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Maintenance(Continued)
BatteryService
New BatteryPreparation
1. Removethe battery from the carton.
2. Placethe battery in a well ventilated areaon a levelnon-
concrete surface.
3. Removethe battery cell caps. Fillthe cells as required
with electrolyte (supplied with battery) to the proper
level. Fillingthe battery with electrolyte will bring the
battery to 80% chargedstate.
4. With the cell caps removed,connectthe battery charger
to the batteryterminals; REDto positive (+) and BLACK
to negative(-) terminal.
IMPORTANT:Neverplaceanything in the battery other than
the specified electrolyte.
5. Slow chargethe battery at 1 amp for 2 hours to bring
the battery to full charge.
6. After charging, check the levelof electrolyte and add as
neededto bring to the proper fluid level.
7. Reinstallthe cell caps.
8. Install the battery into the power unit.
9. Connectthe positive (+) cable(red) first, from the wiring
harness to the positiveterminal (+) on the battery using
the bolt and nut provided in the hardwarebag. Connect
the negative (-) cable (black) last,to the negativetermi-
nal (-) on the battery using the bolt and nut. Apply a
small amount of greaseover the terminals to prevent
corrosion.
WARNING
DONOToverfill batterywithelectrolyte.Shieldthepositive
terminalwithterminalcoverlocatedonbatteryharness.This
preventsmetalfromtouchingthepositiveterminal,whichcould
causesparks.Theelectrolyte(acid)producesa highlyexplosive
gas.Keepall sparks,flameandfireawayfromareawhen
chargingbatteryor whenhandlingelectrolyteor battery.
Electrolyte(acid)isa highlycorrosiveliquid.Weareyeprotection.
Washaffectedareasimmediatelyafterhavingeyeor skincontact
with electrolyte(acid).Batteryacidiscorrosive.Rinseemptyacid
containerswithwaterandmutilatebeforediscarding.Ifacidis
spilledon battery,bench,or clothing,etc.,Flushwith clearwater
andneutralizewith bakingsoda.Neverattemptto chargebattery
whileinstalledonthewalkbehind.Neveruse"BOOST"chargers
onthebattery.
BatteryService
1. Removethe battery.
2. Placethe battery in a well ventilated areaon a level sur-
face.
3. Using distilled water, refill the cells as requiredto cover
the cell plates.
4. With the cell caps removed,connectthe battery charger
to the batteryterminals. Redto positive (+) terminal
and black to negative (-) terminal.
5. Slow chargethe battery at 1 amp for 10 hours.
6. If the battery will not accepta charge or is partially
chargedafter 10 hours of charging at 1 amp, replace
with a new battery.
BatteryStorage
If the Walk Behindis to be stored out of season on its rear
bumper, it is recommendedthe battery be removed,charged
and stored.
1. Removethe battery.
2. Perform battery service.
3. Bring the battery to full charge, if required.
4. Storethe battery in an area awayfrom the Walk Behind
on a wood surface. DONOTSTOREBATTERYONA
CONCRETESURFACE.
Battery Testing
Thereare two types of batterytests: Unloadedand Loaded.
Theunloaded test isthe procedurethat will be discussed. It's
the simplest and most commonly used. An unloadedtest is
madeon a batterywithout dischargingcurrent. Toperform
unloaded testing, checkcharge condition using either a
hydrometer or voltmeter.
.
.
Using a voltmeter,voltage readingsappear instantly to
show the stateof charge. Rememberto hookthe posi-
tive leadto the battery's positiveterminal, and the nega-
tive leadto the negativeterminal.
A hydrometer measuresthe specific gravity of eachcell.
Thespecific gravity tells the degreeof charge; generally,
a specific gravity of about 1.265 to 1.280 indicatesfull
charge. A readingof 1.230 to 1.260 indicatesthe battery
should be charged.The chart belowshows the charge
level asmeasured by syringe float hydrometer,digital
voltmeter and five ball hydrometer.
Methodsof CheckingBatteryCondition
State of Charge SyringeHydrometer Digital Voltmeter Five BallHydrometer
100% Chargedw/Sulfate Stop 1.280 12.80v FiveBallsFloating
100% Charged 1.265 12.60v Four Balls Floating
75% Charged 1.210 12.40v ThreeBalls Floating
50% Charged 1.160 12.10v Two Balls Floating
25% Charged 1.120 11.90v One Ball Floating
0% Charged Lessthan 1.100 Lessthan 11.80v Zero Balls Floating
m,
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19
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