Craftsman 247.88790 Manual Del Operador página 15

Changing OH
Changeengineoil after firsttwo hoursof operationand every 25 hours
thereafter,
in order to changeoil, youwill haveto first drain theused engineoil
fromthe engine andthen refillwith fresh oil
1, Drainoil whileengine is warm,Removeoil drain plug locatedat
the bottomof the recoilstarterof the engine,Catchoil in a suitable
container,
2, Whenengineis drainedof all oil, replacedrain plugsecurely,
3, Removethedipstickfrom the oil fill, For locationof the oil fill, see
Figure13,Pourfresh oil slowlythroughthe plug, Replacedipstick,
4, Checkand makesurethat the levelof oil is up to the FULLmarkon
the dipstick,
NOTE:Althoughmulti_viscosity o ils (5W30,10W30,etc,)improve
startingin cold weather,they couldalso resultin higheroil consump-
tion whenusedabove320R Checkyoursnowthrower'sengineoil
levelmorefrequentlyto avoidpossibleenginedamagefrom running
lowon oil
Figure 16
J
Check Chute Cables
Oncea seasonor every 25 hoursof operation,whicheveris earlier,
checkwhetherchute cables haveslackened,Adiustif necessary,
followinginstructionson page 19,
Check Spark P_ug
Checksparkplug yearlyor every 100operatinghours,
1, Cleanareaaroundthe spark plug base,
2, Removeand inspectthe spark plug,
3, Replacethe spark plug if electrodesare pitted,burned,fouledwith
depositsor the porcelainis cracked,
4, Checkelectrodegap with a feelergaugeand set gap to ,030
(O,76mm) i f necessary,
NOTE:A resistorspark plugmust be usedfor replacement, C ontacta
SearsPartsand RepairCenterfor a replacement s park plug,
Check
Augers
The augersare securedto the spiralshaftwith two shear pinsand
cotterpins, See Figure16,if you hit a foreignobiect or iceiam, the
snowthroweris designedso that the pins willshear,
1, if the augersdo notturn, checkto see if the pins havesheared,
2, Replacethe pins if needed,Two replacement s hearpinsand
cotterpins havebeen providedwith the snowthrower,Sprayan oil
lubricantintoshaft beforeinsertingnewpinsand securingwith new
cotterpins, See Figure16,
IMPORTANT:NEVERreplacethe auger shearpinswith standard
pins, Anydamageto the augergearboxor othercomponents,as
a resultof doing so, will NOTbe coveredby yoursnow thrower's
warranty,
Figure 17
Check Shave Pmate and Skid Shoes
The shaveplateand skid shoeson the bottomof the snow throwerare
subiectto wear,Checktheseperiodicallyand replaceas necessary,
Replacing Skid Shoe
1, Removefourcarriageboltsand lock nutswhich attachtwo skid
shoes to the snowthroweron two sides, See Figure17,
2, Reassemble newskid shoeswith the same hardware,Makecertain
the skid shoesare adjustedto be level,
RepJacing Shave Plate
1, After removingbothskid shoes,removefourcarriageboltsand lock
nutswhich attachshaveplateto the snowthrowerhousing,See
Figure17,
2, Reassemble newshaveplate,makingsure headsof the carriage
boltsare to the insideof the housing,Tightensecurely,Re-install
skid shoes,
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