Craftsman 247.799892 - Manual (Page 12)

NOTE: Fuel stabilizer is an acceptable alternative in
minimizing the formation of fuel gum deposits during
storage. Add stabilizer to gasoline in fuel tank or stor­
age container. Always follow the mix ratio found on
stabilizer container. Run engine at least 10 minutes
after adding stabilizer to allow the stabilizer to reach
the carburetor. Do not drain the gas tank and carbure­
tor if using fuel stabilizer.
• Drain all the oil from the crankcase (this should be
done after the engine has been operated and is still
warm) and refill the crankcase with fresh oil.
• If you have drained the fuel tank, protect the inside
of the engine as follows. Remove spark plug, pour
approximately 1/2 ounce (approximately one table­
spoon) of engine oil into cylinder and crank slowly
to distribute oil. Replace spark plug.
OTHER
• Do not store gasoline from one season to another.
• Replace your gasoline can if your can starts to rust.
Rust and/or dirt in your gasoline will cause problems.
• Store unit in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer.
NOTE: If storing in an unventilated or metal storage
shed, be certain to rustproof the equipment by coating
with a light oil or silicone.
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-shredder
has come to a complete stop and disconnect spark
plug wire from the spark plug before unclogging the
chute.
• Loosen the two hand knobs on each side of the
chute deflector. Lift the chute deflector up, and tie it
out of the way.
• Remove two hairpin clips from the clevis pins which
extend through the housing. Remove the clevis
pins. Lift the flail screen from inside the housing.
See figure 13.
• 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 13.
Chute Deflector-------------- *-11 .. . . \\ W
SHARPENING OR REPLACING THE BLADES
CHIPPER BLADES
• Disconnect spark plug wire and move it away from
spark plug.
• Remove the flail screen as instructed in previous
section.
• Remove the chipper chute by removing three hex
nuts and washers. A 1/2" wrench is required. See
figure 13.
NOTE: When reassembling, the cupped washer goes
on the bottom of the chipper chute with the cupped
side against the chute.
• Rotate the impeller assembly by hand until you
locate one of the chipper blades in the chipper
chute opening. 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 hous­
ing). See figure 14.
• Remove the other blade in the same manner.
FIGURE 13.
Hand Knobs
FIGURE 14.
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