Toro 74991 Z Master Professional 5000 Series - Adjusting the Caster-Pivot Bearing

AdjustingtheCaster-Pivot
Bearing
ServiceInterval:Every500hours/Yearly(whichevercomes
rst)
1.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheNEUTRAL-LOCKposition,
andsettheparkingbrake.
2.Shutofftheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removethedustcapfromcasterandtightenthe
locknut(Figure70).
4.Tightenthelocknutuntilthespringwashersareat,
andthenbackoffa1/4turntoproperlysetthepreload
onthebearings(Figure70).
Important:Makesurethatthespringwashersare
installedcorrectlyasshowninFigure70.
5.Installthedustcap(Figure70).
Figure70
1.Springwashers
3.Dustcap
2.Locknut
UsingtheClutchShim
Somelatermodelyearunitshavebeenbuiltwithclutchesthat
containabrakeshim.Whentheclutchbrakehasworntothe
pointwheretheclutchnolongerengagesconsistently,you
canremovetheshimtoextendtheclutchlife.
Figure71
1.Armature5.Brakespacer
2.Fieldshell6.Regapshim
3.Rotor7.Brakepole
4.Brake-mountingbolt
RemovingtheClutchShim
1.Shutofftheengine,waitforallmovingpartstostop,
andremovethekey.
2.Engagetheparkingbrakeandwaitformachinetocool
completely.
3.Usinganaircompressor,blowoutanydebrisunderthe
brakepoleandaroundthebrakespacers.
Figure72
4.Checktheconditionofthewire-harnessleads,
connectors,andterminals.Cleanorrepairthemas
necessary.
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