Exmark NAVIGATOR User Manual

Maintenance
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Carefullycleanareaaroundlter.Itisimportant
thatnodirtorcontaminationenterhydraulic
system.
3.Unscrewltertoremoveandallowoiltodrain
fromreservoir.
Important:Beforereinstallingnewlter,ll
itwithExmarkPremiumHydrooilandapply
athincoatofoilonthesurfaceoftherubber
seal.
Turnlterclockwiseuntilrubbersealcontactsthe
lteradapter,thentightenthelteranadditional
2/3to3/4turn.
4.FillreservoirasstatedinCheckHydraulicOil
Levelsection.
ExmarkPremiumHydroOilisrecommended.
Refertothechartforanacceptablealternative:
HydroOil
ChangeInterval
ExmarkPremiumHydro
Oil(Preferred)
Afterrst100hours
*Every500hours/yearly
thereafter
Mobil115W50Afterrst100hours
*Every250hours/yearly
thereafter
*Mayneedmoreoftenundersevereconditions.
5.Raisetherearofmachineupandsupportwith
jackstands(orequivalentsupport)justhigh
enoughtoallowdrivewheelstoturnfreely.
6.Startengineandmovethrottlecontrolaheadto
fullthrottleposition.Movethespeedcontrol
leverstothefullspeedandrunforseveral
minutes.Shutdownmachineandrecheckoil
level.
Note:DoNotchangehydraulicsystemoil(except
forwhatcanbedrainedwhenchanginglter),unless
itisfelttheoilhasbeencontaminatedorbeen
extremelyhot.
Changingoilunnecessarilycoulddamagehydraulic
systembyintroducingcontaminatesintothesystem.
CheckWheelHubLocknuts
ServiceInterval:Aftertherst100hours
Every500hoursthereafter
Torqueto275–350ft-lb(373–475N-m).
CheckWheelLugNuts
ServiceInterval:Aftertherst100hours
Every500hoursthereafter
Torqueto85-105ft-lb(122-129N-m)crosspattern.
FuelTank—Mounting
HardwareSpecications
ServiceInterval:Asrequired
Wheninstallingthenutsonthefueltankstuds,fully
tightenthenylocnutandbackoff1/2turn.This
allowsfornormalfueltankexpansionandcontraction
withchangesintemperatureandfuellevels.
ThreadLockingAdhesives
Threadlockingadhesivessuchas“Loctite242”
or“Fel-Pro,Pro-LockNutType”areusedonthe
followingfasteners:
•Pumpdrivesheavesetscrews.
•SquareheadsetscrewsonHydropumpcontrol
arms.
•Sheaveretainingboltintheendofengine
crankshaft,blowershaftandjackshaft.
•Casterwheelspacernuts.
•Fueltankbulkheadttingnuts.
Adhesivessuchas“LoctiteRC/609orRC/680”or
“Fel-ProPro-LockRetainingIorRetainingII”are
usedonthefollowing:
Fueltankstuds,wherestudsareinsertedintotank.
DielectricGrease
Dielectricgreaseisusedonallbladetypeelectrical
connectionstopreventcorrosionandlossofcontact.
Dielectricgreaseshouldnotbeappliedtosealed
connectors.
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Exmark NAVIGATOR Specifications

General

Drive System	Hydrostatic
Deck Construction	Fabricated
Transmission	Hydrostatic
Deck Material	Steel
Turning Radius	Zero-turn
Cutting Width	42 in
Blade Tip Speed	18, 500 fpm
Engine Type	V-Twin