Toro 30632 - Adjusting the Mower Belt Tension

necessary.Thedisengagedbeltshouldnotdragorfall
offthepulleywhentheguidesareproperlyadjusted.
AdjustingtheMowerBelt
Tension
AdjustingtheTensionfor32-inchand
36-inchMowerDecks
ServiceInterval:Aftertherst8hours—Checkthemower
belttension.
Aftertherst25hours—Checkthemowerbelt
tension.
Every50hours—Checkthemowerbelttension.
Important:Adjustthebrakewheneveryouadjustthe
belttensionorthebrakelinkage.
Important:Thebeltmustbetightenoughtonotslip
duringheavyloadswhilecuttinggrass.Over-tensioning
thebeltwillreducethelifeofthespindlebearing,the
belt,andtheidlerpulley.
Thebeltmustbetightenoughsothatitdoesnotslipduring
heavyloadswhilecuttinggrass,andover-tensioningwill
reducebeltandspindlebearinglife.
1.Disengagetheblade-control(PTO)leverandsetthe
parkingbrakes.
2.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
3.Loosenthelocknutontheturnbuckle(Figure42).
4.Rotatetheturnbuckletowardtherearofthemowerto
increasethetensiononthebelt.Rotatetheturnbuckle
towardthefrontofthemowertodecreasethetension
onthebelt(Figure42).
Note:Theeyeboltthreadsonbothendsofthe
turnbuckleshouldbeengagedaminimumof8mm
(5/16inch).
5.Engagetheblade-controllever(PTO)andcheckthe
belttension.Adjustthetensionuntilitiscorrect.
Note:Thepropermowerbelttensionis44to67N-m
(10to15ft-lb)withthebeltdeected13mm(1/2inch)
halfwaybetweenthepulleys(Figure42).
Figure42
32-inchand36-inchmowerdeck
1.Mowerbeltwith13mm
(1/2inch)deection
2.Idlerpulley
6.Tightenthelocknutontheturnbuckle.
7.Checktheadjustmentofthebladebrake;referto
AdjustingtheBladeBrake(page40).
AdjustingtheTensionfor48-inch
MowerDecks
Important:Thebeltmustbetightenoughtonotslip
duringheavyloadswhilecuttinggrass.Over-tensioning
thebeltwillreducethespindlebearinglife,thebeltlife
andtheidlerpulleylife.
Important:Thebrakeneedstobeadjustedwhenthe
belttensionorthebrakelinkageisadjusted.
1.Disengagetheblade-control(PTO)leverandsetthe
parkingbrakes.
2.Stoptheengineandwaitforallmovingpartstostop
beforeleavingtheoperatingposition.
3.Loosenthelocknutontheturnbuckle(Figure44).
4.Adjustthetensionofthebelt.
•Rotatetheturnbuckletowardtherearofthemower
toincreasethetensiononthebelt.
•Rotatetheturnbuckletowardthefrontofthe
mowertodecreasethetensiononthebelt(Figure
44).
Note:Thepropermowerbelttensionis44to67N-m
(10to15ft-lb)withthebeltdeected13mm(1/2inch)
halfwaybetweenthepulleys(Figure43).
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