Craftsman 88776 Lawn Mower User Manual


 
BLADE CARE
Periodicallyinspectthebladeadapterforcracks,especiallyifyou
strikea foreignobject.Replacewhennecessary.Followthe steps
belowforbladeservice.
Whenremovingthecuttingbladeforsharpeningor replacement,
protectyourhandswitha pairofheavyglovesor usea heavyragto
holdtheblade.
1. Disconnectsparkplugbootfromsparkplug.Turnmoweron its
sidemakingsurethattheair filterandthecarburetorarefacing
up.
2. Removethe boltandthebladebell supportwhichholdtheblade
andthebladeadaptertotheenginecrankshaft.See Figure18.
3. Removebladeandadapterfromthecrankshaft.
4. Removebladefromtheadapterfortestingbalance.Balancethe
bladeon a roundshaftscrewdrivertocheck.Removemetalfrom
theheavysideuntilitbalancesevenly.When sharpeningthe
blade,followtheoriginalangleofgrind.Grindeachcuttingedge
equallytokeepthebladebalanced.
oft
Figure18
Anunbalancedbladewillcauseexcessivevibrationwhenrotatingat
highspeeds.It maycausedamagetomowerandcouldbreakcausin(
personalinjury.
5. Lubricatetheenginecrankshaftandtheinnersurfaceoftheblade
adapterwithlightoil. Slidethebladeadapterontotheengine
crankshaft.Placethebladeontheadaptersuchthatthesideof
theblademarked"Bottom"(or withpartnumber)facestheground
whenthemowerisintheoperatingposition.Makesurethatthe
bladeisalignedandseatedon thebladeadapterflanges.
6. Placebladebellsupporton theblade.Alignnotcheson theblade
bellsupportwithsmallholesin blade.
7. Replacehexboltandtightenhexbolttotorque:450in.Ibs.rain.,
600in.Ibs.max.
Toensuresafeoperationofyourmower,periodicallychecktheblade
boltforcorrecttorque.
BELT CARE
NOTE:Severalcomponentsmustberemovedin ordertochangethe
mower'sself-propulsiondrivebelt.SeeanauthorizedSearsService
Centertohaveyourbeltreplaced.
REPLACING BATTERY
Batteriescontainsulfuricacidwhichmaycauseburns.Donotshort
Icircuitormutilatebatteriesin anyway.Donotputbatteriesin fireas
lthese mayburstorreleasetoxicmaterials.
1. Loosenstarknobssecuringupperandlowerhandlesand
carefullyfoldtheupperhandledowntowardthelowerhandleas
shownin Figure19.
2. Removethetwo screwssecuringbatterycovertobatteryhousing
andplacethemtotheside.See Figure19.
20
J
Figure19
+
Positive
,- Terminal
Negative
._rrninal
J
Figure20