YanmarEngine:Models30885and30887
g307586
Figure10
TheengineusedonGroundsmastermodels30885and30887isaYanmar
TNVSeries,turbocharged,dieselenginethatcomplieswithEPATier4nal
emissionregulations.TheT4enginefeaturesincludeanelectroniccontrolunit
(ECU)thatcontrolsacommonrail,directfuelinjectionsystem,water−cooled
exhaustgasrecirculation(EGR),anexhaustsystemdieseloxidationcatalyst
(DOC)andanexhaustdieselparticulatelter(DPF)withactiveregeneration.
Glowplugsareusedtoassiststartingtheengine.Numerousenginesensors
areusedtoallowtheengineECUtomonitorandcontrolengineoperationfor
optimumengineperformance.
Duringtheoperationoftheengine,ifconditionswarrant,theengineECUmay
generateanenginefault.UsethemachineInfoCentertoidentifytheengine
fault;refertotheYanmarTroubleshootingManual,orcontactanAuthorized
ToroDistributorforassistance.
YanmarDieselEngine:GeneralInformation
Page4–6
Groundsmaster
®
4500-D/4700-D
19245SLRevA