Toro Groundsmaster 7210 Series - Cutting Grass with the Machine; Diesel Particulate Filter Regeneration

CuttingGrasswiththe
Machine
Note:Cuttinggrassataratethatloadstheengine
promotesDPFregeneration.
1.Movethemachinetothejobsite.
2.Wheneverpossible,setthethrottletohighidle.
3.EngagethePTOswitch.
4.Graduallymovethemotion-controllevers
forwardandslowlydrivethemachineoverthe
mowingarea.
5.Oncethefrontofthecuttingunitsareoverthe
mowingarea,lowerthecuttingunits.
6.Cutgrasssothatthebladescancutand
dischargeclippingsatahighratewhile
producingagoodqualityofcut.
Note:Ifthecuttingrateistoohigh,thequality
ofcutmaydeteriorate.Reducetheground
speedofthemachineorreducethewidthofcut
toregainhighidleenginespeed.
7.Whenthecuttingunitsareoverthefaredgeof
themowingarea,liftthecuttingunits.
8.Performatear-shapedturntoquicklylineupfor
yournextpass.
DieselParticulateFilter
Regeneration
Thedieselparticulatelter(DPF)ispartoftheexhaust
system.Thediesel-oxidationcatalystoftheDPF
reducesharmfulgassesandthesootlterremoves
sootfromtheengineexhaust.
TheDPFregenerationprocessusesheatfromthe
engineexhausttoincineratethesootaccumulatedon
thesootlter,convertingthesoottoash,andclears
thechannelsofthesootltersothatlteredengine
exhaustowsouttheDPF .
Theenginecomputermonitorstheaccumulationof
sootbymeasuringthebackpressureintheDPF.If
thebackpressureistoohigh,sootisnotincinerating
inthesootlterthroughnormalengineoperation.To
keeptheDPFclearofsoot,rememberthefollowing:
•Passiveregenerationoccurscontinuouslywhile
theengineisrunning—runtheengineatfull
enginespeedwhenpossibletopromoteDPF
regeneration.
•IfthebackpressureintheDPFistoohighora
resetregenerationhasnotoccurredfor100hours,
theenginecomputersignalsyouthroughthe
InfoCenterwhenresetregenerationisrunning.
•Allowtheresetregenerationprocesstocomplete
beforeshuttingofftheengine.
Operateandmaintainyourmachinewiththefunction
oftheDPFinmind.Engineloadathighidle(full
throttle)enginespeedgenerallyproducesadequate
exhausttemperatureforDPFregeneration.
Important:Minimizetheamountoftimethatyou
idletheengineoroperatetheengineatlow-engine
speedtohelpreducetheaccumulationofsootin
thesootlter.
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