AssemblingtheBladeSpindle(continued)
6.Slidethespacerringandinnerbearingspacerintothespindlehousing,then
installtheupperbearingconeandoilsealintothetopofthehousing.
Note:Theuppersealmusthavethelipfacingin(down).Also,installupper
sealsoitisushto1.5mm(0.060inch)recessedtothehousingsurface
(Figure301).
7.Examinethespindleshaftandshaftspacertoensurethattherearenoburrs
ornicksthatcoulddamagetheoilseals.Lubricatetheshaftandspacer
withgrease.
8.Installthespindleshaftspacerontotheshaft.Placeathinsleeveortapeon
thespindleshaftsplinestopreventdamageofthesealduringtheinstallation
oftheshaft.
9.Carefullyslidethespindleshaftwiththespacerupthroughthespindle
housing.
Note:Thebottomoilsealandspindlespacerttogetherwhenthespindle
isfullyinstalled.
g223666
Figure302
1.Locknut
3.O-ring
2.Upperseal4.Hardenedwasher
10.InstalltheO-ringtothetopofthespindleshaft(Figure302).
11.Installthepulley(hubdown),specialhardenedwasher,andlocknuttothe
spindleshaft(Figure302);torquethelocknutto176to203N∙m(130to
150ft-lb).
IMPORTANT
Apneumaticgreaseguncanproducehighpressureinsidethe
spindlehousingthatcandamagethespindleseals.Thus,donotuse
apneumaticgreasegunforgreasingofthespindlehousings.
12.Attachahandpumpgreaseguntothegreasettingonthehousingandll
thehousingcavitywithgreaseuntilthegreasestartstocomeoutofthe
lowerseal.
13.Rotatethespindleshafttoensurethatitturnsfreely.
Groundsmaster
®
3280-D/3320
Page10–13
CuttingUnits:ServiceandRepairs
05138SLRevB
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