Sears 247.79963 - Manual (Page 15)

SERVICE & ADJUSTMENT
A
WARNING: ALWAYS STOP ENGINE AND
DISCONNECT SPARK PLUG WIRE AND
MOVE IT AWAY FROM SPARK PLUG
BEFORE PERFORMING ANY ADJUST­
MENTS OR REPAIRS.
REMOVING THE FLAIL SCREEN
If the discharge area becomes clogged, remove the
flail screen and clean area as follows.
• Stop the engine. Make certain the chipper-vacuum
has come to a complete stop. Disconnect the spark
plug wire before unclogging the discharge chute.
• Remove the vacuum bag from the unit.
• Remove the four self-tapping screws from the
bottom of the discharge chute. (Be careful not to
drop the hardware into the chute.) Remove the dis­
charge chute assembly. See figure 19.
•
• Remove the two hex bolts and hex nuts which
extend through the housing. Lift the flail screen
from inside the housing. See figure 20.
• 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 20.
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 belt cover on the front of the engine by
removing the two self-tapping screws. See figure
21.
• Remove the access plate by removing two hex lock
nuts. See figure 22.
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