Changing Friction Wheel - Craftsman 247.88835 Operator's Manual

NOTE: If the pulleyadapterwas removedwiththe pulley,align the
splinesof the pulleyadapterand augerinputshaft, and pushthe pulley
and adapterontothe inputshaft. Referto Figure34.
10. Slidethe washerontothe hex screwremoved earlier and apply
Loctite262 to thethreadsof the hex screw.
11. Insertthe hexscrewthroughthe pulleyassemblyand intothe
threadsof the inputshaft.Torquethe hex screwto 250-325in.
Ibs.to securethe augerpulleyassemblyon the inputshaft.
12. If also replacingthe drivebelt, proceedto the "DriveBelt"
instructions.If not, repositionthetransmissionframe backonto
theauger housing.
13. Installthedrive belton theengine pulley,re-connectthe auger
cablez-fittingand augeridler rodferruleto the brakebracket.
Repositionand securethe engine pulleybelt guard,and re-install
the beltcover.
NOTE:Makesureto removethe pieceof woodblockingthe impeller.
Checkthe auger drivebeltadjustment. Withthe auger clutchlever
in the disengagedposition,thetop surfaceof the newbelt shouldbe
evenwith theoutsidediameterof the pulley.
Toadjust,disconnectferrulefrom brakebracketassembly.Thread
ferrulein (towardsidler) to increasetensionon belt, or out to decrease
belttension.
NOTE:Thebrakepuck mustalwaysbe firmly seatedin the pulley
groovewhenaugercontrol is disengaged.
iMPORTANT:Repeatthe "AugerDriveControlTest"from the As-
semblysectionbeforeoperatingsnow thrower.
Drive Belt Replacement
If notalreadydone,removethe augerdrivebelt from thefront pulleyof
theengine doublepulley.Referto "AugerBeltReplacement" instruc-
tions inthe previoussub-section.
1. a. Pull the idlerpulleyaway fromthe backsideof the drivebelt to
relievethe tension.See Figure35.
b. Slip the drivebeltoff the idlerpulley. Carefullyreleasethe idler
pulley.
Figure35
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2. Rollthedrive beltoff the lowerdrive pulley.
3. Removethe beltfrom the enginepulley.
4. Installthe newbelt on the pulleysin the reverseorderand
re-tension with the idler pulley.
5. Reassemble by performing the previousstepsinthe opposite
order and mannerof removal.
CHANGING FRICTION WHEEL
The rubberon the frictionwheelis subjectto wearand shouldbe
checkedperiodically.Replacethefrictionwheelif anysigns of wearor
crackingarefound.
1. Runthe unit'sfuel tankdry beforeperformingStep2.
2. Tip thesnowthrowerup and forward,sothat itrestson thehousing.
3. Removescrewsfrom theframe coverunderneaththe snow
thrower(referto Figure36). Removethe rightwheelfrom the
axle.
H
.
f
Figure36
Usinga 3/4" wrench,hold the hexshaftand removethe hex
screwand bellevillewasherand bearingfrom left sideof the
frame.Referto Figure37.
HexShaft
RemoveHexScrew
Belleville Washer
FrictionWheelAss'y.
/
Slide Hex
Shaft Out
RightSide
Figure37
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