Craftsman 358.351900 Operator's Manual page 17

COOLING SYSTEM
Tokeep t he working temperature as
low aspossible the machine is
equipped with acooling system.
The cooling system c onsists of:
• Airintake onthe starter
• Air guide p late
• Fins onthe flywheel
• Cooling fins onthe cylinder
• Cylinder cover (directs cold airover
the cylinder)
Clean the cooling system w ith abrush
after e ach use, more o ften i ndemand-
ing conditions. Adirty o rblocked cool-
ing system r esults inthe machine
overheating which c auses damage to
the piston a nd cylinder.
CHECK CHAIN B RAKE
See CHAIN BRAKE intheOPERATION
section.
CLEAN AIR FILTER
CAUTION: Do not c lean f ilter i ngaso-
line orother flammable solvent to
avoid c reating afire hazard orproduc-
ing harmful evaporative emissions.
Cleaning the
air filter:
A dirty air filter decreases the life and
performance of the engine and in-
creases fuel consumption and harmful
emissions. Always clean your air filter
after 10 tanks of fuel or 5 hours of op-
eration, whichever comes first. Clean
more frequently in dusty conditions. A
used air filter can never be completely
cleaned. It is advisable to replace your
air filter with a new one after every 50
hours of operation, or annually, which-
ever comes first.
1. Loosen 3 screws on cylinder cover.
2. Remove cylinder cover.
3. Remove air filter cover and air filter.
4. Clean the air filter using hot soapy
water. Rinse with clean cool water.
Air dry completely before reinstal-
ling.
5. Reinstall air filter and air filter cov-
er.
6. Reinstall cylinder cover and 3
screws. Tighten securely.
Air Filter
Cover
Cylinder
Cover
INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
_IkWARNING: The muffler on this
product contains chemicals known to
the State of California to cause cancer.
As the unit is used, carbon deposits
build up on the muffler and spark ar-
resting screen, and must be removed
to avoid creating a fire hazard or af-
fecting engine performance.
Replace the spark arresting screen if
breaks occur.
Spark Exhaust
Arresting Outlet
Screen Cover
V
i
Nut
Muffler
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of
operation or annually, whichever
comes first.
1. Loosen and remove the nut from
the exhaust outlet cover.
2. Remove the exhaust oulet cover.
3. Remove spark arresting screen.
Handle screen carefully to prevent
damage.
4. Clean the spark arresting screen
gently with a wire brush. Replace
screen if breaks are found.
5. Replace any broken or cracked
muffler parts.
6. Reinstall spark arresting screen, ex-
haust outlet cover, and nut. Tighten
nut securely.
17