Toro 74296 - Adjusting the Mower Belt Tension; Checking and Replacing the Pump Drive Belt

Figure58
1.Centerbolt3.Leftsupportplate
2.Alignmenthole
4.Springloadedidler
5.Ifadjustmentisrequired,loosentheidlerplateto
adjustit(Figure59).
6.Insertaratchetorbreakerbarintothesquareholein
theidlerplatetoadjustthetension(
Figure59).
7.Toincreasebelttension,rotatetheratchetorbreaker
bartomovethexedidleruntilyoufeelincreased
resistanceandthespring-loadedidlerpulleystops
moving(Figure59).
Note:Donotincreasethebelttensionbeyondthe
pointwherethexedidlerarmstops.
8.Whileholdingthebelttension,tightentheidlerplate
boltsthatsecuretheidlerplate(
Figure59).
Figure59
1.Rachetwithshort
extensionorbreaker
bar
2.IdlerplatewithSquare
hole
9.Checkthedistancefromtherubberstopandthe
armofthespringloadedidlerpulleywhentheidler
plateistightened.Itneedstobe0to1/4inch(0to6
mm)fromtherubberstop(
Figure60).
Figure60
1.Springloadedidlerpulley
4.Idlerpulleyarm
2.Topalignmenthole5.Belt
3.0to1/4inchgap(0to6
mm)
6.Rubberbumper
10.Adjustthebelttensionandtheidlerplate,if
necessary,andtightenallhardwaresecurely
(Figure59).
11.Iftheidlerplatecontactstheendoftheadjustment
slotandmorebelttensionisrequired,asmallchange
totherightsidexedidlercancreatemorebelt
tensionadjustment(Figure61).
Figure61
1.Fixedidler2.Adjustmentslot
CheckingandReplacingthe
PumpDriveBelt
ServiceInterval:Every50hours—Checkthepump
drivebelt.
1.Checkthepumpdrivebeltforwear.
2.Pullthespringloadedidlerdownandremove
tractionbeltfromtheengineandhydropumppulleys
(Figure62).Removebeltbetweenpulleys.
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