Spark Plugs; Engine Cooling Fins - Craftsman EX3 917.270850 Owner's Manual

AIR FILTER
Your engine will not run properly using a
dirty air filter. Clean the foam pre-cleaner
after every 25 hours of operation or
every season. Service paper cartridge
every 1 O0 hours of operation or every
season, whichever occurs first.
Service air cleaner more often under
dusty conditions.
• Remove knob(s) and cover.
TO SERVICE PRE-CLEANER
• Slide foam pre-cleaner off cartridge.
• Wash it in tiquid detergent and water.
• Squeeze it dry in a clean cloth.
• Satur_ite 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
fiat surface. If very dirty or damaged,
replace cartridge.
• Reinstall cartridge plate, wing nuts,
precleaner, 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.
•
Pre-Cleaner
Air Screen__
ENGINE COOLING FINS
Remove 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
GRILLASSEMBLY" in the Service and
Adjustments section of this manual).
Top
Guide Cover "_[----_._.
Engine
Coolind
Air GuideCover
(Both Sides)
MUFFLER
Inspect and replace corroded muffler
and spark arrester (if equipped) as it
could create a fire hazard and/or
damage.
SPARK PLUGS
Replace spark p{ugs at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs
firsL Spark plug type and gap setting are
shown in "PRODUCT SPECIFICATIONS"
section 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
carburetor.
• Be sure there are no fuel line leaks
and clamps are properly positioned.
• Immediately wipe up any spilled
gasoline.
Fuel Flit er--"_._J_._ --
CLEANING
Clean engine, battery, seat, finish, etc.
i of all foreign matter.
Keep finished surfaces and wheels
free of all gasoline, oil, etc.
• Protect painted surfaces with automo-
tive type wax.
We do not recommend using a garden
hose to clean your tractor unless the
electrical system, muffler; air filter and
carburetor are covered to keep water out.
Water in engine can result in a short-
ened engine life.
2O