Toro 25430A - Stopping the Engine; Breaking in a New or Rebuilt Engine; Operating the Machine in Extreme Conditions

•Toincreasetheenginespeed,pushthethrottlecenter
buttonwhilepullingoutthethrottle(Figure22).
Figure22
1.Throttlebutton3.Throttlelock
2.Throttleknob
•Todecreasetheenginespeed,pushthethrottlecenter
buttonwhilepushinginthethrottle.
•Tonelyincreasetheenginespeed,rotatethethrottle
knobcounterclockwise.
•Tonelydecreasetheenginespeed,rotatethethrottle
knobclockwise.
StoppingtheEngine
1.Parkthemachineonlevelground,ifpossible.
Important:Ifyoumusttemporarilyparkthe
machineonaslopeoranincline,positionthe
machineatarightangletotheslope,withthe
frontofthemachinetowardthebottomofthehill.
Ensurethatthemachineisbehindanobjectthat
willnotmove.
2.Supportorlowerallattachmentstotheground.
3.Settheparkingbrake.
4.Ifthemachinehasbeenoperatingunderaheavyload,
decreasetheenginespeedto1/4throttlefor2minutes
toevenlycooltheengine.
5.PushthethrottlelevertotheSlowposition,andturn
thekeyswitchtotheOffposition.
6.Ifyouleavethemachineunattended,removethekey
fromtheignitionswitch.
BreakinginaNeworRebuilt
Engine
Duringtherst20hoursofoperationofaneworrebuilt
engine,dothefollowing:
•Keeptheengineatanormaloperatingtemperature.
•Donotruntheengineatlowidlespeedsforlongperiods
oftime.
•Operatethemachinewithnormalloadsfortherst8
hours.
•Donotusespecial“break-in”lubricatingoil.Usethe
speciedoil;refertoCheckingtheEngineOilLevel(page
23)andChangingtheEngineOilFilter(page39).
OperatingtheMachinein
ExtremeConditions
Bothhotandcoldweatherplaceunusualdemandsupon
themachineandtheattachments.Youcanminimize
temperature-relatedproblemsonthemachinebyperforming
thefollowingsteps:
HotWeather
1.Cleanalldirtanddebrisfromtheradiator,hydraulicoil
cooler,andengineareatoensurethatthereisproper
airowtocooltheengine.
2.Wipeanydebrisfromtheairinletsinthehoodside
panels.
3.Uselubricantsthathavethecorrectviscosity.
4.Checktheaircleanerdustvalvemorefrequentlyin
extremelydustyconditions.
5.Checktheconditionofthefandrivebelt.Replaceitif
itiscrackedorworn.
6.Operatethemachineatanappropriateenginespeed
andtransmissionrangefortheoperatingconditions;
donotoverloadtheengine.
7.Testtheradiatorcapbeforethehotweatherbegins;
replacethecapifitisdamaged.
8.Maintainthecorrectcoolantlevelinthereservoirand
intheradiator,andensurethatthereisamixtureof
50%ethyleneglycoland50%waterinthecooling
system.
ColdWeather
Operatingyourmachineincoldweatherrequiresspecial
attentiontopreventseriousdamagetothemachine.
Performingthefollowingprocedureswillextendtheservice
lifeofyourmachine:
1.Cleanthebatteryandensurethatitisfullycharged.
Note:Afullychargedbatteryat-17ºC(0ºF)has
only40%ofthenormalstartingpower.Whenthe
temperaturedecreasesto-29ºC(-20ºF),thebatteryhas
only18%ofthenormalpowerremaining.
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