Toro groundmaster 7210 - Belt System Maintenance

BeltMaintenance
CheckingtheAlternator
Belt
ServiceInterval:Every100hours
Propertensionallows10mm(3/8inch)deection
whenaforceof44N(10lb)isappliedonthebelt
midwaybetweenthepulleys.
Ifthedeectionisnot10mm(3/8inch),completethe
followingprocedure:
1.Loosenthealternatormountingbolts(Figure
78).
g020537
Figure78
1.Mountingbolt2.Alternator
2.Increaseordecreasethealternator-belttension
andtightenthebolts.
3.Checkthedeectionofthebeltagaintoensure
thatthetensioniscorrect.
ReplacingtheBladeDrive
Belts
ServiceInterval:Every50hours
Thebladedrivebelts,tensionedbythespring-loaded
idlerpulleys,areverydurable.However,aftermany
hoursofuse,thebeltswillshowsignsofwear.Signs
ofawornbeltare:squealingwhenbeltisrotating,
bladesslippingwhencuttinggrass,frayededges,
burnmarksandcracks.Replacethebeltsifanyof
theseconditionsareevident.
1.Lowerthecuttingunittothe2.54cm(1inch)
height-of-cutsetting,movethethrottlelever
totheSLOWposition,stoptheengine,setthe
parkingbrake,andremovetheignitionkey.
2.Removethebeltcoversfromthetopofthe
cuttingunitandsetthecoversaside.
3.Usingabreakerbarorsimilartool,movethe
idlerpulleyforthetopbeltawayfromthetop
drivebelttoreleasethebelttensionandslipthe
beltoffthepulleys(Figure79).
g004486
Figure79
1.Topbelt3.Bottombelt
2.Topidlerpulley4.Bottomidlerpulley
4.Usingabreakerbarorsimilartool,movethe
idlerpulleyforthebottombeltawayfromthe
bottomdrivebelttoreleasethebelttension
andallowthebelttobeslippedoffthepulleys
(Figure79).
5.Routeanewbeltaroundthegearboxpulley,
bottomspindlepulleys,andidler-pulley
assemblyasshowninFigure79.
6.Routeanewbeltaroundthetopspindlepulleys
andidler-pulleyassemblyasshowninFigure79.
7.Installthebeltcovers.
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