Toro 31598 - Servicing the Castor Arm Bushings

6.Adjusttheothersetofnutstoraiseorlowertherear
ofthecuttingunitandattainthecorrectcuttingunit
pitch.
7.Tightenthejamnuts.
Figure95
1.Height-of-cutchain3.Nut(2)
2.U-bolt
AdjustingtheSideCuttingUnits
1.Removethetensioningcapfromthecastorspindle
shaftandslidethespindleoutofthecastorarm
(
Figure96).Repositiontheshims,asrequired,to
raiseorlowerthecastorwheeluntilthecuttingunit
hasthecorrectpitch.
2.Installthetensioningcap.
Figure96
1.Tensioningcap4.Topaxlemountinghole
2.Spacers5.Castorwheel
3.Shims
ServicingtheCastorArm
Bushings
Thecastorarmshavebushingspressedintothetopand
bottomofthetubeandaftermanyhoursofoperation,
thebushingswillwear.Tocheckthebushings,movethe
castorforkbackandforthandfromsidetoside.Ifthe
castorspindleislooseinsidethebushings,thebushings
arewornandmustbereplaced.
1.Raisethecuttingunitsothatthewheelsareoffof
theoor.Blockthecuttingunitsothatitcannot
accidentallyfall.
2.Removethetensioningcap,spacer(s),andthrust
washerfromthetopofthecastorspindle.
Note:Recordthepositionofthewashersand
spacersbeforeremovalsothedeckpitchdoesnot
havetobereadjusted.
3.Pullthecastorspindleoutofthemountingtube.
Allowthethrustwasherandspacer(s)toremainon
thebottomofthespindle.
4.Insertapinpunchintothetoporbottomofthe
mountingtubeanddrivethebushingoutofthetube
(
Figure97).Alsodrivetheotherbushingoutofthe
tube.Cleantheinsideofthetubestoremovedirt.
63