Toro Z Master 4000 Series - Motion Control Assembly Replacement

CasterWheelAssembly(continued)
8.Torquethenutto101–110N•m(78±3in-lb)toseatthebearings,loosen,
thentorqueto27–35N•m(23±3in-lb).
Note:Makesurethattheaxledoesnotextendbeyondthenutoneither
sideofthewheelassembly.
9.Installthesealguardsontothewheelhubandassemblethewheelonto
thecasterfork.
10.Lowertheunitandverifyproperfunction.
Note:T opreventsealandbearingdamage,checkthebearingadjustment
often.Thetireshouldnotspinfreely(morethanoneortworevolutions)or
haveanysideplay.Ifthewheelspinsfreely,adjustthetorqueonthespacer
nutuntilthereisaslightamountofdrag.Reapplythreadlockingadhesiveto
thespacernut.
11.Connectthebatterybyinstallingthepositivecablerst,thenthenegative
cabletothebattery.
MotionControlAssemblyReplacement
MotionControlAssemblyRemoval
1.ParkthemachineonalevelsurfaceanddisengagethePTO.Stopthe
engine,waitforallmovingpartstostopandremovethekey.Engagethe
parkingbrake.
2.Disconnectthebatterybyremovingthenegativecablerst,thenthepositive
cablefromthebattery.
3.Removethesideconsole.RightConsoleReplacement(page5–11)Left
ConsoleReplacement(page5–13)
4.Raiseandsupporttheunitsothatthedrivewheelsareofftheground.
5.Removethe2boltssecuringthemotioncontrolhandletothemotioncontrol
assembly.
6.Removethe2screwssecuringthemotioncontrolcovertotheframe.
7.Disconnectthemotioncontroldamperfromthemotioncontrolassembly.
8.Disconnectthemotioncontrollinkagefromthetransmission.
Chassis:ServiceandRepairs
Page5–30
4000SeriesZMASTER®ServiceManual
3442-427RevA