Toro Field Pro 6040 - Page 195

Inspecting,Maintaining,andTestingtheBattery(continued)
post,oroverlling.Also,checkthebatterycasefordirtandoil.Cleanthe
batterywithasolutionofbakingsoda(sodiumbicarbonate)andwater,
thenrinseitwithcleanwater.
D.Checkthatthecoversealisnotbrokenaway.Replacethebatteryifthe
sealisbrokenorleaking.
IMPORTANT
Whenusingamaintainablebattery,ensurethattheareaaround
thebatterycapsiscleanbeforeopeningthecaps.
E.Whenusingamaintainablebattery,checktheelectrolytelevelineach
cell.Ifthelevelisbelowthetopsoftheplatesinanycell,llallthecells
withdistilledwaterbetweentheminimumandmaximumlllines.Charge
at15to25Afor15minutestoallowsufcientmixingoftheelectrolyte.
2.Whenusingamaintainablebattery,performthehydrometertestofthe
battery-electrolyte.
IMPORTANT
Makesuretheareaaroundthebatterycapsiscleanbeforeopening
thecaps.
A.Useahydrometertomeasurethespecicgravityofeachcell.Pullthe
electrolyteinandoutofthehydrometerbarrelbeforetakingareading
towarm-upthehydrometer.Atthesametime,takethetemperatureof
thecell.
B.Temperaturecorrecteachcellreading.Foreach6°C(10°F)above27°C
(80°F)add0.004tothespecicgravityreading.Foreach6°C(10°F)
below27°C(80°F)subtract0.004fromthespecicgravityreading;refer
toT emperatureCorrectingSpecicGravity(MaintainableBattery)(page
6–30).
C.Ifthedifferencebetweenthehighestandlowestcellspecicgravityis
0.050ormoreorthelowestcellspecicgravityislessthan1.225,charge
thebattery.
D.ChargeattherateandtimegiveninBatteryChargeRate(page6–33)
oruntilallcellsspecicgravityis1.225orgreaterwiththedifference
inspecicgravitybetweenthehighestandlowestcellbeinglessthan
0.050.Ifyoucannotmeetthesechargingconditions,replacethebattery.
3.Doahigh-dischargetestwithanadjustableloadtester.Thisisaveryreliable
meansoftestingabatteryasitsimulatesthebatterycold-crankingcapacity.
Acommercialbatteryloadtesterisrequiredtodothistest.
CAUTION
Followthemanufacturer'sinstructionswhenusingabatteryload
tester.
A.Checkthevoltageacrossthebatteryterminalsbeforetestingthebattery.
Ifthevoltageislessthan12.0VDC,chargethebatterybeforecontinuing
thetest.
FieldPro®6040
Page6–31
ElectricalSystem:ServiceandRepairs
22267SLRevA