Toro 74254 User manual

FormNo.3358-709RevA
Z589ZMaster®witha72inTURBOFORCE®Side
DischargeMower
ModelNo.74254—SerialNo.270000001andUp
Addendum
Note:Thefollowinginformationisfor72inchmower
decksonly.KeepthisinformationwiththeOperator’s
Manual.
Important:Toensurepropermowerbelttension,
whichwillresultinalongerbeltlife,checkthe
mowerbelttensionaftertherst8hoursofuseand
8hoursaftereachbeltchange.
ReplacingtheMowerBeltfor
72inMowerDecks
Squealingwhenthebeltisrotating,bladesslippingwhen
cuttinggrass,frayedbeltedges,burnmarksandcracks
aresignsofawornmowerbelt.Replacethemowerbelt
ifanyoftheseconditionsareevident.
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethebeltcovers(Figure1).
G001311
1
1
2
3
Figure1
1.Beltcover3.Insertslotintothetab
2.Latch
4.Loosentheidlerplateboltsholdingtheidlerplate
(Figure4).
5.Removetheidlerspring.
6.Removethebeltguideonthespringloadedidler
pulleyshowninFigure2andFigure4.
7.Removetheexistingbelt.
8.Installthenewbeltaroundthemowerpulleysand
thegearboxpulleyundertheengine(Figure2).
Figure2
1.Mowerbelt5.Gearboxpulley
2.Mowerspindlepulley6.Idlerspring
3.Springloadedidlerpulley7.Idlerplate
4.Beltguideata45degree
angle
9.Installthebeltguideonthespringloadedidlerata
45degreeangleasshowninFigure2andFigure4.
Torquetheboltto27to33ft-lb(37to45N-m).
10.Installtheidlerspringtothetwoposts(Figure2and
Figure4).
11.Adjustthebelttension,refertoAdjustingtheMower
BeltTension.
12.Installthebeltcoversbyslidingthecoverintothe
tab,installthebolts,andclosethelatches(Figure3).
©2007—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.Toro.com.OriginalInstructions(EN)
PrintedintheUSA.
AllRightsReserved

G001311
1
1
2
3
Figure3
1.Beltcover3.Insertslotintothetab
2.Latch
AdjustingtheMowerBelt
Tensionfor72inchMower
Decks
ServiceInterval:Aftertherst8hours
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedposition,andsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Adjustthemowerdecktothe3inch(76mm)
height-of-cutposition.
4.Measurethespringlength(Figure4).Ifthespring
lengthisbetween10and10-1/4inches(25.4and
26.0cm),fromposttopost,noadjustmentisneeded.
5.Loosentheboltsholdingtheidlerplate(Figure4).
6.Insertaratchetorbreakerbarintothesquareholein
theidlerplatetoadjustthetension(Figure4).
7.Rotatetheratchetorbreakerbartomovetheidler
plateuntiltheidlerspringisbetween10and10-1/4
inches(25.4and26.0cm)fromposttopostas
showninFigure4.
8.Whileholdingthebelttensionandspringlength,
tightentheidlerplateboltsthatsecuretheidlerplate
(Figure4).
Figure4
1.Beltguideinstallata45
degreeangle
4.Ratchetorbreakerbar
2.Idlerspringlength
(between10and10-1/4
inches(25.4and26.0cm))
5.Idlerplatebolt
3.Idlerplate
2