Craftsman 247.88045 Operator's Manual page 17

Checking Spark Plug
Checksparkplug yearlyor every 100operatinghours
1. Cleanarea aroundspark plug.
2. Remove and inspectspark plug.
3. Replace spark plug if porcelainis crackedor if electrodesare
pitted,burnedor fouledwith deposits
4. Checkelectrodegap with a feelergaugeand set gap to .030
(0.76ram)if necessary.See Figure15.
5. Reinstall spark plugand tightensecurely.
NOTE:A resistorsparkplug must be usedfor replacement. C ontacta
SearsPartsand RepairCenterfor a replacement s park plug.
Carburetor
If yoususpectyourcarburetorneedsadjusting,seea SearsParts and
RepairCenter.Engineperformanceshouldnotbe affectedat altitudes
up to 7,000feet (2,134meters).Foroperationat higherelevations,
contacta SearsPartsand RepairCenter.
Engine Speed
Avoidseriousinjuryor death,DO NOTmodifyenginein anyway.
Tamperingwith thegovernorsettingcancause the engineand
equipmentto operateat unsafespeeds.NEVERtamper with factory
settingof engine governor. R unningthe enginefasterthanthe speed
set at thefactory is dangerous.
LUBRICATION
Drive and Shifting Mechanism
At leastonce a seasonor after every 25 hoursof operation,remove
rear cover.Lubricateall chains,sprockets,gears, bearings,shafts,and
the shiftingmechanism.Useengineoil or a spray lubricant.Referto
Figure16.
NOTE:Be carefulnotto getany oil on thealuminumdriveplateor
rubberfrictionwheel.Doingso will hinderthe snowthrower'sdrive
system.Wipeoff anyexcessor spilledoil.
Wheels
At leastonce a season,removebothwheels.Cleanand coat the axles
with a multipurpose automotivegreasebeforereinstallingwheels.
Chute Directional Control
Oncea season,lubricatetheeye bolt bushingand the spiralwith
3-in-1oil.
Auger Shaft
At leastonce a season,removethe shearpinson augershaft. Spray
lubricantinsideshaft,and aroundthe spacersand flange bearings
foundat eitherend of the shaft. See Figure17.
3
II
II
1..030 (.76 ram)Gap
2. Electrodes
Porcelain
Figure15
J
f -'-,
,,, <¢_._ , , ,
,,,, _,,,
,,,, _ ,,, _ [
,, ,_ [
|¢
f
I
• • •L.i,
Figure16
Figure17
J
17