Toro 58620 - Adjusting the Drive Belt Tension

6.Tightenthemountingboltonthedrivepulley.
7.Securethemowerheadandtheshield(Figure
19).
AdjustingtheDriveBelt
Tension
ServiceInterval:Every2hours
Maintainproperbelttensiontoimprovemachine
performance.Engagethedriveleverandensurethat
thespringextends3to6mm(1/8to1/4inch).Ifit
doesnot,adjustthebelttension.
Note:Youmayhearashortbuzzingsoundafter
releasingtheengagementleverwhileusingthe
machine.Thisisnormalandiscausedbytheteeth
ofthecoggedbeltcontactingthewireguidetostop
rotation.Youdonotneedtoadjustthebelttension
forthis.
g337958
Figure21
1.Spring
1.Loosentheupperjamnutontheadjustment
cable.
g337972
Figure22
1.Barrelnut3.Lowerjamnut
2.Upperjamnut4.Adjustmentcable
2.Tightenthelowerjamnutin3mm(1/8inch)
increments.
Note:Ahighernumberofbarrel-nutthreads
belowthebracketincreasesthetensiononthe
belt.
Important:Donotoveradjustthetension.
3.Engagethedriveleverandverifythatthespring
extends3to6mm(1/8to1/4inch);adjustthe
jamnutagainasneeded.
4.Tightenthebottomjamnut.
5.Ifthemowerstilldoesnotproperlyengageafter
adjustingthecable,adjustthejamnutforthe
secondcableunderthemowerdeck.
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