General Recommendations; Engine Maintenance - Craftsman 247.889210 Operator's Manual

Alwaysstopengine,disconnectspark plugwire, and groundagainst
/
_engne beforeperformng any type of ma ntenanceon yourmachne.
GENERAL RECOMMENDATIONS
• Alwaysobservesafetyruleswhenperformingany maintenance.
,, Thewarrantyon this lawnmowerdoesnot coveritemsthat have
beensubjectedto operatorabuseor negligence. T o receivefull
valuefrom warranty, o peratormust maintaintheequipmentas
instructedhere.
,, Changingof engine-governed speedwill voidenginewarranty.
,, All adjustmentsshouldbe checkedat leastonceeach season.
,, Periodically checkall fastenersand makesure theseare tight.
ENGINE MAINTENANCE
Checking the Spark Plug
Cleansparkplug and reset theelectrodegap to 0.030"at least oncea
season;replaceevery 100hoursof operation.
• Cleanareaaroundthe spark plug base.Do notsandblastspark
plug.Sparkplug shouldbe cleanedbyscrapingor wire brushing
and washingwith a commercialsolvent.
,, Removeand inspectthe spark plug.Checkgap to makesureit is
set at .030".See Figure12.
,, Replacethe spark plug if electrodesare pitted,burned,or the
porcelainis cracked.
Servicing the Air Cleaner
Theair cleanerpreventsdamagingdirt, dust,etc., fromenteringthe
carburetorand beingforced intothe engineand is importantto engine
lifeand performance. T he air cleanerconsistsof a foam elementand a
paperelementthat can be cleanedand reused.Neverrun the engine
withoutan air cleanercompletelyassembled.
Neverusegasolineor lowflash pointsolventsfor cleaningthe I
R
e ement.A f re or expos on coud resut.
1. Unfastenthe air cleanercase byslidingthe two fastenerstoward
the recoilstarter.
2. With two hands,pullingthe two latchestowardyou and upward
as shownin Figure13,separatetheair cleanercase from the air
cleanerbody.
Foam Element
• Cleanfoamelementafter first8 hoursof use, thenevery 25 hours
of usethereafter.See Figure14.
• Washthe elementin detergentand water,and dry it thoroughly.
Do notoil foamelement.
Paper Element
,, Cleanpaperelementafter first8 hoursof use, thenevery 100
hoursof usethereafter.See Figure14.
,, Cleantheelementby tappinggently to removedust. If verydirty,
replacethe element.
f --,,
Electrode Porcelain
14
.030 (.76 mm) gap
Figure12
,,.. J
Figure13
f
Cover
Foam PaperElement
Element
Figure14