Toro 4045 - Engine Drive Belt Tension Checks and Adjustments; Checking Engine Drive Belt Tension; Adjusting Engine Drive Belt Tension

CheckingtheTensionoftheBelt
ServiceInterval:Every1,000hours
1.Parkthemachineonalevelsurface,stoptheengine,
andremovetheignitionkey.
2.Openthefronthood.
3.Alignastraightedgeoverthedrivebeltandacrossthe
pulleysasshowninFigure147.
Figure147
4.Pressthebeltdownatthemidwaypointbetweenthe
fanpulleyandthealternatorpulleyasshowninFigure
147.
Note:Therangeofbeltdeectionbetweenthe
straightedgeandthebeltshouldbe7to9mm(9/32
to11/32in),underaloadof10kg(22lb).
5.Ifthetensionofthebeltisaboveorbelowthespecied
range,adjustthedrivebelttension;refertoAdjusting
theTensionoftheBelt(page105).
AdjustingtheTensionoftheBelt
1.Parkthemachineonalevelsurface,stoptheengine,
andremovetheignitionkey.
2.Openthefronthood.
3.Loosenthenutandboltatthepivotpointforthe
alternator(Figure148).
Figure148
1.Adjustmentbolt3.Alternator
2.Nut(alternatorpivotpoint)4.Bolt(alternatorpivotpoint)
4.Loosentheadjustmentboltonthealternator(Figure
148).
5.Movethealternatorawayfromtheenginetoincrease
thebelttension;movethealternatortowardtheengine
todecreasethebelttension(Figure148).
6.Tightenthealternatoradjustmentbolt(Figure148).
7.Checkthetensionofthebelt;refertoCheckingthe
TensionoftheBelt(page105).
8.Ifthebelttensioniscorrect,tightenthenutandbolt
atthepivotpointforthealternator(Figure148);
otherwise,repeatsteps4through7.
105