Craftsman 88846 - Professional 420 CC 45" 2 Stage Snow Thrower Operator's Manual page 17

MAINTENANCE SCHEDULE
Beforeperforming anytypeof maintenance/service, disengage all
controls and stoptheengine.Waituntilall moving partshavecometo a
complete stop.Remove thekeyto prevent u nintended starting. A lways
wearsafetyglasses duringoperation or whileperforming anyadjustments
or repairs.
Followthe maintenanceschedulegivenbelow.This chart describes
serviceguidelinesonly. Usethe ServiceLog columnto keeptrackof
completedmaintenance tasks.To locate the nearest Sears Service
Centeror to scheduleservice,simplycontactSears at
1-800-4-MY-HOME®.
EachUse
1st5 - 8 hours
25 hours
50 hours
Annuallyor 100 hours
BeforeStorage 1. Fuelsystem
Underheavyload or in high temperatures
1. Engineoil level
2. Looseor missinghardware
3. Unit and engine.
1. Engineoil
1. Engineoi11-
2. Controllinkagesand pivots
1. Engineoil
1. Sparkplug
= =
1. Check
2. Tightenor replace
3. Clean
1. Change
1. Change
2. Lubewith lightoil
1. Change
1. Cleanand re-gap,orelse replace
with new plug.
1. Runengineuntilit stopsfrom lackof
fuel or add a gasolineadditiveto the
gas in thetank.
ENGINE MAINTENANCE
Checking Engine Oil
Beforelubricating, r epairing, o r inspecting, d isengageall controlsand
stopengine.Waituntilall movingpartshavecometo a completestop.
Removethekey to prevent u nintended firingofthe engine.
NOTE: Checktheoil levelbeforeeachuseto be surecorrectoil level
is maintained.
Whenaddingoil to the engine,referto viscositychart below.Engineoil
capacityis approximately 37 ounces.Donot over-fill.Usea 4-stroke,
or an equivalenthighdetergent,premiumquality motoroil certified
to meet or exceedU.S.automobilemanufacturer's requirements for
serviceclassification SG, SR MotoroilsclassifiedSG, SFwill show
this designationon the container.
1. Removethe oil fillercap/dipstickand wipethe dipstickclean.
2. Insertthe cap/dipstickintothe oil filler neck,butdo not screwit in.
3. Removethe oil fillercap/dipstick.If levelis low, slowlyadd oil until
oil levelregistersbetweenhigh (H) and low (L). See Figure16.
4. Replaceand tighten cap/dipstickfirmlybeforestartingengine.
Figure16
Changing Engine Oil
J
NOTE:Changethe engineoil after thefirst 5 hoursof operationand
once a seasonor every50 hoursthereafter.
1. Drainfuel from tank by runningengine untilthefuel tank is empty.
Be surefuel fill capis secure.
2. Placesuitableoil collectioncontainerunderoil drain plug.
3. Removeoil drain plug.See Figure17.
4. Tip engineto drain oil intothe container.Usedoil mustbe
disposedof at a propercollectioncenter.
17