Operator's Manual

Maintenance
RecommendedMaintenanceSchedule(s)
MaintenanceService
Interval
MaintenanceProcedure
Aftertherst25hours
•Changetheengineoil.
Beforeeachuseordaily
•Checktheengineoillevel.
•Cleandebrisfromtheaircleaner.
•Inspecttheaircleanerelements.
Every50hours
•Cleantheairlterelements.Cleanthemmorefrequentlyindustyoperating
conditions.
Every100hours
•Changetheengineoil.
•Adjustthebelt.
•Inspect,clean,andadjustthesparkplug;replaceitifnecessary.
Every200hours
•Replacethesparkplug.
Every300hours
•Replacethepaperaircleanerelement.Replaceitmorefrequentlyindustyoperating
conditions.
•Changetheeccentricoil.
Monthly
•Checktheeccentricoillevel.
Yearly
•Changetheeccentricoil.
DisconnectingtheSparkPlug
Wire
Beforeperforminganymaintenanceontheengine,disconnect
thesparkplugwirefromthesparkplug(Figure16).
Figure17
1.Sparkplugwire
ServicingtheAirCleaner
ServiceInterval:Beforeeachuseordaily—Inspecttheair
cleanerelements.
Every50hours—Cleantheairlterelements.Clean
themmorefrequentlyindustyoperatingconditions.
Every300hours/Yearly(whichevercomes
rst)—Replacethepaperaircleanerelement.Replace
itmorefrequentlyindustyoperatingconditions.
Important:Donotoperatetheenginewithouttheair
lterassembly;extremeenginedamagewilloccur.
1.Setthethrottletoslow ,stoptheengine,andwaitfor
allmovingpartstostop.
2.Models68072and68073only:raisethecover(Figure
8).
3.Disconnectthewirefromthesparkplug.
4.Removethenutthatsecuresthecover(
Figure18).
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