Toro Z580-D Z Master - Belt Maintenance; Replacing the Mower Belt; Replacing the PTO Drive Belt

BeltMaintenance
InspectingtheBelts
ServiceInterval:Every100hours
Checkbeltsforcracks,frayededges,burnmarks,orany
otherdamage.Replacedamagedbelts.
ReplacingtheMowerBelt
Squealingwhenthebeltisrotating,bladesslippingwhen
cuttinggrass,frayedbeltedges,burnmarksandcracks
aresignsofawornmowerbelt.Replacethemowerbelt
ifanyoftheseconditionsareevident.
Important:Thefastenersonthemowerdeck
coversofthismachinearedesignedtoremainon
thecoverafterremoval.Loosenallofthefasteners
oneachcoverafewturnssothatthecoverisloose
butstillattached,thengobackandloosenthem
untilthecovercomesfree.Thiswillpreventyou
fromaccidentallystrippingtheboltsfreeofthe
retainers.
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethebeltcoversandtheboltsattachedto
them(
Figure67).
4.Removethespringandbeltguidefromtheidlerarm.
5.Removetheexistingbeltifneeded.
6.Installthenewbeltaroundthemowerpulleysand
thegearboxpulleyundertheengine(
Figure68).
7.Installthebeltguideonthespringloadedidlerata
45degreeangleasshowninFigure68.Torquethe
boltto27to33ft-lb(37to45N-m).
8.Installtheidlerspringtothetwoposts(
Figure68).
9.Installthebeltcoversbyslidingthecoverinto
thetab,tightenthebolts,andclosethelatches
(Figure67).
g012495
2
3
4
1
Figure67
1.Beltcover3.Bolt
2.Latch4.Inserttabintothetab
Figure68
1.Mowerbelt4.Beltguide
2.Mowerspindlepulley
5.Gearboxpulley
3.Moweridlerpulley
6.Spring
ReplacingthePTODriveBelt
ServiceInterval:Every50hours—CheckthePTO
drivebelt.
Important:Thefastenersforthefrontenginepanel
aredesignedtoremainonthemachineaftercover
removal.Loosenallofthefastenersafewturnsso
thatthepanelisloosebutstillattached,thengo
backandloosenthemuntilthepanelcomesfree.
Thiswillpreventyoufromaccidentallystripping
theboltsfreeoftheretainers.
49