Engine Maintenance - Craftsman 247.77605 Operator's Manual

MAINTENANCE SCHEDULE
Beforeperforming anytypeof maintenance/service, disengage all
controls and stoptheengine.Waituntilall moving partshavecometo
a complete stop.Disconnect sparkplugwireandgrounditagainstthe
enginetoprevent u nintended starting. A lways wearsafety glassesduring
operation or whileperforming anyadjustments o r repairs.
Followthe maintenanceschedulegivenbelow.This chart describes
serviceguidelinesonly. Usethe ServiceLog columnto keeptrackof
completedmaintenance tasks.To locatethe nearest Sears Service
Centeror to scheduleservice,simplycontactSears at
1-800-4-MY-HOME®.
EachUse
1st5 - 8 hours
25 hours
Annuallyor 50 hours
Annuallyor 100 hours
BeforeStorage 1. Fuelsystem
Underheavyload or in high temperatures
.
2.
3.
1.
1.
2.
3.
1.
2.
1.
Engineoil level
Looseor missinghardware
Unit and engine.
Engineoil
Engineoill-
Air cleaner
Controllinkagesand pivots
Engineoil
Muffler
Sparkplug
1. Check
2. Tightenor replace
3. Clean
1. Change
1. Change
2. Replace
3. Lubewith lightoil
1. Change
2. Inspect
1. Clean,checkand resetgap,or
replacesparkplug.
1. Runengineuntilit stopsfrom lackof
fuel or add a gasolineadditiveto the
gas in thetank.
Alwaysstopengine and disconnectsparkplug wire beforeperforming
I anymaintenanceor adjustments. A lwayswear safetyglassesduring
_operation or whileperforminganyadjustmentsor repairs.
GENERAL RECOMMENDATIONS
• Alwaysobserveall safety rulesfoundon productlabelsand in
this operator'smanualwhenperformingany maintenance. S afety
rulescan be foundon the productlabelsand in this Operator's
Manualbeginningon page3.
• Thewarrantyon this chippershredderdoes notcover itemsthat
havebeen subjectedto operatorabuseor negligence. T o receive
fullvalue fromwarranty,operatormustmaintainthe equipmentas
instructedhere.
• Someadjustmentswillhaveto be madeperiodicallyto maintain
yourunit properly.
• Periodically checkall fastenersand makesuretheseare tight.
ENGINE MAINTENANCE
Checking the Spark Plug
Cleansparkplug and reset theelectrodegap to 0.030"at least oncea
season;replaceevery 100hoursof operation.
f
Electrode
Porcelain
,L
.030 (.76 mm) gap
Figure 11
• Cleanarea aroundthe sparkplug base. Donot sandblastspark
plug. Sparkplugshouldbe cleanedby scrapingor wirebrushing
and washingwith a commercialsolvent.
Removeand inspectthe sparkplug.Checkgap to make sureit is
set at .030".See Figure11.
Replacethe sparkplug if electrodesare pitted,burned,or the
porcelainis cracked.
14