.Wheelhub
8.Disengagetheparkingbrake,thelevershould
beinthedownposition.
9.Turnthewheelhubbyhandinbothdirections
relativetothecaliper;thewheelhubshould
movefreelybetweenthecaliper.
10.Ifagapisneededorthewheelhubdoesnot
movefreely:
A.Disengagetheparkingbrake.
B.Disconnectandne-tunetherearlinkage
assembly:
•Shortenthelinktocreateagap.
•Lengthenthelinktoallowwheelhub
movement.
C.Connecttherearlinkageassembly.
11.Engagetheparkingbrakeandcheckthegap.
12.Repeatsteps8through12untilavisiblegapis
achievedandthewheelhubrotatesfreely.
13.Repeatthisprocedureforthebrakeonthe
oppositeside.
14.Rotatethedrive-wheelreleasehandleto
theoperatingposition;refertoUsingthe
Drive-Wheel-ReleaseValves(page28).
15.Installthereartiresandtorquethelugnuts;
refertoCheckingtheWheelLugNuts(page52).
16.Removethejackstands.
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(3inch)
height-of-cut.
4.Removethebeltcovers(Figure87).
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Figure87
1.Pushthetabdown2.Removethebeltcover
5.Usearatchetinthesquareholeintheidlerarm
toremovetensionontheidlerspring(Figure88).
6.Removethebeltfromthemower-deckpulleys.
7.Removethebeltguideonthespring-loaded
idlerarm(Figure88).
8.Removetheexistingbelt.
9.Installthenewbeltaroundthemowerpulleys
andtheclutchpulleyundertheengine(Figure
88).
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