Clean Air Intake/Cooling Areas - Craftsman 917.270851 Owner's Manual

CLEAN AIR INTAKE/COOLING
AREAS
To insure proper cooling, make sure the
grass screen, cooling fins, and other
external surfaces of the engine are kept
clean at all times.
Every 100 hours of operation (more often
under extremely dusty, dirty conditions),
remove the blower housing and other
cooling shrouds. Clean the cooling fins
and external surfaces as necessary.
Make sure the cooling shrouds are
reinstalled.
NOTE: Operating the engine with a
blocked grass screen, dirty or plugged
cooling fins, and/or cooling shrouds
removed will cause engine damage due
to overheating.
AIR FILTER
Your engine will not run propedy using a
dirty air filter. Clean the foam pre-
cleaner after every 25 hours of operation
or every season. Service paper car-
tridge every 100 hours of operation or
every season, whichever occurs first.
Service air cleaner more often under
dusty conditions.
• Remove knobs and cover.
TO SERVICE PRE-CLEANER
• 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.
TO SERVICE CARTRIDGE
• Clean cartridge by tapping gently on
fiat surface. If very dirty or damaged,
replace cartridge.
• Reinstall precleaner cartridge, cover
and secure with knobs;
Knobs
Co_
Pr , ___Ca ridge
Foam e-C eaner_
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.
ENGINE OIL FILTER
Replace the engine oil filter every
season or every other oil change if the
tractor is used more than 100 hours in
one year.
MUFFLER
Inspect and replace corroded muffler
and spark arrester (if equipped) as it
could create a fire hazard and/or
damage.
SPARK PLUGS
Replac.e 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"
section of this manual.
IN-LINE FUEL FILTER
The 4=uel 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 propedy positioned.
• Immediately wipe up any spilled
gasoline.
Clamp pp _ .
Fuel "Filter_/_ _ _ ,
CLEANING
Clean engine, battery, seat, finish, etc.
i of all foreign matter.
Keep finished surfaces and wheels
free of all gasoline, oil, etc.
• Protect pa]nted 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