Craftsman 247.88845 Snow Blower User Manual


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22
SERVICE AND MAINTENANCE
Figure 31
Figure 32
Usinga3/4”wrench,holdthehexshaftandremovethehex4.
screw and belleville washer and bearing from left side of the
frame. Refer to Figure 32.
Holdingthefrictionwheelassembly,slidethehexshaftoutof5.
the friction wheel assembly and the right side of the frame. The
spacerontheleftsideofthehexshaftwillfallandthesprocket
should remain hanging lose in the chain.
Liftthefrictionwheelassemblyoutbetweentheaxleshaftand6.
the drive shaft assemblies.
Remove four screws securing the friction wheel to the hub 7.
assembly(refertoFigure33).Discardoldfrictionwheel.
Reassemble the new friction wheel onto the hub assembly, 8.
tighteningthefourscrewsinrotationandwithequalforce.Itis
important to assemble the friction wheel symmetrically for proper
functioning.
Reposition the friction wheel assembly in the snow thrower frame. 9.
Insertthepinfromtheshiftarmassemblyintothefrictionwheel
assembly and hold assembly in position. Refer to Figure 34.
Slidethehexshaftthroughtherightsideoftheframetowardthe10.
left side and through the friction wheel assembly.
After making certain that the chain is on both the large and the 11.
smallsprocket,alignthehexshaftwiththehexhubofthesmall
sprocket, and slide the shaft through the sprocket.
NOTE:Ifthesprocketfellfromthesnowthrowerwhileremovingthe
hexshaft,placethesprocketonthechain.Realignthesprocketonthe
chainwiththehexhubfacingtherightsideofunit.Positionthehex
hub of the sprocket toward the friction wheel when sliding the sprocket
ontothehexshaft.
Figure 33
Friction Wheel Ass’y.
HexShaft
Slide Hex
Shaft Out
Right Side
Remove HexScrew
Belleville Washer
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