Craftsman 88835 Operation Manual - Page 20

Adjustment, Lubrication

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5. Afterthe sparkplug is seated,tightenwith a spark plugwrenchto compressthe washer. NOTE:Wheninstallinga newsparkplug,tighten 1/2-turnafter the spark plugseatsto compressthe washer.Whenreinstallinga used spark plug,tighten 1/8-to 1/4-turnafter the sparkplug seatsto compressthe washer. hot and can ine. CARBURETOR ADJUSTMENT Thecarburetoris notuseradjustable.ContactSearsParts& Repairfor adjustment. LUBRICATION Drive and Shifting Mechanism At least oncea seasonor after every25 hoursof operation,remove rear cover.Lubricateall chains,sprockets,gears,bearings,shafts,and the shiftingmechanism.Useengineoil or a spray lubricant.Referto Figure22. NOTE:Beforetippingthe unit on the front housing,run thefuel tank emptyso fueldoes notleak outof thefuel cap. 1. Carefullypivotthe snowthrowerup and forwardso that it restson theauger housing. 2. Removethe frame coverfrom the undersideof the snow thrower by removingthe self-tappingscrewswhich secureit. Referto Figure27. 3. Applya lightcoatingof engineoil (or 3-in-1oil) to the hexshaft. See Fig. 22. Wheels At leastoncea season,removebothwheels.Cleanand coat the axles with a multipurposeautomotivegreasebeforereinstallingwheels. Chute Directional Control Once a season,lubricatethe eyebolt bushingand the spiralwith 3-in-1 oil. Auger Shaft At leastoncea season,one at a time, removeall of theshearpins from the auger shaft.Spraylubricantinsidethe hub of eachauger spiralassemblyand aroundthe spacerson the augershaft. Greasefittings can alsobe foundat each end of the augershaft. Lubricatewith a greasegun oncea season.See Figure23. Gear Case The augergear case is equippedwith a greasefitting. Lubricatewith greaseoncea season(orderpart number737-0168).See Figure6-2. NOTE: Torelievepressure,removethe vent plug beforelubricatingthe gear case.See Figure23. Failureto do so could resultin damageto the gear case seals. Augers Eachof the auger spiralassembliesis securedto the spiralshaftwith a shearpin and cotter pin.If the augershouldstrikea foreignobjector ice jam, the snowthroweris designedso that the pinsmay shear. 1. If augersdo not turn, checkto seeif pinshavesheared. 2. Replacethe pinsif needed.Tworeplacementshearpinsand cotterpins havebeen providedwith the snowthrower.Sprayan oil lubricantintoshaft beforeinsertingnewpinsand securingwith newcotter pins.See Fig.23. NOTE: Be carefulnotto get any oil on thealuminumdrive plateor rubberfrictionwheel.Doingso will hinderthe snowthrower'sdrive system.Wipeoff anyexcessor spilledoil. Shear Pins Vent Plug Grease Fitting Aluminum Drive Figure22 2O

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5.
Afterthe sparkplug is seated,tightenwith a spark plugwrenchto
compressthewasher.
NOTE:Wheninstallinga newsparkplug,tighten1/2-turnafterthe
sparkplugseatsto compressthe washer.Whenreinstallinga used
sparkplug,tighten1/8-to 1/4-turnafterthe sparkplugseatsto
compressthewasher.
hotandcan
ine.
CARBURETOR
ADJUSTMENT
Thecarburetoris notuseradjustable.ContactSearsParts& Repairfor
adjustment.
LUBRICATION
Drive
and
Shifting
Mechanism
At leastoncea seasonor afterevery25 hoursof operation,remove
rearcover.Lubricateallchains,sprockets,gears,bearings,shafts,and
the shiftingmechanism.Useengineoil ora spraylubricant.Referto
Figure22.
NOTE:Beforetippingthe unit on the front housing,run thefuel tank
emptyso fueldoes notleak outof thefuel cap.
1.
Carefullypivotthe snowthrowerup and forwardso that it restson
theaugerhousing.
2.
Removethe framecoverfromthe undersideof the snowthrower
byremovingtheself-tappingscrewswhichsecureit. Referto
Figure27.
3.
Applya lightcoatingof engineoil (or 3-in-1oil) to the hexshaft.
SeeFig.22.
NOTE: Be carefulnotto get any oil on thealuminumdrive plateor
rubberfrictionwheel.Doingso will hinderthe snowthrower'sdrive
system.Wipeoff anyexcessor spilledoil.
/
.............
Aluminum
Drive
Wheels
At leastoncea season,removebothwheels.Cleanand coat the axles
withamultipurposeautomotivegreasebeforereinstallingwheels.
Chute
Directional
Control
Once a season,lubricatethe eyebolt bushingand the spiralwith 3-in-1
oil.
Auger
Shaft
At leastoncea season,one at a time, removeall of theshearpins
from the auger shaft.Spraylubricantinsidethe hub of eachauger
spiralassemblyandaroundthespacersontheaugershaft.
Greasefittings can alsobe foundat each end of the augershaft.
Lubricatewitha greasegunoncea season.See Figure23.
Gear
Case
The augergearcaseis equippedwitha greasefitting.Lubricatewith
greaseoncea season(orderpart number737-0168).SeeFigure6-2.
NOTE: Torelievepressure,removethe ventplugbeforelubricatingthe
gearcase.See Figure23. Failureto doso could resultindamageto
thegearcaseseals.
Augers
Eachof the augerspiralassembliesis securedto the spiralshaftwith
ashearpinandcotterpin.Iftheaugershouldstrikeaforeignobjector
ice jam, the snowthroweris designedso that the pinsmay shear.
1.
Ifaugersdonotturn,checktoseeifpinshavesheared.
2.
Replacethepinsif needed.Tworeplacementshearpinsand
cotterpinshavebeenprovidedwiththesnowthrower.Sprayan
oil lubricantintoshaft beforeinsertingnewpinsand securingwith
newcotter pins.See Fig.23.
Shear Pins
Vent
Plug
Grease Fitting
Figure22
2O