Craftsman 247.28919 Lawn Mower User Manual


 
If yourtractorhasnot beenputintousefor anextendedperiodof time,
chargethebatteryas follows:
1. Setyourbatterychargertodelivera maxof 10amperes.
If yourbatterychargerisautomatic,chargethebatteryuntilthe
chargerindicatesthatchargingis complete.Ifthe chargerisnot
automatic,chargefornofewerthaneighthours.
FUSE
One20AMPfuseis installedin yourtractor'swiringharnessto protect
the tractor'selectricalsystemfromdamagecausedbyexcessive
amperage.
If theelectricalsystemdoesnotfunction,or yourtractor'senginewill
not crank,first checktobe certainthatthe fusehasnot blown.It can
befoundat therearof theunit,underneaththefenderlocatedby the
battery.
Alwaysusea fusewiththe sameamperagecapacityforreplacement.
CUTTING BLADES
Shuttheengineoff andremoveignitionkeybeforeremovingthe
cuttingblade(s)for sharpeningor replacement.Protectyourhands
by usingheavygloveswhengraspingthe blade.
Periodicallyinspectthebladeand/or spindleforcracksordamage,
especiallyafter you'vestrucka foreignobject. Donotoperatethe
machineuntil damagedcomponentsare replaced.
Toremovetheblades,proceedas follows.
1. Removethedeckfrombeneaththe tractor,(referto CuttingDeck
Removalearlierinthis section)thengentlyflip thedeckoverto
exposeitsunderside.
2. Placea blockof woodbetweenthe centerdeckhousingbaffle
andthe cuttingbladetoactas a stabilizer.
SeeFig.21.
f
.
4.
Removethe hexflangenut thatsecuresthe bladetothespindle
assembly.SeeFig.21.
To properlysharpenthe cuttingblades,removeequalamounts
of metalfrombothendsofthe bladesalongthe cuttingedges,
paralleltothetrailingedge,ata250.to 300angle.Alwaysgrind
eachcuttingbladeedgeequallyto maintainproperbladebalance.
SeeFig.22.
Figure 22
Ifthe cuttingedgeofthe bladehas previouslybeensharpened,or if
any metalseparationis present,replacethe bladeswith newones.
A poorlybalancedbladewill causeexcessivevibration,maycause
damagetothetractorand/orresultin personalinjury.
5. Testthe blade'sbalanceusinga bladebalancer.Grindmetal
from the heavysideuntilit balancesevenly.
NOTE: Whenreplacingthe blade,be sureto installthebladewiththe
sideofthe blademarked"Bottom"(orwitha part numberstampedin
it)facingthe groundwhenthemoweris inthe operatingposition.
Usea torquewrenchto tightenthe bladespindlehexflangenut to
between70Ibs-ftand 90Ibs-ft.
CHANGING THE DECK BELT
Besureto shutthe engineoff,removeignitionkey,disconnectthe
Isparkplugwire(s)andgroundagainstthe enginetopreventunin-
ltended startingbeforeremovingthebelt.
All beltsonyourtractoraresubjecttowearandshouldbereplacedif
any signsof wearare present.