Toro GrandStand 74558 - Adjusting the Electric Clutch; Cooling System Maintenance; Cleaning the Air Intake Screen; Cleaning the Cooling System

2.Removeonebushing,thenpullthespannerbushing
androllerbearingoutofthewheelhub(Figure56).
3.Removetheotherbushingfromthewheelhub
andcleananygreaseanddirtfromthewheelhub
(Figure56).
4.Inspecttherollerbearing,bushings,spannerbushing
andinsideofthewheelhubforwear.Replaceany
defectiveorwornparts(Figure56).
5.Toassemble,placeonebushingintothewheelhub.
Greasetherollerbearingandspannerbushingand
slidethemintothewheelhub.Placethesecond
bushingintothewheelhub(Figure56).
6.Installthecasterwheelintothecasterforkand
securewiththewheelboltandlocknut.Tightenthe
locknutuntilthespannerbushingbottomsagainst
theinsideofthecasterforks(Figure56).
7.Greasethettingonthecasterwheel.
AdjustingtheElectricClutch
ServiceInterval:Every100hours—Checktheelectric
clutch.
Theclutchisadjustabletoensureproperengagement
andproperbraking.
1.Inserta0.015–0.021inch(0.381–0.533mm)feeler
gaugethroughoneinspectionslotinthesideofthe
assembly.Makesureitisbetweenthearmatureand
therotorfrictionsurfaces.
2.Tightenthelocknutsuntilthereisslightbindingon
thefeelergaugebutitcanbemovedeasilywithinthe
airgap(Figure57).
3.Repeatthisfortheremainingslots.
4.Checkeachslotagainandmakeslightadjustments
untilthefeelergaugebetweentherotorandarmature
withveryslightcontactbetweenthem.
Figure57
1.Adjustingnut3.Feelergauge
2.Slot
CoolingSystem
Maintenance
CleaningtheAirIntakeScreen
ServiceInterval:Beforeeachuseordaily
Beforeeachuseremoveanybuild-upofgrass,dirt
orotherdebrisfromthecylinderandcylinderhead
coolingns,airintakescreenonywheelend,and
carburetor-governorleversandlinkage.Thiswillhelp
insureadequatecoolingandcorrectenginespeedand
willreducethepossibilityofoverheatingandmechanical
damagetotheengine.
CleaningtheCoolingSystem
ServiceInterval:Every100hours—Checkandclean
enginecoolingnsandshrouds.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removetheairintakescreenandfanhousing
(Figure58).
4.Cleanthedebrisandgrassfromtheengineparts.
5.Installairintakescreen,recoilstarterandfanhousing
(Figure58).
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