Toro 74444 - Adjusting the Caster Pivot Bearing

cut.Checkthetireswhentheyarecoldtogetthemost
accuratepressurereading.
Figure46
CheckingtheWheelHub
SlottedNut
ServiceInterval:Aftertherst100hours—Checkthe
wheelhubslottednut.
Every500hours—Checkthewheel
hubslottednut.
Aftertherst100hours—Checkthe
wheellugnuts.
Every500hours—Checkthewheel
lugnuts.
Theslottednutneedstobetorquedto125ft-lb
(170N-m).
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethecotterpin.
4.Torquetheslottednutto125ft-lb(170N-m)
(Figure47).
Figure47
1.SlottedNut3.Holeinthreadedshaft
2.Twothreadsorless
showing
4.Washer(ifneeded)
5.Checkthedistancefrombottomofslotinnutto
insideedgeofhole.Twothreadsorlessshouldbe
showing(Figure47).
6.Ifmorethantwothreadsareshowingremovenut
andinstallwasherbetweenhubandnut.
7.Torquetheslottednutto125ft-lb.(170N-m)
(Figure47).
8.Tightenthenutuntilthenextsetofslotslineupwith
theholeintheshaft(Figure47).
9.Replacethecotterpin.
AdjustingtheCasterPivot
Bearing
ServiceInterval:Every500hours/Yearly(whichever
comesrst)
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethedustcapfromcasterandtightenlock
nut(Figure48).
4.Tightenthelocknutuntilthespringwashersareat
andthenbackoffa1/4turntoproperlysetthe
pre-loadonthebearings(Figure48).
Important:Makesurespringwashersare
installedcorrectlyasshowninFigure48.
5.Installthedustcap(Figure48).
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