Toro LT3340 - Engine Maintenance: Air Filter; Checking Air Filter Blockage Indicator; Replacing Primary Air Filter

EngineMaintenance
EngineSafety
•Shutofftheenginebeforecheckingtheoilor
addingoiltothecrankcase.
•Donotchangethegovernorspeedoroverspeed
theengine.
CheckingtheAir
Filter-BlockageIndicator
ServiceInterval:Beforeeachuseordaily
1.Openthehood.
2.Checktheairlter-blockageindicator(Figure
49).
Important:Iftheindicatorisred,inspectthe
primaryairlterandreplaceitifitisdirtyor
damaged;refertoReplacingthePrimaryAir
Filter(page41).
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Figure49
1.Filter-blockageindicator
3.Ifthelter-blockageindicatorisnotred,close
thehood.
ReplacingthePrimaryAir
Filter
ServiceInterval:Every500hours
Checktheair-cleanerbodyfordamagethatcould
causeanairleak.Replacetheair-cleanerbodyif
damaged.Checkthewholeintakesystemforleaks,
damage,orloosehoseclamps.
Note:Servicetheprimaryairlterwhenthe
lter-blockageindicator(Figure49)isred.Changing
theairlterfrequentlyincreasesthechanceofdirt
enteringtheenginewhenthelterisremoved.
Important:Besurethatthecoverisseated
correctlyandsealswiththeair-cleanerbody.
1.Beforeremovingtheair-ltercover,uselow
pressureair(40psi,cleananddry)tohelp
removelargeaccumulationsofdebrispacked
outsideoftheltercanister.
Note:Thiscleaningprocesspreventsdebris
frommigratingintotheintakewhenthelteris
removed.
Important:Avoidusinghigh-pressureair
whichcouldforcedirtthroughthelterinto
theintaketract.
g292455
Figure50
1.Air-ltercover3.Canister
2.Primaryairlter
4.Dirtejectionport
2.Removethecoverfromtheair-cleanerbody.
3.Removetheprimaryairlter(Figure50).
Important:Donotcleanandreuseaused
elementbecauseofpossibledamagetothe
lterelement.
4.Inspectthenewlterforshippingdamage,
checkingthesealingendofthelterandthe
body.
Important:Donotuseadamagedelement.
5.Insertthenewlterbyapplyingpressuretothe
outerrimoftheelementtoseatitinthecanister.
Important:Donotapplypressuretothe
exiblecenterofthelter.
6.Cleanthedirtejectionportlocatedintheair-lter
cover.Removetherubberoutletvalvefromthe
41