Craftsman 917.270840 - Manual (Page 22)

AIR FILTER
Your engine will not run properly using a
dh^ air filter. Clean the foam pre-cleaner
after every 25 hours of operation or every
f paper cartridge every
100 hours of operation or every season
whichever occurs first. ’
Service air cleaner more often under dustv
conditions.
• Remove knob(s) and cover.
TO SERVICE PRE-CLEANER
• Slide foam pre-cleaner off cartridge.
• Wash it in liquid detergent and water.
• Squeeze it dry in a clean cloth.
• Saturate it in engine oil. Wrap it in
clean, absorbent cloth and squeeze to
remove excess oil.
• If very dirty or damaged, replace pre­
cleaner.
• Reinstall pre-cleaner over cartridge.
• Reinstall cover and secure with knob(s)
TO SERVICE CARTRIDGE
^
• Remove wing nuts and cartridge plate.
• Carefully remove cartridge to prevent
debris from entering carburetor.
• Clean cartridge by tapping gently on flat
surface. If very dirty or damaged,
replace cartridge.
• Reinstall cartridge plate, wing nuts, pre­
cleaner, cover and secure with knob(s).
IMPORTANT: Petroleum solvents, such
as kerosene, are not to be used to clean
the cartridge. They may cause deteriora­
tion of the cartridge. Do not oil cartridge.
Do not use pressurized air to clean or dry
cartridge.
Knob — - ^Cover
Wng Nut
Foam Pre­
Cleaner
Carttridge
Plate
Air Screen
Cartiridge
ENGINE COOLING RNS
Rernove any dust, dirt or oil from engine
cooling fins to prevent engine damage
from overheating. Air guide covers must
be removed. Remove side panels and
hood (See “TO REMOVE HOOD AND
GRILL ASSEMBLY" in the Service and Ad­
justments section of this manual).
MUFFLER
Inspect and replace corroded muffler and
spark arrester (if equipped) as it could cre­
ate a fire hazard and/or damage.
SPARK PLUGS
Replace spark plugs at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs first.
Spark plug type and gap setting are
shown in “PRODUCT SPECIFICATiONS”
on page 5 of this manual.
IN-LINE FUEL FILTER
The fuel filter should be replaced once
each season. If fuel filter becomes
clogged, obstructing fuel flow to carbure­
tor, replacement is required.
• With engine cool, remove filter and plug
fuel line sections.
• Place new fuel filter in position in fuel
line with arrow pointing towards carbu­
retor.
• Be sure there are no fuel line leaks and
clamps are properly positioned.
22