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  3. BBC Pulley Kit, 21in Heavy-Duty Hi-Vac Walk-Behind Lawn Mower

Toro BBC Pulley Kit, 21in Heavy-Duty Hi-Vac Walk-Behind Lawn Mower Installation guide

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FormNo.3360-209RevA
BBCPulleyKit
21inHeavy-DutyHi-VacWalk-BehindLawnMower
ModelNo.115-4460
InstallationInstructions
ReplacingtheBBCPulley
1.Removethe2bladenuts,anti-scalpcup,blade,blade
retainer,andclutchshielddisc.
2.Removethe4screwsthatholdthebladebrakeclutch
shieldinplace.
3.Removethebladebrakeclutchshield.
4.Removethecrankshaftbolt,2cuppedwashers,and
spacer.
5.RemovethelowerBBCpulleyhalfassembly.
6.Movethebeltoutoftheway.
7.Removeanddiscardthealuminumupperpulleyhalf.
8.InstallthenewupperBBCpulleyassembly(BBC
platespacer,driverpulley,upperdriverpulleyhalf,
andspacer).
9.Positionthebeltontothecrankshaftbelowthe
upperpulleyhalf.
10.InstallthelowerBBCpulleyassembly.
11.Installthespacer,2cuppedwashers,andcrankshaft
bolt.
Note:Positionthecuppedwasherssothatthe
cuppedsidefacesupward,towardthehousing.
Note:ApplyLoctite(505-23)tothethreadsofthe
crankshaftboltbeforeinstallation.Donotpinch
thebeltbetweenthe2BBCpulleyhalveswhileyou
tightenthecrankshaftbolt.Torquethecrankshaft
boltto55–60ft-lb.
12.Installthebladebrakeclutchshieldusingthe4
screwsthatyoupreviouslyremoved.
Note:Torquetheclutchshieldscrewsto70–110
in-lb.
13.Installtheclutchshielddisc,bladeretainer,blade,
anti-scalpcup,and2bladenuts.
Note:Torquethebladenutsto280-320in-lbs.
©2008—TheToro®Company
8111LyndaleAvenueSouth
Bloomington,MN55420
Registeratwww.Toro.com.
OriginalInstructions(EN)
PrintedintheUSA
AllRightsReserved
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