DriveSystem
Maintenance
CheckingtheTirePressure
Checkthepressureatthevalvestemafterevery
50operatinghoursormonthly,whicheveroccursrst
(Figure27).
Maintaintheairpressureinthereartiresat12-14psi
(83-97kPa).Uneventirepressurecancauseanuneven
cut.
Note:Thefronttiresaresemi-pneumatictiresanddo
notrequireairpressuremaintenance.
Figure27
CoolingSystem
Maintenance
CleaningtheAirIntakeScreen
Beforeeachuseremoveanybuild-upofgrass,dirt
orotherdebrisfromthecylinderandcylinderhead
coolingns,airintakescreenonywheelend,and
carburetor-governorleversandlinkage.Thiswillhelp
insureadequatecoolingandcorrectenginespeedand
willreducethepossibilityofoverheatingandmechanical
damagetotheengine.
CleaningtheCoolingSystem
Cleantheairintakescreenfromgrassanddebrisbefore
eachuse.
Checkandcleancoolingnsandengineshroudsevery
100hoursoryearly,whichevercomesrst.
1.DisengagethePTOandsettheparkingbrake.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Removetheairintakescreen,recoilstarterandfan
housing(Figure28).
4.Cleanthedebrisandgrassfromtheengineparts.
5.Installairintakescreen,recoilstarterandfanhousing
(Figure28).
Figure28
1.Airintakescreen4.Bolt
2.Fanhousing5.Nut
3.Recoilstarter
27