Service Manual

BeltReplacement
BeltRemoval
1.Removethe3(1/4-20x5/8inch)screwssecuringthebeltcovertotheauger
housing.Removethebeltcoverfromtheaugerhousing.
2.Unhooktheextensionspringfromtheidlerarm.
g324732
Figure70
3.Removethescrew(1/4-20x7/8inch)andBellevillewashersecuringthe
rotorpulleytotherotorshaft.
g324731
Figure71
4.Removetherotorpulleyassemblyfromtherotorshaft.
5.Removethebeltfromtheenginepulleyandrotorpulley.
BeltInstallation
1.Routethebeltrstaroundtheenginepulley,undertheatidlerpulley,and
nallyaroundthelooserotorpulleypositionedabovetherotorshaft.
2.Installtherotorpulleyontotherotorshaft.Applybluethreadlockertothreads
ofthenew(1/4-20x7/8inch)screw.InstalltheBellevillewasherandscrew
securingtherotorpulleyassemblytotherotorshaft.T orquethescrewto
11.3±1Nm(100±10in-lb).
DriveSystem:ServiceandRepairs
Page6–6
POWERCLEAR®721/821SnowthrowerServiceManual
3438-776RevA