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Spark Plug - Craftsman 247.797852 Owner's Manual

5 horsepower 3 cutting stage mulching and bagging chipper-shredder
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When engine is drained of all oil, replace drain plug
securely_
e Refill with fresh oil Above 32 °, use oil labeled SAE
30 or 10W30
Below 32 °, use oil labeled 5W20
Capacity
is approximately
1-1/4 pints
Refer to
"Gas and Oil Fill-Up" on page 8
e Replace dipstick.
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:
Clean cartridge at three month intervals or every 25
hours, whichever occurs first, See figure 15 Service
more often under dusty conditions.
e Loosen screws and tilt cover as illustrated
e Carefully remove pre-cleaner and cartridge
e Clean cartridge by tapping gently on a flat surface
If very dirty, replace cartridge and pre-cleaner
or
clean as follows:
Wash in a low or non-sudsing detergent and warm
water solution
CAUTION:
Do not use petroleum
solvents such as kerosene to clean cartridge
Rinse thoroughly with flowing water from inside out
until water is clear
Allow cartridge
to stand and air dry thoroughly
before using DO NOT OIL CARTRIDGE
OR PRE-
CLEANER
DO NOT USE PRESSURIZED
AIR TO
CLEAN OR DRY CARTRIDGE,
e Install cartridge and pre-cleaner
Then close cover
and fasten screws securely
;crew
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
WARNING:
PERIODICALLY
CLEAN
MUFFLER
AREA
TO
REMOVE
ALL
GRASS,
DIRT
AND
COMBUSTIBLE
DEBR S.
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
.030" Feeler Gauge
\
Spark Plug
FIGURE '17.
ge
Base
FIGURE 15.
CLEAN ENGINE
Clean engine periodically
Remove
dirt and debris
with a cloth or brush Cleaning with a forceful spray of
11
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
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 periodically with water Allow to dry
thoroughly in the shade Do not use heat

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247.797853