Craftsman 247.795861 - Manual (Page 12)

AIR CLEANER
The air cleaner prevents damaging dirt, dust, etc.,
from entering the carburetor and being forced into the
engine and is important to engine life and per­
formance.
Never run your engine without air cleaner com­
pletely assembled.
To Service Air Cleaner:
Service pre-cieaner after every 25 hours of use, or at
least once a season. Service cartridge every 100
hours of use, or at least once a season. Service pre­
cleaner and cartridge more often under dusty condi­
tions,
® Remove wing nut and cover.
© To service foam pre-cleaner: Remove pre-cleaner
by sliding it off the cartridge. Wash in liquid deter­
gent and water . Squeeze dry in a clean cloth.
Saturate in engine oil. Squeeze in a clean,
absorbent cloth to remove all excess oil. If pre­
cleaner is very dirty, replace it.
© To service cartridge: Remove cartridge by remov­
ing wing nut and lifting off cup and cartridge. Clean
by tapping gerrtly on a flat surface If very dirty,
replace Do not oil cartridge.
NOTE: Do not use petroleum solvents (e.g, kerosene)
or pressurized air to clean cartridge. They will cause
cartridge to deteriorate.
® Reinstall cartridge, cup, pre-cleaner and cover,
® Fasten wing nuts securely.
.................... —
-Wing Nut
(Upper)
-Cover
Foam
Pre-Cleaner
Wing Nut
Cup
I ■<—Cartridge
FIGURE 15.
FUEL FILTER
Your engine is equipped with a replaceable in-line fuel
filter. Replace the fuel filter every season. See figure
16. Refer to engine parts list for correct replacement
filter.
FIGURE 16.
CLEAN ENGINE :
Clean engine periodically. Remove dirt and debris
with a cloth or brush. Cleaning with a forceful spray of
water is not recommended as water could contami­
nate the fuel system.
Yearly or every 25 hours, whichever occurs first,
remove the blower housing and clean the areas
shown in figure 17 to avoid overspeeding, overheating
and engine damage. Clean more often if necessary.
A WARNING: PERIODICALLY CLEAN MUF­
FLER AREA TO REMOVE ALL GRASS,
DIRT AND COMBUSTIBLE DEBRIS.
LEANING
The chipper-shredder may be cleaned by running
water from a hose through the hopper assembly
and chipper chute with the engine running. Allow
the chipper-shredder to dry thoroughly.
® Wash the bag periodically with water. Allow to dry
thoroughly in the shade. Do not use heat.
SPARK PLUG
The spark plug should be cleaned and the gap reset
to .030" at least once a season or every 50 hours of
operation. See figure 18. Spark plug replacement is
recommended at the start of each season. Refer to
engine parts list for correct spark plug type,
NOTE: Do not sandblast spark plug. Spark plug
should be cleaned by scraping or wire brushing and
washing with a commercial solvent.
MUFFLER
Do not operate the chipper-shredder without a muffler
or tamper with the exhaust system. Damaged mufflers
or spark arresters could create a fire hazard. Inspect
periodically, and replace if necessary. If your engine
is equipped with a spark arrester screen assembly,
remove every 50 hours for cleaning and inspection.
Replace if damaged.
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