Figure47
1.Trackingknob4.Turnthiswaytotrackright
2.Hydraulictank
5.Turnthiswaytotrackleft
3.Hydraulicpumps
CheckingtheTirePressure
ServiceInterval:Every50hoursormonthly,whichever
occursrst.
Checkthepressureatthevalvestem(Figure48).
Maintaintheairpressureinthereartiresat13psi(90
kPa).Uneventirepressurecancauseunevencut.Check
thetireswhentheyarecoldtogetthemostaccurate
pressurereading.
Note:Thefronttiresaresemi-pneumatictiresanddo
notrequireairpressuremaintenance.
Figure48
CheckingtheWheelHub
SlottedNut
ServiceInterval:Every100hours
Theslottednutneedstobetorquedto125ft-lb
(170N•m).
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethecotterpin.
4.Torquetheslottednutto125ft-lb(170N•m)
(Figure49).
Figure49
1.SlottedNut3.Holeinthreadedshaft
2.Twothreadsorless
showing
4.Washer(ifneeded)
5.Checkthedistancefrombottomofslotinnutto
insideedgeofhole.Twothreadsorlessshouldbe
showing(Figure49).
6.Ifmorethantwothreadsareshowingremovenut
andinstallwasherbetweenhubandnut.
7.Torquetheslottednutto125ft-lb.(170N•m)
(Figure49).
8.Tightenthenutuntilthenextsetofslotslineupwith
theholeintheshaft(Figure49).
9.Replacethecotterpin.
AdjustingtheCasterPivot
Bearing
ServiceInterval:Every500hours
1.DisengagethePTO,movethemotioncontrollevers
totheneutrallockedpositionandsettheparking
brake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
40