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Maintenance(Continued)
BatteryService
New BatteryPreparation
1. Remove the battery from the carton.
2. Placethe battery in a well ventilated area on a level non-
concrete surface.
3. Remove the battery cell caps. Fill the cells as required
with electrolyte (supplied with battery) to the proper
level. Filling the battery with electrolyte will bring the
battery to 80% charged state.
4. With the cell caps removed, connect the battery charger
to the battery terminals; REDto positive (+) and BLACK
to negative (-) terminal.
IMPORTANT:Neverplace anything in the battery other than
the specified electrolyte.
5. Slow charge the battery at 1 amp for 2 hours to bring
the battery to full charge.
6. After charging, check the level of electrolyte and add as
neededto bring to the proper fluid level.
7. Reinstall the cell caps.
8. Install the battery into the power unit.
9. Connect the positive (+) cable (red) first, from the wiring
harness to the positive terminal (+) on the battery using
the bolt and nut provided in the hardware bag. Connect
the negative (-) cable (black) last, to the negativetermi-
nal (-) on the battery using the bolt and nut. Apply a
small amount of grease over the terminals to prevent
corrosion.
WARNING
DONOToverfill batterywithelectrolyte.Shieldthe positive
terminalwithterminalcoverlocatedonbatteryharness.This
preventsmetalfrom touchingthe positiveterminal,which could
causesparks.Theelectrolyte(acid)producesa highlyexplosive
gas.Keepall sparks,flameandfire awayfrom areawhen
chargingbatteryor whenhandlingelectrolyteor battery.
Electrolyte(acid)is a highlycorrosiveliquid.Weareyeprotection.
Washaffectedareasimmediatelyafterhavingeyeor skincontact
with electrolyte(acid).Batteryacid is corrosive.Rinseemptyacid
containerswithwaterandmutilatebeforediscarding.If acidis
spilledon battery,bench,or clothing,etc.,Flushwith clearwater
andneutralizewith bakingsoda.Neverattemptto chargebattery
while installedonthe walk behind.Neveruse"BOOST"chargers
onthe battery.
BatteryService
1. Removethe battery.
2. Place the battery in a well ventilated areaon a level sur-
face.
3. Using distilled water, refill the cells as required to cover
the cell plates.
4. With the cell caps removed, connect the battery charger
to the battery terminals. Redto positive (+) terminal
and black to negative (-) terminal.
5. Slow charge the battery at 1 amp for 10 hours.
6. If the battery will not accept a charge or is partially
charged after 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. Store the battery in an area awayfrom the Walk Behind
on a wood surface. DO NOT STOREBATTERYON A
CONCRETESURFACE.
Battery Testing
There are two types of battery tests: Unloaded and Loaded.
The unloaded test is the procedure that will be discussed. It's
the simplest and most commonly used. An unloadedtest is
made on a battery without discharging current. To perform
unloaded testing, check charge condition using either a
hydrometer or voltmeter.
.
.
Using a voltmeter, voltage readings appear instantly to
show the state of charge. Rememberto hook the posi-
tive leadto the battery's positive terminal, and the nega-
tive leadto the negative terminal.
A hydrometer measuresthe specific gravity of each cell.
The specific gravity tells the degree of charge; generally,
a specific gravity of about 1.265 to 1.280 indicates full
charge. A readingof 1.230 to 1.260 indicates the battery
should be charged. The chart below shows the charge
level as measured by syringe float hydrometer, digital
voltmeter and five ball hydrometer.
Methodsof CheckingBattery Condition
State of Charge SyringeHydrometer Digital Voltmeter Five Ball Hydrometer
100% Chargedw/Sulfate Stop 1.280 12.80v FiveBalls Floating
100% Charged 1.265 12.60v Four Balls Floating
75% Charged 1.210 12.40v Three Balls 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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