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Changing Friction Wheel - Craftsman 247.883971 Operator's Manual

Cx series electric start snow thrower
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Brake
pter Post
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PulleySlot
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Figure 35
NOTE: If the pulleyadapterwas removedwith thepulley,align the
splinesof the pulleyadapterand augerinput shaft, and pushthe pulley
and adapterontothe inputshaft. Referto Figure36.
9.
Slidethe washerontothe hex screwremoved earlier and apply
Loctite262 to thethreadsof the hex screw.
10. Insertthe hexscrewthroughthe pulleyassemblyand intothe
threadsof the inputshaft.Torquethe hex screwto 250-325in.
Ibs.to securethe augerpulleyassemblyon the inputshaft.
11. If also replacingthe drivebelt, proceedto the "DriveBelt"instruc-
tions.If not, repositionthe transmissionframeback onto
theauger housing.
12. 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.
To adjust, disconnect ferrule frombrake bracket assembly. Thread f errule in
(towards idler) toincrease
tension o nbelt,orouttodecrease belttension.
NOTE:Thebrakepuck mustalwaysbe firmly seatedinthe pulley
groovewhenaugercontrol isdisengaged.
IMPORTANT:Repeatthe "AugerDriveControlTest"from the As-
semblysectionbeforeoperatingsnow thrower.
Drive Belt Repla(ement
If notalready done, remove t heauger drivebeltfromthefrontpulley oftheengine
double pulley. R efer to"Auger BeltReplacement"
instructions intheprevious
sub-section.
a. Pull the idler pulleyawayfrom the backsideof the drivebeltto
relievethetension.See Figure36.
b. Slip the drivebelt off the idler pulley. Carefullyreleasethe idler
pulley.
Figure36
2.
Rollthe drivebeltoff the lowerdrivepulley.
3.
Removethe belt fromthe engine pulley.
4.
Installthe newbelton the pulleysin the reverseorder and
re-tensionwith the idler pulley.
5.
Reassemble by performingthe previousstepsin theopposite
orderand mannerof removal.
CHANGING
FRICTION
WHEEL
The rubber onthefriction wheel i ssubject towear a nd should bechecked
periodically. Replace thefriction wheel i fanysigns o fwear o rcracking a re found.
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.
J
Figure37
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