Figure42
CleaningtheBlowerHousing
Every100hours/Yearly(whichevercomesrst)
Toensurepropercooling,makesurethegrassscreen,cooling
ns,andotherexternalsurfacesoftheenginearekeptclean
atalltimes.
Annually,orevery100hoursofoperation(moreoften
underextremelydusty,dirtyconditions),removetheblower
housing,andanyothercoolingshrouds.Cleanthecooling
nsandexternalsurfacesasnecessary.Makesurethecooling
shroudsareinstalled.
Important:Operatingtheenginewithablockedgrass
screen,dirtyorpluggedcoolingns,and/orcooling
shroudsremoved,willcauseenginedamagedueto
overheating.
FuelSystem
Maintenance
DANGER
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areorexplosion
fromgasolinecanburnyouandothersandcan
damageproperty.
•Performanyfuelrelatedmaintenancewhenthe
engineiscold.Dothisoutdoorsinanopenarea.
Wipeupanygasolinethatspills.
•Neversmokewhendraininggasoline,andstay
awayfromanopenameorwhereasparkmay
ignitethegasolinefumes.
ReplacingtheFuelFilter
ServiceInterval:Every100hours/Yearly(whichevercomes
rst)(moreoftenunderdusty,dirty
conditions).
1.Disengagetheblade-controlswitch(PTO),movethe
motion-controlleverstotheneutral-lockposition,and
settheparkingbrake.
2.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
34