Changing Friction Wheel - Craftsman Professional 247.88848 Operator's Manual

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pter Post
Brake
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Figure35
NOTE: If the pulleyadapterwas removedwiththe pulley,align the
splinesof the pulleyadapterand augerinputshaft, and pushthe pulley
and adapterontothe inputshaft. Referto Figure35.
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"instruc-
tions.If not, repositionthe transmissionframeback onto
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 idlerpulleyawayfrom the backsideof the drivebeltto
relievethetension.See Figure36.
b. Slip the drivebelt off the idlerpulley. Carefullyreleasethe idler
pulley.
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Figure36
2. Rollthe drivebeltoff the lowerdrivepulley.
3. Removethe belt fromthe engine pulley.
4. Installthe newbelton the pulleysin the reverseorder and
re-tensionwith the idlerpulley.
5. Reassemble by performingthe previousstepsin theopposite
orderand mannerof removal.
CHANGING FRICTION WHEEL
The rubberon the frictionwheelis subjectto wearand shouldbe
checkedperiodically.Replacethefrictionwheelif anysigns of wearor
crackingarefound.
1. Runthe unit'sfuel tankdry beforeperformingStep2. Donot
attemptto pour fuel fromthe engine.
2. Tip the snowthrowerup and forward,sothat it restson the
housing.
3. Removescrewsfrom theframe coverunderneaththe snow
thrower(referto Figure37). Removethe rightwheelfromthe axle.
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Figure37
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