Sears 247.79964 - Manual (Page 15)

Hex Bolt
Flat Washer
Hex Nut
Discharge
Chute
Assembly
Ç Seif-Tapping
Screws
FIGURE 18.
• Remove the two hex bolts and hex nuts which
extend through the housing. Lift the flail screen
from inside the housing. See figure 19.
• Clean the screen by scraping or washing with
water. Reinstall the screen.
NOTE: Be certain to reassemble the flail screen with
the curved side down as shown in figure 19.
SHARPENING OR REPLACING CHIPPER BLADES
• Disconnect the spark plug wire and move away
from the spark plug.
• Remove the flail screen as instructed in the previ­
ous section.
• Remove the plastic belt cover on the front of the
engine by removing the two self-tapping screws.
See figure 20.
• Remove the access plate by removing two hex lock
nuts. See figure 21.
• Locate one of the chipper blades in the access
plate opening by rotating the impeller assembly by
hand. Remove the blade using a 3/16" alien
wrench on the outside of the blade and 1/2" wrench
on the impeller assembly, inside the housing.
Torque hardware to 250-350 inch pounds.
• Remove the other blade in the same manner.
Replace or sharpen blades. If sharpening, make
certain to remove an equal amount from each
blade. Reassemble in reverse order.
NOTE: Make certain blades are reassembled with the
sharp edge facing upward, as viewed from the access
plate opening.
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