Toro 39678 - Belt Maintenance; Belt Inspection and Replacement

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every25hours—Checkthebelts
forwearorcracks.
Replacethebeltifitisworn.Thesignsofawornbelt
includesquealingwhilethebeltisrotating;theblades
slippingwhilecuttinggrass;andfrayededges,burn
marks,andcracksonthebelt.
Replacingthe
Traction-DriveBelt
ServiceInterval:Every50hours/Monthly
(whichevercomesrst)—Checkthe
traction-drivebelt.
1.Parkthemachineonalevelsurface,disengage
thePTO,andengagetheparkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Removethehairpincottersecuringthebrake
rodtothebrakearmtorelaxthetensiononthe
beltidler(Figure36).
4.Removethebottomboltandloosenthetopbolt
oftheshieldtorotateitforbeltclearance(Figure
36).
5.Liftthebeltpasttheidlerandoffthedrivepulley
(Figure36).
6.Raisethewheeloffthegroundenoughto
removethebelt.
7.Replacethetraction-drivebelt.
8.Securetheshieldwiththepreviouslyremoved
boltandtightenthebolts(Figure36).
9.Securethebrakerodtothebrakearmwiththe
hairpincotter(Figure36).
g001474
Figure36
1.Hairpincotter
3.Shield
2.Brakerod4.Drivebelt
ReplacingtheDriveBelt
1.Parkthemachineonalevelsurface,disengage
thePTO,andengagetheparkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Raisetherearofthemachineandholditupwith
jackstands.
4.Removethemowerbelt(Figure37).
g001475
Figure37
1.Idlerpulleyintheslot4.Beltguide
2.Tractionbelt
5.19mm(3/4inch)
3.Mowerbelt6.Tractionbelt
5.Loosenthepivotboltenoughtoslidetheidler
pulleyintheslot,andremovethetractionbelt
fromtheengineanddrivepulleys(Figure37).
6.Installthenewdrivebeltaroundtheengineand
drivepulleys(Figure37).
7.Slidetheidlerpulleyintheengineframeto
tensionthetractionbelt(Figure37).
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