
4.Slidetheexistingbrushoffthebrushshaft
(Figure20).
5.Loosenthe2bolts,washers,andnutssecuring
thedrive-bearinghousingtothebearing-housing
mountingbracket(Figure20).
6.Slidethehighheight-of-cutbrushontothebrush
shaft(Figure20).
7.Clampthebrushontotheshaftwiththe2J-bolts
andnutspreviouslyremoved(Figure20).
Important:Insertthethreadedendofthe
J-boltsthroughtheouterholesofthebrush
shaftwhilehookingthecurvedendsofthe
J-boltsintotheinnerholes.
8.TorquetheJ-boltlocknutsto2to3N∙m(20to
25in-lb).
g221192
Figure20
1.Highheight-of-cutbrush4.Nuts
2.J-bolts5.Existingbrush
3.Loosenthesebolts.
9.Installtheexcludersealandthe
non-drive-bearinghousingontothebrush
shaft(Figure19).
10.Mountthenon-drive-bearinghousingtothe
bearing-housingmountingbracketwiththe2
bolts,washers,andnutspreviouslyremoved.
Note:Becarefulnottoknockthesealspring
off.
11.Tightenthe2bolts,washers,andnutssecuring
thedrive-bearinghousingtothebearing-housing
mountingbracket.
Maintenance
•Ensurethatthebrushisparalleltotherollerwith
1.5mm(0.060inch)clearancetolightcontact.
•Greasethettingsevery50hoursandafterevery
washing.
•Whenreplacingarollerbrush,torquetheJ-bolts
to2to3N∙m(20to25in-lb).
•Whenreplacingthebrush-shaft-drivenpulley,
torquethenutto36to45N∙m(27to33ft-lb).
•Whenreplacingthebrush-drivepulley,apply242
Loctite(blue)andtorquetheboltto20to26N∙m
(15to19ft-lb).
Note:Therollerbrush,theidlerbearing,andthebelt
areconsideredconsumableitems.
CheckingandAdjustingthe
PulleyAlignment
1.Thedrivenpulley(attheroller-brushshaft)can
moveinorout(Figure21).
Note:Makenoteofwhichwaythepulleyneeds
tomove.
g193169
Figure21
1.Drivepulley3.Drivenpulley
2.Idlerpulleyassembly4.Driven-pulleynut
2.Whilerotatingthereel,whichrotatesthedrive
pulley,prythebeltoffthedrivepulley(Figure21
Note:Wearapaddedgloveoruseaheavyrag
torotatethereel.
3.Removethelocknutsecuringthedrivenpulley
tothebrushshaft(Figure21orFigure22).
9