Blade Care - Craftsman 247.887210 Operator's Manual

21" self propelled mower
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ADJUSTING
SHIFT LEVER CABLE
Periodicadjustmentof the six speedshiftcable maybe necessarydue
to normalwearon the cable.Adjustmentis neededif all six speedsdo
not work.The adjustablecablebracketis locatedon the left side of the
mowerbesidethe engine.See Figure17.
1.
Start engineand placeshift leverin the sixth speedposition.
2.
Stopengineand disconnectsparkplug wireand groundit against
engine.
3.
Loosenhex nutwhich securesthe adjustablecablebracket.See
Figure17.
4.
Pushbackon the adjustablecablebracket.
5.
Tightenhexnut.
BLADE
CARE
When removing the cutting bladefor sharpeningor replacement,
protectyour handswith a pair of heavyglovesor use a heavyrag to
holdthe blade.
Periodicallyinspectthe bladeadapterforcracks,especiallyif you
strikea foreignobject.Replacewhennecessary.Followthe steps
belowfor bladeservice.
1.
Disconnectsparkplug bootfrom sparkplug.Turnmoweron its
side makingsurethat theair filterand thecarburetorare facing
up.
2.
Removethebolt and the blade bell supportwhichhold the blade
and the bladeadapterto the enginecrankshaft.See Figure18.
NOTE: Whenremovingthe blade,bladeadapter,etc., be carefulnot
to removeor lose partsaboveit associatedwith the enginepulley.
3.
Removebladeand adapterfrom the crankshaft.See Figure18.
4.
Removebladefrom theadapterfortestingbalance.Balancethe
bladeon a roundshaft screwdriver to check. Removemetalfrom
the heavyside untilit balancesevenly.Whensharpeningthe
blade,follow the originalangleof grind.Grind eachcuttingedge
equallyto keepthe blade balanced.
An unbalancedblade willcause excessivevibrationwhenrotating
at high speeds.It may causedamageto mowerand couldbreak
causing personalinjury.
f
J
Figure17
Support
Bolt
Figure18
5.
Lubricatethe enginecrankshaftand theinner surfaceof the blade
adapterwith lightoil. Slide the bladeadapterontotheengine
crankshaft.Placethe bladeon the adaptersuchthat the sideof
the blademarked"Bottom"(or with part number)facesthe ground
whenthe moweris in the operatingposition.Makesurethatthe
bladeis alignedand seatedon the bladeadapterflanges.
6.
Placebladebell supporton the blade.Alignnotcheson the blade
bell supportwith small holesin blade.
7.
Replacehexboltand tightenhexbolt to torque:450 in. Ibs. rain.,
600 in. Ibs.max.
Toensuresafeoperationof yourmower,periodicallycheckthe blade
boltfor correcttorque.
BELT CARE
NOTE:Severalcomponentsmustbe removedin order to changethe
mower'sdrivebelt. See an authorizedSearsServiceCenterto have
your belt replaced.
17

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88721