Craftsman 247.370310 - Blade Care

DeckWash
Yourmower'sdeckisequippedwithawaterportonitssurfaceaspartofitsdeck
washsystem.
Usethedeckwashtorinsegrassclippingsfromthedeck'sundersideandprevent
thebuildupof corrosivechemicals.CompletethefollowingstepsAFTEREACH
MOWING:
Pushthe mowertoa level,clearspotonyourlawn,nearenoughfor your
gardenhoseto reach.Removethegrassbagif attached.
Makecertainthe mower'sdischargechute isdirectedAWAYfrom your
house,garage,parkedcars,etc.
2. Threadthehosecoupler(packagedwith yourmower'sOperator'sManual)
ontotheendofyourgardenhose.
3. Attachthehosecouplerto thewaterportonyourdeck'ssurface.SeeFigure
19.
4.
5.
6.
7.
8.
Turnthewateron.
Starttheengineasdescribedin theOperationsection.
Runtheenginefor aminimumof two minutes,allowingtheundersideofthe
cuttingdeckto thoroughlyrinse.
Releasebladecontrolto stoptheengineandblade.
Turnthewateroffanddetachthehosecouplerfromthewaterportonyour
deck'ssurface.
Aftercleaningyourdeck,restartthemower.Keeptheengineandbladerunning
foraminimumof two minutes,allowingtheundersideofthecuttingdeckto
thoroughlydry.
BladeCare
Whenremovingthe cutting bladefor sharpeningorreplacement,protect
your handswith apair of heavyglovesorusea heavyragto holdthe blade.
Periodicallyinspectthebladeadapterfor cracks,especiallyifyoustrikeaforeign
object.Replacewhennecessary.Followthestepsbelowfor bladeservice.
1. Disconnectsparkplugbootfromsparkplug.Turnmoweronitssidemaking
surethat theairfilter andthecarburetorarefacingup.
2. Removetheboltandthebladebellsupportwhichholdthebladeandthe
bladeadapterto theenginecrankshaft.SeeFigure20.
3. Removebladeandadapterfromthecrankshaft.
4. Removebladefromtheadapterfortestingbalance.Balancethebladeona
roundshaftscrewdrivertocheck.Removemetalfromtheheavysideuntil
it balancesevenly.Whensharpeningtheblade,followtheoriginalangleof
grind.Grindeachcuttingedgeequallytokeepthebladebalanced.
Anunbalancedbladewill causeexcessivevibrationwhenrotating at high
speeds.It maycausedamagetomowerandcouldbreakcausingpersonal
injury.
f
/
Figure19
J
.......................Blade_ellSup_
J
Figure20
.5. Lubricatetheenginecrankshaftandtheinnersurfaceofthebladeadapter
with light oil.Slidethebladeadapterontotheenginecrankshaft.Placethe
bladeontheadaptersuchthatthesideof theblademarked"Bottom"(or
with part number)facesthegroundwhenthe mowerisin theoperating
position.Makesurethatthebladeisalignedandseatedonthebladeadapter
flanges.SeeFigure20inset.
6. Placebladebellsupportontheblade.Alignnotchesonthebladebell
supportwith smallholesin blade.
7. Replacehexboltandtightenhexbolttotorque:450in. Ibs.min.,600in.Ibs.
max.
Toensuresafeoperationofyourmower,periodicallycheckthebladeboltforcorrect
torque.
17