Figure13
1.Gearbox2.Check/llplug
CheckingtheTirePressure
ServiceInterval:Beforeeachuseordaily
Thetiresareover-inatedforshipping.Therefore,
releasesomeoftheairtoreducethepressure.The
correctairpressureinthefrontandreartiresis25-30
psi(172-207kPa).
Important:Maintainevenpressureinalltiresto
ensureagoodquality-of-cutandpropermachine
performance.
Do not under -inate.
CheckingtheTorqueoftheWheelNuts
orBolts
ServiceInterval:Aftertherst10hours
Every200hours
Failuretomaintainpropertorqueofthewheel
nutscouldresultinfailureorlossofwheeland
mayresultinpersonalinjury.
Torquethefrontwheelnutsandrearboltsto
85-100ft-lb(115-136N⋅ ⋅
⋅
m)after1-4hoursof
operationandagainafter10hoursofoperation.
Torqueevery200hoursthereafter.
AdjustingtheHeight-of-Cut
CenterCuttingUnit
Theheight-of-cutisadjustablefrom1to5inches(25
to127mm)in1/2inch(13mm)increments.Toadjust
theheight-of-cutonthefrontcuttingunit,positionthe
castorwheelaxlesintheupperorlowerholesofthe
castorforks,addorremoveanequalnumberofspacers
fromthecastorforks,andsecuretherearchaintothe
desiredhole.
1.Starttheengineandraisethecuttingunitssothat
theheight-of-cutcanbechanged.Stoptheengine
andremovethekeyafterthecuttingunitisraised.
2.Positionthecastorwheelaxlesinthesameholes
inallcastorforks.Refertothefollowingchartto
determinethecorrectholesforthesetting.
Figure14
1.Castorwheel4.Shims
2.Tensioningcap5.Axlemountingholes
3.Spacers
Note:Whenoperatingin2-1/2inch(64mm)
heightofcutorhigher,theaxleboltmustbe
installedinthelowercastorforkholetoprevent
grassbuildupbetweenthewheelandthefork.
Whenoperatinginheightofcutslowerthan2-1/2
inches(64mm)andgrassbuildupisdetected,
reversethemachinesdirectiontopullanyclippings
awayfromthewheel/forkarea.
3.Removethetensioningcapfromthespindleshaft
(Figure14)andslidethespindleoutofthecastor
arm.Putthe2shims(1/8inch[3mm])ontothe
spindleshaftastheywereoriginallyinstalled.These
shimsarerequiredtoachievealevelacrosstheentire
widthofthecuttingunits.Slidetheappropriate
numberof1/2inchspacers(refertothechart
24
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