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Engine; Spark Plug - Craftsman 79585 Owner's Manual

2 hp 3 cutting stage mulching and bagging chipper-shredder
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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 foam filter after every 25 hours of use, or at
least once a season. Service paper filter every 100
hours of use, or at least once a season. Service foam
filter and paper filter more often under dusty conditions.
• Remove wing nut and cover. Remove paper filter.
See figure 15.
• Remove and inspect filters for discoloration
or dirt
accumulation.
If necessary, service as follows.
• Foam filter: Clean and re-oil every three months or
every 25 operating hours. Clean and re-oil daily if
used in extremely dusty conditions.
• Wash in water and detergent solution. Squeeze
(don't twist) until all dirt is removed.
• Rinse thoroughly in clear water.
• Wrap in a clean cloth and squeeze (don't twist)
until completely dry.
• Saturate with engine oil. Squeeze (don't twist) to
distribute oil and remove excess oil.
• Paper filter:
Replace once a year or every 100
operating hours, or more often if used in extremely
dusty conditions.
• Clean inside of base and cover thoroughly.
• Replace paper and foam filters, making sure the
screen side is toward the paper filter. Replace cover
and wing nut. Tighten securely.
Base
Paper
Filter
/
Foam Filter
Wing
Cover-----.._
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. Clean more often if necessary.
4j_WARNING:
PERIODICALLY
CLEAN MUF-
FLER AREA TO REMOVE
ALL GRASS,
DIRT AND COMBUSTIBLE
DEBRIS.
Cooling Fins
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 t7. 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.
.030" Feeler Gauge
Plug
FIGURE 17.
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.
13

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247.795850