Exmark NAVIGATOR User Manual

Maintenance
settings).ThisisespeciallyimportantonKohler
EFI(ElectronicFuelInjection)units.Failureto
dosomaydamagetheECU(ElectronicControl
Unit).
Voltage
Reading
Percent
Charge
Maximum
Charger
Settings
Charging
Interval
12.6or
greater
100%
16volts/7
amps
No
Charging
Required
12.4–12.675–100%
16volts/7
amps
30Minutes
12.2–12.450–75%
16volts/7
amps
1Hour
12.0–12.225–50%
14.4volts/4
amps
2Hours
11.7–12.00–25%
14.4volts/4
amps
3Hours
11.7orless
0%
14.4volts/2
amps
6Hoursor
More
Important:ForKohlerEFIunits:Unplugthe
harnessfromtheECUbeforeperformingany
weldingontheequipment.
RecommendedJump
StartingProcedure
ServiceInterval:Asrequired
1.Checktheweakbatteryforterminalcorrosion
(white,green,orblue“snow”),itmustbecleaned
offpriortojumpstarting.Cleanandtighten
connectionsasnecessary.
CAUTION
Corrosionorlooseconnectionscancause
unwantedelectricalvoltagespikesatanytime
duringthejumpstartingprocedure.
DoNotattempttojumpstartwithlooseor
corrodedbatteryterminalsordamagetothe
engineorEFImayoccur.
DANGER
Jumpstartingaweakbatterythatiscracked,
frozen,haslowelectrolytelevel,oran
open/shortedbatterycell,cancausean
explosionresultinginseriouspersonalinjury.
DoNotjumpstartaweakbatteryifthese
conditionsexist.
2.Makesuretheboosterisagoodandfullycharged
leadacidbatteryat12.6voltsorgreater.Use
properlysizedjumpercables(4to6AWG)with
shortlengthstoreducevoltagedropbetween
systems.Makesurethecablesarecolorcodedor
labeledforthecorrectpolarity.
CAUTION
Connectingthejumpercablesincorrectly
(wrongpolarity)canimmediatelydamagethe
electricaland/orEFIsystem.
Becertainofbatteryterminalpolarityand
jumpercablepolaritywhenhookingup
batteries.
Note:Thefollowinginstructionsareadapted
fromtheSAEJ1494Rev .Dec.2001–Battery
BoosterCables–SurfaceVehicleRecommended
Practice(SAE–SocietyofAutomotive
Engineers).
WARNING
Batteriescontainacidandproduceexplosive
gases.
•Shieldtheeyesandfacefromthebatteries
atalltimes.
•DoNotleanoverthebatteries.
Note:Besuretheventcapsaretightandlevel.
Placeadampcloth,ifavailable,overanyvent
capsonbothbatteries.Besurethevehiclesdo
nottouchandthatbothelectricalsystemsare
offandatthesameratedsystemvoltage.These
instructionsarefornegativegroundsystemsonly.
3.Connectthepositive(+)cabletothepositive(+)
terminalofthedischargedbatterythatiswiredto
thestarterorsolenoidasshowninFigure17.
32

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