Sears 247.8867 - Manual (Page 15)

Drive Belt
1. Follow steps 1 through 8 of the previous section.
2. Disconnect the drive cable from the traction drive
clutch lever {on right side of handle) by removing
the hex nut and slipping the cable off the weld pin.
3. Unhook the spring from the idler bracket. See
figure 26.
Allen
Wrench
FIGURE 26.
4. Slip belt from between belt guard and fixed idler
pulley as shown in figure 27.
5. Using a 1 /8" Allen wrench, loosen (do not remove)
the two set screws in the groove of the fixed idler
pulley.
■^NOTE
The two set screws are on opposite
sides of the pulley. It may be
necessary to pull the starter rope
slightly to rotate the pulley, which
will allow access to the set screws.
Be certain spark plug wire is discon­
nected,
6. Remove the fixed idler pulley and belt. Remove
belt from around idler pulley.
7. Using a 3/4" socket wrench, remove the center nut
from the drive pulley. Slide pulley out, and remove
the belt.
8. Reassemble the new belt, following instructions in
reverse order.
FIGURE 27.
AUGER SHEAR BOLT REPLACEMENT
The augers are secured to the auger shaft with two
special shear bolts and hex lock nuts. If you hit a foreign
object or ice jam, snow thrower is designed so the bolts
will break (to protect the snow thrower). Refer to figure
19.
If the augers will not turn, check to see if the hex bolts
have sheared. Two spare bolts and hex lock nuts have
been provided with the snow thrower. Use only original
equipment shear bolts and nuts, part numbers
710-0890 (shear bolt) and 712-0429 (hex lock nut).
SPARK PLUG
Clean spark plug and reset gap periodically. Clean area
around spark plug base before removing to prevent dirt
from entering engine. Replace spark plug if electrodes
are pitted or burned, or if porcelain is cracked. Spark
plug replacement is recommended at beginning of each
season. Refer to Engine Repair Parts section of this
manual for proper replacement plug. If reusing spark
plug, clean by carefully scraping electrodes (do not
sand blast or use wire brush). Be certain entire spark
plug is clean. Cleck electrodes gap with a wire feeler
gauge, and reset gap to 0.030 if necessary. See figure
28.
Install spark plug in engine, and tighten securely. If tor­
que wrench is available, torque plug to between 18 and
23 foot pounds.
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