Toro Z580-D Z Master 74266 - Adjusting the Mower Belt Tension for 72 In Mowers Only

Figure63
1.Mowerbelt
5.Gearboxpulley
2.Mowerspindlepulley6.Idlerspring
3.Springloadedidlerpulley7.Idlerplate(for72inch
mowersonly)
4.Beltguideata45degree
angle
9.Installthebeltguideonthespringloadedidlerata
45degreeangleasshowninFigure63andFigure65.
Torquetheboltto27to33ft-lb(37to45N-m).
10.Installtheidlerspringtothetwoposts(Figure63
andFigure65).
11.For72inchmowers,adjustthebelttension,referto
AdjustingtheMowerBeltTension.
12.Installthebeltcoversbyslidingthecoverintothe
tab,installthebolts,andclosethelatches(Figure64).
Figure64
1.Beltcover3.Insertslotintothetab
2.Latch
AdjustingtheMowerBelt
Tensionfor72inMowersOnly
ServiceInterval:Aftertherst8hours
Important:Toensurepropermowerbelttension,
whichwillresultinalongerbeltlife,checkthe
mowerbelttensionaftertherst8hoursofuseand
8hoursaftereachbeltchange.
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedposition,andsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Adjustthemowerdecktothe3inch(76mm)
height-of-cutposition.
4.Measurethespringlength(Figure65).Ifthespring
lengthisbetween10and10-1/4inches(25.4and
26.0cm),fromposttopost,noadjustmentisneeded.
5.Loosentheboltsholdingtheidlerplate(Figure65).
6.Insertaratchetorbreakerbarintothesquareholein
theidlerplatetoadjustthetension(Figure65).
7.Rotatetheratchetorbreakerbartomovetheidler
plateuntiltheidlerspringisbetween10and10-1/4
inches(25.4and26.0cm)fromposttopostas
showninFigure65.
8.Whileholdingthebelttensionandspringlength,
tightentheidlerplateboltsthatsecuretheidlerplate
(Figure65).
Figure65
1.Beltguideinstallata45
degreeangle
4.Ratchetorbreakerbar
2.Idlerspringlength
(between10and10-1/4
inches(25.4and26.0cm))
5.Idlerplatebolt
3.Idlerplate
47