Toro GrandStand 74550 - Belt Maintenance; Replacing the Mower Deck Belt; Replacing the Pump Drive Belt

BeltMaintenance
ReplacingtheMowerDeck
Belt
ServiceInterval:Every100hours—Checkthemower
deckbelt.
Squealingwhenthebeltisrotating,bladesslippingwhen
cuttinggrass,frayedbeltedges,burnmarksandcracks
aresignsofaworndeckbelt.Replacethedeckbeltif
anyoftheseconditionsareevident.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Unlatchandremovethebeltcovers.
4.Loosenthefrontidlerpulleybylooseningthenut.
5.Removethewornmowerbelt(
Figure65).
6.Installthenewmowerbeltaroundthedeckpulleys
andclutchpulley(
Figure65).
7.Usingaratchetintheidlerarm,tightentheidler
pulleyuntilthespringisstretched5-3/4inches(14.6
cm)fromhooktohook(Figure65).
8.Tightenthefrontidlerpulleybytighteningthenut.
9.Installthebeltcoversontothecuttingunitand
securethelatches.
Figure65
1.5-3/4inches(14.6cm)
fromhooktohook
4.Ratchet
2.Spring5.Squareholeforratchet
3.Springloadedidler
6.Nut
ReplacingthePumpDriveBelt
ServiceInterval:Every100hours—Checkthepump
drivebelt.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethemowerdeckbelt.
4.Tiltthemachineonit’sback.Referto
Pre-Maintenanceatthebeginningofthe
MaintenanceSection.
5.Releasethespringfromtheenginedeck(
Figure66).
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