General Recommendations; Engine Maintenance - Craftsman 247.776370 Operator's Manual

Alwaysstop engineand disconnectsparkplug wire beforeperforminc
I anymaintenanceor adjustments. A lwayswearsafety glassesduring
[operationor whileperformingany adjustments or repairs.
GENERAL RECOMMENDATIONS
,, Alwaysobservesafetyruleswhen performing
anymaintenance.
,, Thewarrantyon this chippershredderdoes notcover itemsthat
havebeensubjectedto operatorabuseor negligence. T o receive
full valuefrom warranty,operatormustmaintaintheequipmentas
instructedhere.
,, Someadjustments will haveto be madeperiodicallyto maintain
yourunit properly.
,, Periodicallycheckall fastenersand makesuretheseare 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 Figure11.
,, Replacethe spark plug if electrodesare pitted,burned,or the
porcelainis cracked.
Servicing the Air Cleaner
lDo not air solventsto cleanthe air cleaner cartridge.USe pressurized or 1
Theair cleanerpreventsdamagingdirt, dust,etc., fromenteringthe
carburetorand beingforced intothe engineand is importantto engine
lifeand performance. T heair cleanerconsistsof a pleatedfilterand
a pre-cleanerthat can be washedand reused.Neverrun the engine
withoutan air cleanercompletely assembled.
Cleanor replacetheair cleanerevery 25 hoursof operation.
1. Loosenscrewsthat hold the air filter cover.
2. Opencover and removecartridge.See Figure12.
3. Removepre-cleanerfrom thecartridge.Discardold cartridge.
4. Installnewcartridge.Installlip on pre-cleanerat the bottomof
cartridgepleats.
5. Closethe coverand tightenscrews.
NOTE:If thefilter istorn or damagedin anyway,replaceit.
f Electrode Porcelain
.030 (.76 mm) gap
\_, J
Figure11
Cartridge
Figure12
Check Engine Oil
1. Stopengineand wait severalminutesbeforecheckingoil level.
With engineon levelground,the oil mustbe to FULL markon
dipstick.
2. Removeoil fill dipstickand wipecleanwith cloth.
3. Replaceand tightendipstick.Removeand checkoil level. Level
shouldbe at FULLmark.
4. If needed,add oil slowly- recheck.Do notoverfill.
5. Wipe dipstickclean, replaceand tighten.Removeand checkoil
level.Oil levelshouldbe at FULL line on dipstick.
Donot overfil.Overfillingwith oil may causethe engineto not start,
or hard starting.If over the FULLmarkon the dipstick,drain oil to
reduceoil levelto FULLmark on dipstick.
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