Craftsman 247.797855 - Manual (Page 12)

AIR CLEANER
The
air cieaner 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-
1mi y lifcj ItiU
■
To Service Air Cleaner:
Sen/ice pre-cleaner 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-
cieaner and cartridge more often under dusty condi­
tions.
® Loosen screw and remove cover.
® To service pre-cleaner, wash in liquid detergent
and water. Squeeze dry in a clean cloth. Saturate
in engine oii. Squeeze in a clean, absorbent cloth
to remove all excess oil. If pre-cieaner is very dirty,
it
© To service cartridge, clean by tapping gently on a
flat surface. If very dirty, replace. Do not oil car­
tridge.
NOTE: Do not use petroleum solvents (e g kerosene)
or pressurized air to clean cartridge. They will cause
cartridge to deteriorate.
® Reinstall cartridge and pre-cleaner.
® Replace cover, and tighten screws securely.
A
WARNING: PERIODICALLY CLEAN MUF­
FLER AREA TO REMOVE ALL GRASS,
DIRT AND COMBUSTIBLE DEBRIS.
CLEANING
®
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 periodicaily with water. Allow to dry
thoroughly in the shade.. Do not use heat.
Clean Out
Chaff and Dirt
FIGURE 16.
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 17. 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.
FIGURE 15.
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 16 to avoid overspeeding, overheating
and engine damage. Ciean more often if necessary.
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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